gcc/libcpp/expr.c

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/* Parse C expressions for cpplib.
Copyright (C) 1987-2015 Free Software Foundation, Inc.
Contributed by Per Bothner, 1994.
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This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 3, or (at your option) any
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later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
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#include "config.h"
#include "system.h"
Warning Fixes: * Makefile.in (print-rtl.o): Depend on bitmap.h. (dbxout.o): Depend on toplev.h. ($(SCHED_PREFIX)sched.o): Likewise. ($(out_object_file)): Likewise for system.h and toplev.h. (cppmain.o): Depend on gansidecl.h. (cpplib.o): Likewise. (cpperror.o): Likewise. (cppexp.o): Likewise. (cpphash.o): Likewise. (cppalloc.o): Likewise. (fix-header.o): Depend on cpplib.h and cpphash.h. (scan-decls.o): Depend on gansidecl.h. * basic-block.h (free_regset_vector): Add prototype. * cccp.c (check_precompiled): Mark parameter `fname' with ATTRIBUTE_UNUSED. (do_assert): Likewise for `op' and `keyword'. (do_unassert): Likewise. (do_line): Likewise for `keyword'. (do_error): Likewise for `op' and `keyword'. (do_warning): Likewise. (do_ident): Likewise for `keyword'. (do_pragma): Likewise for `limit', `op' and `keyword'. (do_sccs): Likewise. (do_if): Likewise for `keyword'. (do_elif): Likewise. (do_else): Likewise. (do_endif): Likewise. * collect2.c (getenv): Remove redundant prototype. (collect_exit, collect_execute, dump_file): Likewise. (dump_list): Wrap prototype and definition in COLLECT_EXPORT_LIST. (dump_prefix_list): Hide prototype and definition. * sparc.c: Include toplev.h. (intreg_operand): Mark parameter `mode' with ATTRIBUTE_UNUSED. (symbolic_memory_operand): Likewise. (sp64_medium_pic_operand): Likewise. (data_segment_operand): Likewise. (text_segment_operand): Likewise. (splittable_symbolic_memory_operand): Likewise. (splittable_immediate_memory_operand): Likewise. (eq_or_neq): Likewise. (normal_comp_operator): Likewise. (noov_compare_op): Likewise. (v9_regcmp_op): Likewise. (v8plus_regcmp_op): Likewise. (extend_op): Likewise. (cc_arithop): Likewise. (cc_arithopn): Likewise. (small_int): Likewise. (uns_small_int): Likewise. (clobbered_register): Likewise. (legitimize_pic_address): Likewise. (delay_operand): Likewise. (sparc_builtin_saveregs): Remove unused variable `stdarg'. * sparc.h (order_regs_for_local_alloc, eligible_for_return_delay, sparc_issue_rate, v8plus_regcmp_p): Add prototypes. * sparc.md (cmpdi_v8plus): Add abort for default case in switch. * cppalloc.c: Include gansidecl.h. * cpperror.c: Include stdarg.h/varargs.h and gansidecl.h. (cpp_file_line_for_message): Mark parameter `pfile' with ATTRIBUTE_UNUSED. (v_cpp_message): New function. (cpp_message): Use it. Also convert to variable arguments. (cpp_fatal): Likewise. (cpp_pfatal_with_name): Constify parameter `name'. * cppexp.c: Move gansidecl.h before cpplib.h. * cpphash.c: Likewise. * cpphash.h (hashf, delete_macro): Add prototypes. * cpplib.c: Include stdarg.h/varargs.h and move gansidecl.h before cpplib.h. Don't include errno.h. (update_path): Add arguments to prototype. (cpp_fatal, cpp_file_line_for_message, cpp_message, delete_macro, cpp_print_containing_files): Remove redundant prototypes. (cpp_hash_cleanup, add_import, append_include_chain, make_assertion, path_include, initialize_builtins, initialize_char_syntax, finclude, validate_else, comp_def_part, lookup_import, redundant_include_p, is_system_include, read_name_map, read_filename_string, open_include_file, check_macro_name, compare_defs, compare_token_lists, eval_if_expression, change_newlines): Add prototype arguments. (hashf): Remove redundant prototype. (read_token_list, free_token_list, safe_read, xcalloc, savestring, conditional_skip, skip_if_group): Add prototype arguments. (fdopen): Remove redundant prototype. (do_define, do_line, do_include, do_undef, do_error, do_pragma, do_ident, do_if, do_xifdef, do_else, do_elif, do_endif, do_sccs, do_once, do_assert, do_unassert, do_warning): Add prototype arguments. (struct directive): Add prototype arguments to function pointer member `func'. (handle_directive): Add missing arguments to call to `do_line'. (do_include): Mark parameters `unused1' and `unused2' with ATTRIBUTE_UNUSED. (do_line): Likewise for `keyword' and new parameters `unused1' and `unused2'. (do_error): Likewise for `keyword'. (do_warning): Likewise. Also add missing argument `pfile' in call to cpp_pedwarn. (do_once): Mark parameter `keyword', `unused1' and `unused2' with ATTRIBUTE_UNUSED. (do_ident): Likewise for `keyword', `buf' and `limit'. (do_pragma): Likewise. Also add missing arguments in call to do_once. (do_sccs): Mark parameter `keyword', `buf' and `limit' with ATTRIBUTE_UNUSED. (do_if): Likewise for `keyword'. (do_elif): Likewise. (eval_if_expression): Likewise for `buf' and `length'. (do_xifdef): Likewise for `unused1' and `unused2'. (do_else): Likewise for `keyword', `buf' and `limit'. (do_endif): Likewise. (parse_name): Add missing argument `pfile' in call to cpp_pedwarn. (cpp_handle_options): Remove superfluous NULL argument in call to cpp_fatal. (cpp_handle_options): Likewise. (do_assert): Mark parameter `keyword', `buf' and `limit' with ATTRIBUTE_UNUSED. (do_unassert): Likewise. (cpp_print_file_and_line): Add missing argument `pfile' in call to cpp_file_line_for_message. (v_cpp_error): New function. (cpp_error): Use it. Also accept variable arguments. (v_cpp_warning): New function. (cpp_warning): Use it. Also accept variable arguments. (cpp_pedwarn): Accept variable arguments. (v_cpp_error_with_line): New function (cpp_error_with_line): Use it. Accept variable arguments. (v_cpp_warning_with_line): New function. (cpp_warning_with_line): Use it. Accept variable arguments. Hide definition. (cpp_pedwarn_with_line): Accept variable arguments. (cpp_pedwarn_with_file_and_line): Likewise. (cpp_error_from_errno): Constify parameter `name'. Add missing argument `pfile' in call to cpp_file_line_for_message. (cpp_perror_with_name): Constify parameter `name'. * cpplib.h: Define PARAMS() in terms of PROTO(). (fatal): Remove redundant prototype. (cpp_error, cpp_warning, cpp_pedwarn, cpp_error_with_line, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line, cpp_error_from_errno, cpp_perror_with_name, cpp_pfatal_with_name, cpp_fatal, cpp_message, cpp_pfatal_with_name, cpp_file_line_for_message, cpp_print_containing_files): Add arguments to prototypes. (scan_decls, cpp_finish): Add prototypes. * cppmain.c: Include gansidecl.h. (main): Remove unused variable `i'. * dbxout.c: Include toplev.h. * demangle.h (do_tlink, collect_execute, collect_exit, collect_wait, dump_file, file_exists): Add prototype. * dwarf2out.c (dwarf_type_encoding_name, decl_start_label): Hide prototype and definition. (gen_unspecified_parameters_die): Don't assign results of call to function new_die() to unused variable `parm_die'. (dwarf2out_line): Mark parameter `filename' with ATTRIBUTE_UNUSED. (dwarf2out_define): Likewise for `lineno' and `buffer'. * dwarfout.c (output_unsigned_leb128, output_signed_leb128): Hide prototype and definition. (output_die): Add prototype arguments to function pointer arg. (output_unspecified_parameters_die): Mark parameter `arg' with ATTRIBUTE_UNUSED. * except.c (output_exception_table_entry): Remove unused variable `eh_entry'. * except.h (expand_fixup_region_start, expand_fixup_region_end): Add prototypes. * expr.c (do_jump_by_parts_equality_rtx): Remove prototype. * expr.h (do_jump_by_parts_equality_rtx): Add prototype. * fix-header.c: Include stdarg.h/varargs.h, move gansidecl.h before cpplib.h, include cpphash.h, remove redundant prototype of cpp_fatal, don't define `const', add a prototype for `fatal'. (cpp_file_line_for_message): Add missing arguments `pfile'. (v_cpp_message): New function. (cpp_message): Use it. (v_fatal): New function. (fatal, cpp_fatal): Use it. (cpp_pfatal_with_name): Constify parameter `name'. * flow.c (free_regset_vector): Remove redundant prototype. * function.c (round_down): Wrap prototype and definition with macro ARGS_GROW_DOWNWARD. (record_insns): Wrap prototype and definition with defined (HAVE_prologue) || defined (HAVE_epilogue). * gansidecl.h (ATTRIBUTE_PRINTF_4, ATTRIBUTE_PRINTF_5): New macros. * gen-protos.c: Include gansidecl.h. (hashf): Don't make it static, constify parameter `name'. * genattrtab.c (check_attr_test): Change XEXP() to XSTR() to match specifier %s in calls to function `fatal'. * haifa-sched.c: Include toplev.h. (find_rgns): Remove unused variable `j'. * integrate.c (note_modified_parmregs): Mark parameter `x' with ATTRIBUTE_UNUSED. (mark_stores): Likewise. * jump.c (mark_modified_reg): Likewise. * output.h (insn_current_reference_address): Add prototype. (eh_frame_section): Likewise. * print-rtl.c: Include bitmap.h. * reload1.c (reload): Wrap variables `note' and `next' in macro PRESERVE_DEATH_INFO_REGNO_P. (forget_old_reloads_1): Mark parameter `ignored' with ATTRIBUTE_UNUSED. (choose_reload_regs): Remove unused variable `in'. (reload_cse_invalidate_mem): Mark parameter `ignore' with ATTRIBUTE_UNUSED. (reload_cse_check_clobber): Likewise. * rtl.h (expand_null_return, reg_classes_intersect_p): Add prototype. (mark_elimination): Fix typo in prototype. * scan-decls.c: Include gansidecl.h. * tree.h (using_eh_for_cleanups, supports_one_only): Add prototype. From-SVN: r19867
1998-05-19 10:42:48 +02:00
#include "cpplib.h"
Makefile.def (host_modules): add libcpp. ChangeLog: 2004-05-23 Paolo Bonzini <bonzini@gnu.org> * Makefile.def (host_modules): add libcpp. * Makefile.tpl: Add dependencies on and for libcpp. * Makefile.in: Regenerate. * configure.in: Add libcpp host module. * configure: Regenerate. config/ChangeLog: 2004-05-23 Paolo Bonzini <bonzini@gnu.org> * acx.m4 (ACX_HEADER_STDBOOL, ACX_HEADER_STRING): From gcc. gcc/ChangeLog: 2004-05-23 Paolo Bonzini <bonzini@gnu.org> Move libcpp to the toplevel. * Makefile.in: Remove references to libcpp files, use CPPLIBS instead of libcpp.a. Define SYMTAB_H and change hashtable.h to that. * aclocal.m4 (gcc_AC_HEADER_STDBOOL, gcc_AC_HEADER_STRING, gcc_AC_C__BOOL): Remove. * configure.ac (gcc_AC_C__BOOL, HAVE_UCHAR): Remove tests. * configure: Regenerate. * config.in: Regenerate. * c-ppoutput.c: Include ../libcpp/internal.h instead of cpphash.h. * cppcharset.c: Removed. * cpperror.c: Removed. * cppexp.c: Removed. * cppfiles.c: Removed. * cpphash.c: Removed. * cpphash.h: Removed. * cppinit.c: Removed. * cpplex.c: Removed. * cpplib.c: Removed. * cpplib.h: Removed. * cppmacro.c: Removed. * cpppch.c: Removed. * cpptrad.c: Removed. * cppucnid.h: Removed. * cppucnid.pl: Removed. * cppucnid.tab: Removed. * hashtable.c: Removed. * hashtable.h: Removed. * line-map.c: Removed. * line-map.h: Removed. * mkdeps.c: Removed. * mkdeps.h: Removed. * stringpool.h: Include symtab.h instead of hashtable.h. * tree.h: Include symtab.h instead of hashtable.h. * system.h (O_NONBLOCK, O_NOCTTY): Do not define. gcc/cp/ChangeLog: 2004-05-23 Paolo Bonzini <bonzini@gnu.org> * Make-lang.in: No need to specify $(LIBCPP). gcc/java/ChangeLog: 2004-05-23 Paolo Bonzini <bonzini@gnu.org> * Make-lang.in: Link in $(LIBCPP) instead of mkdeps.o. libcpp/ChangeLog: 2004-05-23 Paolo Bonzini <bonzini@gnu.org> Moved libcpp from the gcc subdirectory to the toplevel. * Makefile.am: New file. * Makefile.in: Regenerate. * configure.ac: New file. * configure: Regenerate. * config.in: Regenerate. * charset.c: Moved from gcc/cppcharset.c. Add note about brokenness of input charset detection. Adjust for change in name of cppucnid.h. * errors.c: Moved from gcc/cpperror.c. Do not include intl.h. * expr.c: Moved from gcc/cppexp.c. * files.c: Moved from gcc/cppfiles.c. Do not include intl.h. Remove #define of O_BINARY, it is in system.h. * identifiers.c: Moved from gcc/cpphash.c. * internal.h: Moved from gcc/cpphash.h. Change header guard name. All other files adjusted to match name change. * init.c: Moved from gcc/cppinit.c. (init_library) [ENABLE_NLS]: Call bindtextdomain. * lex.c: Moved from gcc/cpplex.c. * directives.c: Moved from gcc/cpplib.c. * macro.c: Moved from gcc/cppmacro.c. * pch.c: Moved from gcc/cpppch.c. Do not include intl.h. * traditional.c: Moved from gcc/cpptrad.c. * ucnid.h: Moved from gcc/cppucnid.h. Change header guard name. * ucnid.pl: Moved from gcc/cppucnid.pl. * ucnid.tab: Moved from gcc/cppucnid.tab. Change header guard name. * symtab.c: Moved from gcc/hashtable.c. * line-map.c: Moved from gcc. Do not include intl.h. * mkdeps.c: Moved from gcc. * system.h: New file. libcpp/include/ChangeLog: 2004-05-23 Paolo Bonzini <bonzini@gnu.org> * cpplib.h: Moved from gcc. Change header guard name. * line-map.h: Moved from gcc. Change header guard name. * mkdeps.h: Moved from gcc. Change header guard name. * symtab.h: Moved from gcc/hashtable.h. Change header guard name. libcpp/po/ChangeLog: 2004-05-23 Paolo Bonzini <bonzini@gnu.org> * be.po: Extracted from gcc/po/be.po. * ca.po: Extracted from gcc/po/ca.po. * da.po: Extracted from gcc/po/da.po. * de.po: Extracted from gcc/po/de.po. * el.po: Extracted from gcc/po/el.po. * es.po: Extracted from gcc/po/es.po. * fr.po: Extracted from gcc/po/fr.po. * ja.po: Extracted from gcc/po/ja.po. * nl.po: Extracted from gcc/po/nl.po. * sv.po: Extracted from gcc/po/sv.po. * tr.po: Extracted from gcc/po/tr.po. From-SVN: r82199
2004-05-24 12:50:45 +02:00
#include "internal.h"
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#define PART_PRECISION (sizeof (cpp_num_part) * CHAR_BIT)
#define HALF_MASK (~(cpp_num_part) 0 >> (PART_PRECISION / 2))
#define LOW_PART(num_part) (num_part & HALF_MASK)
#define HIGH_PART(num_part) (num_part >> (PART_PRECISION / 2))
struct op
{
const cpp_token *token; /* The token forming op (for diagnostics). */
cpp_num value; /* The value logically "right" of op. */
source_location loc; /* The location of this value. */
enum cpp_ttype op;
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};
/* Some simple utility routines on double integers. */
#define num_zerop(num) ((num.low | num.high) == 0)
#define num_eq(num1, num2) (num1.low == num2.low && num1.high == num2.high)
static bool num_positive (cpp_num, size_t);
static bool num_greater_eq (cpp_num, cpp_num, size_t);
static cpp_num num_trim (cpp_num, size_t);
static cpp_num num_part_mul (cpp_num_part, cpp_num_part);
static cpp_num num_unary_op (cpp_reader *, cpp_num, enum cpp_ttype);
static cpp_num num_binary_op (cpp_reader *, cpp_num, cpp_num, enum cpp_ttype);
static cpp_num num_negate (cpp_num, size_t);
static cpp_num num_bitwise_op (cpp_reader *, cpp_num, cpp_num, enum cpp_ttype);
static cpp_num num_inequality_op (cpp_reader *, cpp_num, cpp_num,
enum cpp_ttype);
static cpp_num num_equality_op (cpp_reader *, cpp_num, cpp_num,
enum cpp_ttype);
static cpp_num num_mul (cpp_reader *, cpp_num, cpp_num);
static cpp_num num_div_op (cpp_reader *, cpp_num, cpp_num, enum cpp_ttype,
source_location);
static cpp_num num_lshift (cpp_num, size_t, size_t);
static cpp_num num_rshift (cpp_num, size_t, size_t);
static cpp_num append_digit (cpp_num, int, int, size_t);
static cpp_num parse_defined (cpp_reader *);
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
static cpp_num eval_token (cpp_reader *, const cpp_token *, source_location);
static struct op *reduce (cpp_reader *, struct op *, enum cpp_ttype);
static unsigned int interpret_float_suffix (cpp_reader *, const uchar *, size_t);
static unsigned int interpret_int_suffix (cpp_reader *, const uchar *, size_t);
static void check_promotion (cpp_reader *, const struct op *);
Implement SD-6: SG10 Feature Test Recommendations 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * internal.h (lexer_state, spec_nodes): Add in__has_include__. * directives.c: Support __has_include__ builtin. * expr.c (parse_has_include): New function to parse __has_include__ builtin; (eval_token()): Use it. * files.c (_cpp_has_header()): New funtion to look for header; (open_file_failed()): Not an error to not find a header file for __has_include__. * identifiers.c (_cpp_init_hashtable()): Add entry for __has_include__. * pch.c (cpp_read_state): Lookup __has_include__. * traditional.c (enum ls, _cpp_scan_out_logical_line()): Walk through __has_include__ statements. 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * c-cppbuiltin.c (c_cpp_builtins()): Define language feature macros and the __has_header macro. 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * include/bits/basic_string.h: Add __cpp_lib feature test macro. * include/bits/stl_algobase.h: Ditto. * include/bits/stl_function.h: Ditto. * include/bits/unique_ptr.h: Ditto. * include/std/chrono: Ditto. * include/std/complex: Ditto. * include/std/iomanip: Ditto. * include/std/shared_mutex: Ditto. * include/std/tuple: Ditto. * include/std/type_traits: Ditto. * include/std/utility: Ditto. * testsuite/experimental/feat-cxx14.cc: New. * testsuite/experimental/feat-lib-fund.cc: New. * testsuite/20_util/declval/requirements/1_neg.cc: Adjust. * testsuite/20_util/duration/literals/range.cc: Adjust. * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Adjust. * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Adjust. * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Adjust. * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust. * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust. * testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust. * testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc: Adjust. 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * g++.dg/cpp1y/feat-cxx11-neg.C: New. * g++.dg/cpp1y/feat-cxx11.C: New. * g++.dg/cpp1y/feat-cxx14.C: New. * g++.dg/cpp1y/feat-cxx98.C: New. * g++.dg/cpp1y/feat-cxx98-neg.C: New. * g++.dg/cpp1y/phoobhar.h: New. * g++.dg/cpp1y/testinc/phoobhar.h: New. From-SVN: r215752
2014-10-01 13:49:23 +02:00
static cpp_num parse_has_include (cpp_reader *, enum include_type);
/* Token type abuse to create unary plus and minus operators. */
configure.ac: Check declarations for asprintf and vasprintf. * configure.ac: Check declarations for asprintf and vasprintf. * config.in: Regenerate. * configure: Likewise. * charset.c (conversion_loop): Use XRESIZEVEC. (convert_no_conversion): Likewise. (convert_using_iconv): Likewise. (init_iconv_desc): Cast return value of alloca. (cpp_host_to_exec_charset): Use XNEWVEC. (emit_numeric_escape): Use XRESIZEVEC. (cpp_interpret_string): Use XNEWVEC. (cpp_interpret_string): Use XRESIZEVEC. (_cpp_interpret_identifier): Cast return value of alloca. (_cpp_convert_input): Use XNEWVEC and XRESIZEVEC. * directives.c (glue_header_name): Use XNEWVEC and XRESIZEVEC. (parse_include): Use XNEWVEC. (insert_pragma_entry): Rename local variable "new" to "new_entry". (save_registered_pragmas): Cast return value of xmemdup. (destringize_and_run): Same for alloca. (parse_assertion): Likewise. (do_assert): Cast allocated storage to proper type. (cpp_define): Likewise. (_cpp_define_builtin): Likewise. (cpp_undef): Likewise. (handle_assertion): Likewise. (cpp_push_buffer): Rename local variable "new" to "new_buffer". * expr.c (CPP_UPLUS): Cast value to type cpp_ttype. (CPP_UMINUS): Likewise. (struct cpp_operator): Rename from struct operator. (_cpp_expand_op_stack): Use XRESIZEVEC. * files.c (pch_open_file): Use XNEWVEC. (pch_open_file): Use XRESIZEVEC. (read_file_guts): Use XNEWVEC and XRESIZEVEC. (dir_name_of_file): Use XNEWVEC. (make_cpp_file): Use XCNEW. (make_cpp_dir): Likewise. (allocate_file_hash_entries): USE XNEWVEC. (cpp_included): Cast return value of htab_find_with_hash. (append_file_to_dir): Use XNEWVEC. (read_filename_string): Likewise. Use XRESIZEVEC too. (read_name_map): Cast return value of alloca. Use XRESIZEVEC. (remap_filename): Use XNEWVEC. (struct pchf_entry): Move definition out of struct pchf_data. (_cpp_save_file_entries): Use XCNEWVAR. (_cpp_read_file_entries): Use XNEWVAR. * identifiers.c (alloc_node): Use XOBNEW. * init.c (cpp_create_reader): Use XCNEW. (cpp_init_builtins): Cast of b->value to enum builtin_type. (read_original_directory): Cast return value of alloca. * lex.c (add_line_note): Use XRESIZEVEC. (warn_about_normalization): Use XNEWVEC. (_cpp_lex_direct): Cast node->directive_index to (enum cpp_ttype). (new_buff): Use XNEWVEC. * line-map.c (linemap_add): Use XRESIZEVEC. * macro.c (builtin_macro): Cast return value of alloca. (paste_tokens): Likewise. (expand_arg): Use XNEWVEC and XRESIZEVEC. (_cpp_save_parameter): Use XRESIZEVEC. (create_iso_definition): Cast allocated storage to proper type. (_cpp_create_definition): Likewise. (cpp_macro_definition): Use XRESIZEVEC. * makedepend.c (add_clm): Use XNEW. (add_dir): Likewise. * mkdeps.c (munge): Use XNEWVEC. (deps_init): Use XCNEW. (deps_add_target): Use XRESIZEVEC. (deps_add_default_target): Cast return value of alloca. (deps_add_dep): Use XRESIZEVEC. (deps_add_vpath): Likewise. Use XNEWVEC too. (deps_restore): Likewise. * pch.c (save_idents): Use XNEW and XNEWVEC. (cpp_save_state): Use XNEW. (count_defs): Cast return value of htab_find. (write_defs): Likewise. (cpp_write_pch_deps): Use XNEWVEC. (collect_ht_nodes): Use XRESIZEVEC. (cpp_valid_state): Use XNEWVEC. (save_macros): Use XRESIZEVEC. Cast return value of xmemdup. * symtab.c (ht_create): Use XCNEW. (ht_lookup_with_hash): Cast return value of obstack_copy0. (ht_expand): Use XCNEWVEC. * system.h (HAVE_DESIGNATED_INITIALIZERS): False if __cplusplus. (bool): Do not define if __cplusplus. From-SVN: r100295
2005-05-28 17:52:48 +02:00
#define CPP_UPLUS ((enum cpp_ttype) (CPP_LAST_CPP_OP + 1))
#define CPP_UMINUS ((enum cpp_ttype) (CPP_LAST_CPP_OP + 2))
cppexp.c (parse_assertion): New. * cppexp.c (parse_assertion): New. (lex): Call it for CPP_HASH. Remove CPP_ASSERTION case. (_cpp_parse_expr): Remove case '#'. Don't set parsing_if_directive. * cpphash.c (collect_objlike_expansion, collect_funlike_expansion, collect_params, _cpp_create_definition): The list no longer has a trailing VSPACE token. * cpphash.h (enum node_type): Add T_ASSERTION. (struct hashnode): Remove aschain, add pred. (struct predicate): New. Update prototypes. * cpplex.c (expand_token_space): Handle both offset and nonoffset lists. (init_token_list, _cpp_free_token_list, _cpp_parse_assertion): Delete. (_cpp_init_toklist, _cpp_clear_toklist, _cpp_free_toklist, _cpp_slice_toklist, _cpp_squeeze_toklist, _cpp_equiv_tokens, _cpp_equiv_toklists): New. (_cpp_scan_line): Rename to _cpp_scan_until; add ability to stop at any single-character token, not just newline. (_cpp_lex_token): Remove special cases for #define and #if. (cpp_get_token): Expect # as a separate token type. Remove DIRECTIVE case. (_cpp_get_directive_token): Remove DIRECTIVE case. (_cpp_lex_line, _cpp_lex_file, _cpp_init_input_buffer): Update. * cpplib.c (_cpp_check_directive): Set dirno and SYNTAX_INCLUDE bit of flags, not dir_handler and dir_flags. (_cpp_handle_directive): Run # <number> through the same logic as normal directives. (do_define): Don't set parsing_define_directive. Use _cpp_scan_until. The list does not have a VSPACE at the end. (do_if): Save, clear, and restore only_seen_white around _cpp_parse_expr. (skip_if_group): s/CPP_DIRECTIVE/CPP_HASH/ (do_assert, do_unassert): Rewrite. * cpplib.h (TTYPE_TABLE): Remove CPP_ASSERTION. (LIST_OFFSET): New flag. (struct cpp_toklist): Replace dir_handler and dir_flags with dirno and flags. (struct cpp_reader): Remove parsing_if_directive and parsing_define_directive. From-SVN: r33984
2000-05-18 17:55:46 +02:00
/* With -O2, gcc appears to produce nice code, moving the error
message load and subsequent jump completely out of the main path. */
#define SYNTAX_ERROR(msgid) \
do { cpp_error (pfile, CPP_DL_ERROR, msgid); goto syntax_error; } while(0)
cppexp.c (parse_assertion): New. * cppexp.c (parse_assertion): New. (lex): Call it for CPP_HASH. Remove CPP_ASSERTION case. (_cpp_parse_expr): Remove case '#'. Don't set parsing_if_directive. * cpphash.c (collect_objlike_expansion, collect_funlike_expansion, collect_params, _cpp_create_definition): The list no longer has a trailing VSPACE token. * cpphash.h (enum node_type): Add T_ASSERTION. (struct hashnode): Remove aschain, add pred. (struct predicate): New. Update prototypes. * cpplex.c (expand_token_space): Handle both offset and nonoffset lists. (init_token_list, _cpp_free_token_list, _cpp_parse_assertion): Delete. (_cpp_init_toklist, _cpp_clear_toklist, _cpp_free_toklist, _cpp_slice_toklist, _cpp_squeeze_toklist, _cpp_equiv_tokens, _cpp_equiv_toklists): New. (_cpp_scan_line): Rename to _cpp_scan_until; add ability to stop at any single-character token, not just newline. (_cpp_lex_token): Remove special cases for #define and #if. (cpp_get_token): Expect # as a separate token type. Remove DIRECTIVE case. (_cpp_get_directive_token): Remove DIRECTIVE case. (_cpp_lex_line, _cpp_lex_file, _cpp_init_input_buffer): Update. * cpplib.c (_cpp_check_directive): Set dirno and SYNTAX_INCLUDE bit of flags, not dir_handler and dir_flags. (_cpp_handle_directive): Run # <number> through the same logic as normal directives. (do_define): Don't set parsing_define_directive. Use _cpp_scan_until. The list does not have a VSPACE at the end. (do_if): Save, clear, and restore only_seen_white around _cpp_parse_expr. (skip_if_group): s/CPP_DIRECTIVE/CPP_HASH/ (do_assert, do_unassert): Rewrite. * cpplib.h (TTYPE_TABLE): Remove CPP_ASSERTION. (LIST_OFFSET): New flag. (struct cpp_toklist): Replace dir_handler and dir_flags with dirno and flags. (struct cpp_reader): Remove parsing_if_directive and parsing_define_directive. From-SVN: r33984
2000-05-18 17:55:46 +02:00
#define SYNTAX_ERROR2(msgid, arg) \
do { cpp_error (pfile, CPP_DL_ERROR, msgid, arg); goto syntax_error; } \
while(0)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
#define SYNTAX_ERROR_AT(loc, msgid) \
do { cpp_error_with_line (pfile, CPP_DL_ERROR, (loc), 0, msgid); goto syntax_error; } \
while(0)
#define SYNTAX_ERROR2_AT(loc, msgid, arg) \
do { cpp_error_with_line (pfile, CPP_DL_ERROR, (loc), 0, msgid, arg); goto syntax_error; } \
while(0)
cppexp.c (parse_assertion): New. * cppexp.c (parse_assertion): New. (lex): Call it for CPP_HASH. Remove CPP_ASSERTION case. (_cpp_parse_expr): Remove case '#'. Don't set parsing_if_directive. * cpphash.c (collect_objlike_expansion, collect_funlike_expansion, collect_params, _cpp_create_definition): The list no longer has a trailing VSPACE token. * cpphash.h (enum node_type): Add T_ASSERTION. (struct hashnode): Remove aschain, add pred. (struct predicate): New. Update prototypes. * cpplex.c (expand_token_space): Handle both offset and nonoffset lists. (init_token_list, _cpp_free_token_list, _cpp_parse_assertion): Delete. (_cpp_init_toklist, _cpp_clear_toklist, _cpp_free_toklist, _cpp_slice_toklist, _cpp_squeeze_toklist, _cpp_equiv_tokens, _cpp_equiv_toklists): New. (_cpp_scan_line): Rename to _cpp_scan_until; add ability to stop at any single-character token, not just newline. (_cpp_lex_token): Remove special cases for #define and #if. (cpp_get_token): Expect # as a separate token type. Remove DIRECTIVE case. (_cpp_get_directive_token): Remove DIRECTIVE case. (_cpp_lex_line, _cpp_lex_file, _cpp_init_input_buffer): Update. * cpplib.c (_cpp_check_directive): Set dirno and SYNTAX_INCLUDE bit of flags, not dir_handler and dir_flags. (_cpp_handle_directive): Run # <number> through the same logic as normal directives. (do_define): Don't set parsing_define_directive. Use _cpp_scan_until. The list does not have a VSPACE at the end. (do_if): Save, clear, and restore only_seen_white around _cpp_parse_expr. (skip_if_group): s/CPP_DIRECTIVE/CPP_HASH/ (do_assert, do_unassert): Rewrite. * cpplib.h (TTYPE_TABLE): Remove CPP_ASSERTION. (LIST_OFFSET): New flag. (struct cpp_toklist): Replace dir_handler and dir_flags with dirno and flags. (struct cpp_reader): Remove parsing_if_directive and parsing_define_directive. From-SVN: r33984
2000-05-18 17:55:46 +02:00
/* Subroutine of cpp_classify_number. S points to a float suffix of
length LEN, possibly zero. Returns 0 for an invalid suffix, or a
flag vector describing the suffix. */
static unsigned int
interpret_float_suffix (cpp_reader *pfile, const uchar *s, size_t len)
{
size_t flags;
size_t f, d, l, w, q, i;
flags = 0;
f = d = l = w = q = i = 0;
/* Process decimal float suffixes, which are two letters starting
with d or D. Order and case are significant. */
if (len == 2 && (*s == 'd' || *s == 'D'))
{
bool uppercase = (*s == 'D');
switch (s[1])
{
case 'f': return (!uppercase ? (CPP_N_DFLOAT | CPP_N_SMALL): 0); break;
case 'F': return (uppercase ? (CPP_N_DFLOAT | CPP_N_SMALL) : 0); break;
case 'd': return (!uppercase ? (CPP_N_DFLOAT | CPP_N_MEDIUM): 0); break;
case 'D': return (uppercase ? (CPP_N_DFLOAT | CPP_N_MEDIUM) : 0); break;
case 'l': return (!uppercase ? (CPP_N_DFLOAT | CPP_N_LARGE) : 0); break;
case 'L': return (uppercase ? (CPP_N_DFLOAT | CPP_N_LARGE) : 0); break;
default:
/* Additional two-character suffixes beginning with D are not
for decimal float constants. */
break;
}
}
if (CPP_OPTION (pfile, ext_numeric_literals))
{
/* Recognize a fixed-point suffix. */
if (len != 0)
switch (s[len-1])
{
case 'k': case 'K': flags = CPP_N_ACCUM; break;
case 'r': case 'R': flags = CPP_N_FRACT; break;
default: break;
}
/* Continue processing a fixed-point suffix. The suffix is case
insensitive except for ll or LL. Order is significant. */
if (flags)
{
if (len == 1)
return flags;
len--;
if (*s == 'u' || *s == 'U')
{
flags |= CPP_N_UNSIGNED;
if (len == 1)
return flags;
len--;
s++;
}
switch (*s)
{
case 'h': case 'H':
if (len == 1)
return flags |= CPP_N_SMALL;
break;
case 'l':
if (len == 1)
return flags |= CPP_N_MEDIUM;
if (len == 2 && s[1] == 'l')
return flags |= CPP_N_LARGE;
break;
case 'L':
if (len == 1)
return flags |= CPP_N_MEDIUM;
if (len == 2 && s[1] == 'L')
return flags |= CPP_N_LARGE;
break;
default:
break;
}
/* Anything left at this point is invalid. */
return 0;
}
}
/* In any remaining valid suffix, the case and order don't matter. */
while (len--)
switch (s[len])
{
case 'f': case 'F': f++; break;
case 'd': case 'D': d++; break;
case 'l': case 'L': l++; break;
case 'w': case 'W': w++; break;
case 'q': case 'Q': q++; break;
case 'i': case 'I':
case 'j': case 'J': i++; break;
default:
return 0;
}
1995-03-16 22:59:07 +01:00
if (f + d + l + w + q > 1 || i > 1)
return 0;
if (i && !CPP_OPTION (pfile, ext_numeric_literals))
return 0;
if ((w || q) && !CPP_OPTION (pfile, ext_numeric_literals))
return 0;
return ((i ? CPP_N_IMAGINARY : 0)
| (f ? CPP_N_SMALL :
d ? CPP_N_MEDIUM :
l ? CPP_N_LARGE :
w ? CPP_N_MD_W :
q ? CPP_N_MD_Q : CPP_N_DEFAULT));
}
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
/* Return the classification flags for a float suffix. */
unsigned int
cpp_interpret_float_suffix (cpp_reader *pfile, const char *s, size_t len)
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
{
return interpret_float_suffix (pfile, (const unsigned char *)s, len);
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
}
/* Subroutine of cpp_classify_number. S points to an integer suffix
of length LEN, possibly zero. Returns 0 for an invalid suffix, or a
flag vector describing the suffix. */
static unsigned int
interpret_int_suffix (cpp_reader *pfile, const uchar *s, size_t len)
{
size_t u, l, i;
u = l = i = 0;
while (len--)
switch (s[len])
{
case 'u': case 'U': u++; break;
case 'i': case 'I':
case 'j': case 'J': i++; break;
case 'l': case 'L': l++;
/* If there are two Ls, they must be adjacent and the same case. */
if (l == 2 && s[len] != s[len + 1])
return 0;
break;
default:
return 0;
}
if (l > 2 || u > 1 || i > 1)
return 0;
if (i && !CPP_OPTION (pfile, ext_numeric_literals))
return 0;
return ((i ? CPP_N_IMAGINARY : 0)
| (u ? CPP_N_UNSIGNED : 0)
| ((l == 0) ? CPP_N_SMALL
: (l == 1) ? CPP_N_MEDIUM : CPP_N_LARGE));
}
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
/* Return the classification flags for an int suffix. */
unsigned int
cpp_interpret_int_suffix (cpp_reader *pfile, const char *s, size_t len)
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
{
return interpret_int_suffix (pfile, (const unsigned char *)s, len);
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
}
/* Return the string type corresponding to the the input user-defined string
literal type. If the input type is not a user-defined string literal
type return the input type. */
enum cpp_ttype
cpp_userdef_string_remove_type (enum cpp_ttype type)
{
if (type == CPP_STRING_USERDEF)
return CPP_STRING;
else if (type == CPP_WSTRING_USERDEF)
return CPP_WSTRING;
else if (type == CPP_STRING16_USERDEF)
return CPP_STRING16;
else if (type == CPP_STRING32_USERDEF)
return CPP_STRING32;
else if (type == CPP_UTF8STRING_USERDEF)
return CPP_UTF8STRING;
else
return type;
}
/* Return the user-defined string literal type corresponding to the input
string type. If the input type is not a string type return the input
type. */
enum cpp_ttype
cpp_userdef_string_add_type (enum cpp_ttype type)
{
if (type == CPP_STRING)
return CPP_STRING_USERDEF;
else if (type == CPP_WSTRING)
return CPP_WSTRING_USERDEF;
else if (type == CPP_STRING16)
return CPP_STRING16_USERDEF;
else if (type == CPP_STRING32)
return CPP_STRING32_USERDEF;
else if (type == CPP_UTF8STRING)
return CPP_UTF8STRING_USERDEF;
else
return type;
}
/* Return the char type corresponding to the the input user-defined char
literal type. If the input type is not a user-defined char literal
type return the input type. */
enum cpp_ttype
cpp_userdef_char_remove_type (enum cpp_ttype type)
{
if (type == CPP_CHAR_USERDEF)
return CPP_CHAR;
else if (type == CPP_WCHAR_USERDEF)
return CPP_WCHAR;
else if (type == CPP_CHAR16_USERDEF)
return CPP_CHAR16;
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
else if (type == CPP_CHAR32_USERDEF)
return CPP_CHAR32;
Implement N4197 - Adding u8 character literals libcpp: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * include/cpplib.h (UTF8CHAR, UTF8CHAR_USERDEF): New cpp tokens; (struct cpp_options): Add utf8_char_literals. * init.c (struct lang_flags): Add utf8_char_literals; (struct lang_flags lang_defaults): Add column for utf8_char_literals. * macro.c (stringify_arg()): Treat CPP_UTF8CHAR token; * expr.c (cpp_userdef_char_remove_type(), cpp_userdef_char_add_type()): Treat CPP_UTF8CHAR_USERDEF, CPP_UTF8CHAR tokens; (cpp_userdef_char_p()): Treat CPP_UTF8CHAR_USERDEF token; (eval_token(), _cpp_parse_expr()): Treat CPP_UTF8CHAR token. * lex.c (lex_string(), _cpp_lex_direct()): Include CPP_UTF8CHAR tokens. * charset.c (converter_for_type(), cpp_interpret_charconst()): Treat CPP_UTF8CHAR token. gcc/c-family: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * c-family/c-ada-spec.c (print_ada_macros()): Treat CPP_UTF8CHAR like CPP_CHAR. * c-family/c-common.c (c_parse_error()): print CPP_UTF8CHAR and CPP_UTF8CHAR_USERDEF tokens. * c-family/c-lex.c (c_lex_with_flags()): Treat CPP_UTF8CHAR_USERDEF and CPP_UTF8CHAR tokens; (lex_charconst()): Treat CPP_UTF8CHAR token. gcc/cp: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * parser.c (cp_parser_primary_expression()): Treat CPP_UTF8CHAR and CPP_UTF8CHAR_USERDEF tokens; (cp_parser_parenthesized_expression_list()): Treat CPP_UTF8CHAR token. gcc/testsuite: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * g++.dg/cpp1z/utf8.C: New. * g++.dg/cpp1z/utf8-neg.C: New. * g++.dg/cpp1z/udlit-utf8char.C: New. From-SVN: r225185
2015-06-30 14:58:48 +02:00
else if (type == CPP_UTF8CHAR_USERDEF)
return CPP_UTF8CHAR;
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
else
return type;
}
/* Return the user-defined char literal type corresponding to the input
char type. If the input type is not a char type return the input
type. */
enum cpp_ttype
cpp_userdef_char_add_type (enum cpp_ttype type)
{
if (type == CPP_CHAR)
return CPP_CHAR_USERDEF;
else if (type == CPP_WCHAR)
return CPP_WCHAR_USERDEF;
else if (type == CPP_CHAR16)
return CPP_CHAR16_USERDEF;
else if (type == CPP_CHAR32)
return CPP_CHAR32_USERDEF;
Implement N4197 - Adding u8 character literals libcpp: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * include/cpplib.h (UTF8CHAR, UTF8CHAR_USERDEF): New cpp tokens; (struct cpp_options): Add utf8_char_literals. * init.c (struct lang_flags): Add utf8_char_literals; (struct lang_flags lang_defaults): Add column for utf8_char_literals. * macro.c (stringify_arg()): Treat CPP_UTF8CHAR token; * expr.c (cpp_userdef_char_remove_type(), cpp_userdef_char_add_type()): Treat CPP_UTF8CHAR_USERDEF, CPP_UTF8CHAR tokens; (cpp_userdef_char_p()): Treat CPP_UTF8CHAR_USERDEF token; (eval_token(), _cpp_parse_expr()): Treat CPP_UTF8CHAR token. * lex.c (lex_string(), _cpp_lex_direct()): Include CPP_UTF8CHAR tokens. * charset.c (converter_for_type(), cpp_interpret_charconst()): Treat CPP_UTF8CHAR token. gcc/c-family: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * c-family/c-ada-spec.c (print_ada_macros()): Treat CPP_UTF8CHAR like CPP_CHAR. * c-family/c-common.c (c_parse_error()): print CPP_UTF8CHAR and CPP_UTF8CHAR_USERDEF tokens. * c-family/c-lex.c (c_lex_with_flags()): Treat CPP_UTF8CHAR_USERDEF and CPP_UTF8CHAR tokens; (lex_charconst()): Treat CPP_UTF8CHAR token. gcc/cp: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * parser.c (cp_parser_primary_expression()): Treat CPP_UTF8CHAR and CPP_UTF8CHAR_USERDEF tokens; (cp_parser_parenthesized_expression_list()): Treat CPP_UTF8CHAR token. gcc/testsuite: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * g++.dg/cpp1z/utf8.C: New. * g++.dg/cpp1z/utf8-neg.C: New. * g++.dg/cpp1z/udlit-utf8char.C: New. From-SVN: r225185
2015-06-30 14:58:48 +02:00
else if (type == CPP_UTF8CHAR)
return CPP_UTF8CHAR_USERDEF;
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
else
return type;
}
/* Return true if the token type is a user-defined string literal. */
bool
cpp_userdef_string_p (enum cpp_ttype type)
{
if (type == CPP_STRING_USERDEF
|| type == CPP_WSTRING_USERDEF
|| type == CPP_STRING16_USERDEF
|| type == CPP_STRING32_USERDEF
|| type == CPP_UTF8STRING_USERDEF)
return true;
else
return false;
}
/* Return true if the token type is a user-defined char literal. */
bool
cpp_userdef_char_p (enum cpp_ttype type)
{
if (type == CPP_CHAR_USERDEF
|| type == CPP_WCHAR_USERDEF
|| type == CPP_CHAR16_USERDEF
Implement N4197 - Adding u8 character literals libcpp: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * include/cpplib.h (UTF8CHAR, UTF8CHAR_USERDEF): New cpp tokens; (struct cpp_options): Add utf8_char_literals. * init.c (struct lang_flags): Add utf8_char_literals; (struct lang_flags lang_defaults): Add column for utf8_char_literals. * macro.c (stringify_arg()): Treat CPP_UTF8CHAR token; * expr.c (cpp_userdef_char_remove_type(), cpp_userdef_char_add_type()): Treat CPP_UTF8CHAR_USERDEF, CPP_UTF8CHAR tokens; (cpp_userdef_char_p()): Treat CPP_UTF8CHAR_USERDEF token; (eval_token(), _cpp_parse_expr()): Treat CPP_UTF8CHAR token. * lex.c (lex_string(), _cpp_lex_direct()): Include CPP_UTF8CHAR tokens. * charset.c (converter_for_type(), cpp_interpret_charconst()): Treat CPP_UTF8CHAR token. gcc/c-family: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * c-family/c-ada-spec.c (print_ada_macros()): Treat CPP_UTF8CHAR like CPP_CHAR. * c-family/c-common.c (c_parse_error()): print CPP_UTF8CHAR and CPP_UTF8CHAR_USERDEF tokens. * c-family/c-lex.c (c_lex_with_flags()): Treat CPP_UTF8CHAR_USERDEF and CPP_UTF8CHAR tokens; (lex_charconst()): Treat CPP_UTF8CHAR token. gcc/cp: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * parser.c (cp_parser_primary_expression()): Treat CPP_UTF8CHAR and CPP_UTF8CHAR_USERDEF tokens; (cp_parser_parenthesized_expression_list()): Treat CPP_UTF8CHAR token. gcc/testsuite: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * g++.dg/cpp1z/utf8.C: New. * g++.dg/cpp1z/utf8-neg.C: New. * g++.dg/cpp1z/udlit-utf8char.C: New. From-SVN: r225185
2015-06-30 14:58:48 +02:00
|| type == CPP_CHAR32_USERDEF
|| type == CPP_UTF8CHAR_USERDEF)
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
return true;
else
return false;
}
/* Extract the suffix from a user-defined literal string or char. */
const char *
cpp_get_userdef_suffix (const cpp_token *tok)
{
unsigned int len = tok->val.str.len;
const char *text = (const char *)tok->val.str.text;
char delim;
unsigned int i;
for (i = 0; i < len; ++i)
if (text[i] == '\'' || text[i] == '"')
break;
if (i == len)
return text + len;
delim = text[i];
for (i = len; i > 0; --i)
if (text[i - 1] == delim)
break;
return text + i;
}
/* Categorize numeric constants according to their field (integer,
floating point, or invalid), radix (decimal, octal, hexadecimal),
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
and type suffixes.
TOKEN is the token that represents the numeric constant to
classify.
In C++0X if UD_SUFFIX is non null it will be assigned
any unrecognized suffix for a user-defined literal.
VIRTUAL_LOCATION is the virtual location for TOKEN. */
unsigned int
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
cpp_classify_number (cpp_reader *pfile, const cpp_token *token,
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
const char **ud_suffix, source_location virtual_location)
{
const uchar *str = token->val.str.text;
const uchar *limit;
unsigned int max_digit, result, radix;
enum {NOT_FLOAT = 0, AFTER_POINT, AFTER_EXPON} float_flag;
bool seen_digit;
bool seen_digit_sep;
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
if (ud_suffix)
*ud_suffix = NULL;
/* If the lexer has done its job, length one can only be a single
digit. Fast-path this very common case. */
if (token->val.str.len == 1)
return CPP_N_INTEGER | CPP_N_SMALL | CPP_N_DECIMAL;
limit = str + token->val.str.len;
float_flag = NOT_FLOAT;
max_digit = 0;
radix = 10;
seen_digit = false;
seen_digit_sep = false;
/* First, interpret the radix. */
if (*str == '0')
{
radix = 8;
str++;
/* Require at least one hex digit to classify it as hex. */
if (*str == 'x' || *str == 'X')
{
if (str[1] == '.' || ISXDIGIT (str[1]))
{
radix = 16;
str++;
}
else if (DIGIT_SEP (str[1]))
SYNTAX_ERROR_AT (virtual_location,
"digit separator after base indicator");
}
else if (*str == 'b' || *str == 'B')
{
if (str[1] == '0' || str[1] == '1')
{
radix = 2;
str++;
}
else if (DIGIT_SEP (str[1]))
SYNTAX_ERROR_AT (virtual_location,
"digit separator after base indicator");
}
}
/* Now scan for a well-formed integer or float. */
for (;;)
{
unsigned int c = *str++;
if (ISDIGIT (c) || (ISXDIGIT (c) && radix == 16))
{
seen_digit_sep = false;
seen_digit = true;
c = hex_value (c);
if (c > max_digit)
max_digit = c;
}
else if (DIGIT_SEP (c))
{
if (seen_digit_sep)
SYNTAX_ERROR_AT (virtual_location, "adjacent digit separators");
seen_digit_sep = true;
}
else if (c == '.')
{
if (seen_digit_sep || DIGIT_SEP (*str))
SYNTAX_ERROR_AT (virtual_location,
"digit separator adjacent to decimal point");
seen_digit_sep = false;
if (float_flag == NOT_FLOAT)
float_flag = AFTER_POINT;
else
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR_AT (virtual_location,
"too many decimal points in number");
}
else if ((radix <= 10 && (c == 'e' || c == 'E'))
|| (radix == 16 && (c == 'p' || c == 'P')))
{
if (seen_digit_sep || DIGIT_SEP (*str))
SYNTAX_ERROR_AT (virtual_location,
"digit separator adjacent to exponent");
float_flag = AFTER_EXPON;
break;
}
else
{
/* Start of suffix. */
str--;
break;
}
}
if (seen_digit_sep && float_flag != AFTER_EXPON)
SYNTAX_ERROR_AT (virtual_location,
"digit separator outside digit sequence");
/* The suffix may be for decimal fixed-point constants without exponent. */
if (radix != 16 && float_flag == NOT_FLOAT)
{
result = interpret_float_suffix (pfile, str, limit - str);
if ((result & CPP_N_FRACT) || (result & CPP_N_ACCUM))
{
result |= CPP_N_FLOATING;
/* We need to restore the radix to 10, if the radix is 8. */
if (radix == 8)
radix = 10;
if (CPP_PEDANTIC (pfile))
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0,
"fixed-point constants are a GCC extension");
goto syntax_ok;
}
else
result = 0;
}
if (float_flag != NOT_FLOAT && radix == 8)
radix = 10;
if (max_digit >= radix)
{
if (radix == 2)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR2_AT (virtual_location,
"invalid digit \"%c\" in binary constant", '0' + max_digit);
else
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR2_AT (virtual_location,
"invalid digit \"%c\" in octal constant", '0' + max_digit);
}
if (float_flag != NOT_FLOAT)
{
if (radix == 2)
{
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_ERROR, virtual_location, 0,
"invalid prefix \"0b\" for floating constant");
return CPP_N_INVALID;
}
if (radix == 16 && !seen_digit)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR_AT (virtual_location,
"no digits in hexadecimal floating constant");
if (radix == 16 && CPP_PEDANTIC (pfile)
&& !CPP_OPTION (pfile, extended_numbers))
{
if (CPP_OPTION (pfile, cplusplus))
cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0,
"use of C++11 hexadecimal floating constant");
else
cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0,
"use of C99 hexadecimal floating constant");
}
if (float_flag == AFTER_EXPON)
{
if (*str == '+' || *str == '-')
str++;
/* Exponent is decimal, even if string is a hex float. */
if (!ISDIGIT (*str))
{
if (DIGIT_SEP (*str))
SYNTAX_ERROR_AT (virtual_location,
"digit separator adjacent to exponent");
else
SYNTAX_ERROR_AT (virtual_location, "exponent has no digits");
}
do
{
seen_digit_sep = DIGIT_SEP (*str);
str++;
}
while (ISDIGIT (*str) || DIGIT_SEP (*str));
}
else if (radix == 16)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR_AT (virtual_location,
"hexadecimal floating constants require an exponent");
if (seen_digit_sep)
SYNTAX_ERROR_AT (virtual_location,
"digit separator outside digit sequence");
result = interpret_float_suffix (pfile, str, limit - str);
if (result == 0)
{
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
if (CPP_OPTION (pfile, user_literals))
{
if (ud_suffix)
*ud_suffix = (const char *) str;
result = CPP_N_LARGE | CPP_N_USERDEF;
}
else
{
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_ERROR, virtual_location, 0,
"invalid suffix \"%.*s\" on floating constant",
(int) (limit - str), str);
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
return CPP_N_INVALID;
}
}
/* Traditional C didn't accept any floating suffixes. */
if (limit != str
&& CPP_WTRADITIONAL (pfile)
&& ! cpp_sys_macro_p (pfile))
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_warning_with_line (pfile, CPP_W_TRADITIONAL, virtual_location, 0,
"traditional C rejects the \"%.*s\" suffix",
(int) (limit - str), str);
/* A suffix for double is a GCC extension via decimal float support.
If the suffix also specifies an imaginary value we'll catch that
later. */
if ((result == CPP_N_MEDIUM) && CPP_PEDANTIC (pfile))
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0,
"suffix for double constant is a GCC extension");
/* Radix must be 10 for decimal floats. */
if ((result & CPP_N_DFLOAT) && radix != 10)
{
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_ERROR, virtual_location, 0,
"invalid suffix \"%.*s\" with hexadecimal floating constant",
(int) (limit - str), str);
return CPP_N_INVALID;
}
if ((result & (CPP_N_FRACT | CPP_N_ACCUM)) && CPP_PEDANTIC (pfile))
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0,
"fixed-point constants are a GCC extension");
if ((result & CPP_N_DFLOAT) && CPP_PEDANTIC (pfile))
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0,
"decimal float constants are a GCC extension");
result |= CPP_N_FLOATING;
}
else
{
result = interpret_int_suffix (pfile, str, limit - str);
if (result == 0)
{
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
if (CPP_OPTION (pfile, user_literals))
{
if (ud_suffix)
*ud_suffix = (const char *) str;
result = CPP_N_UNSIGNED | CPP_N_LARGE | CPP_N_USERDEF;
}
else
{
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_ERROR, virtual_location, 0,
"invalid suffix \"%.*s\" on integer constant",
(int) (limit - str), str);
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
return CPP_N_INVALID;
}
}
/* Traditional C only accepted the 'L' suffix.
Suppress warning about 'LL' with -Wno-long-long. */
if (CPP_WTRADITIONAL (pfile) && ! cpp_sys_macro_p (pfile))
{
int u_or_i = (result & (CPP_N_UNSIGNED|CPP_N_IMAGINARY));
diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * c-tree.h (c_cpp_error): Add warning reason argument. * opts.c (_warning_as_error_callback): New. (register_warning_as_error_callback): Store callback for warnings enabled via enable_warning_as_error. (enable_warning_as_error): Call callback, minor code tidy. * opts.h (register_warning_as_error_callback): Declare. * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in response to -Werror=. (c_common_init_options): Register warning_as_error_callback in opts.c. * common.opt: Add -Wno-cpp option. * c-common.c (struct reason_option_codes_t): Map cpp warning reason codes to gcc option indexes. * (c_option_controlling_cpp_error): New function, lookup the gcc option index for a cpp warning reason code. * (c_cpp_error): Add warning reason argument, call c_option_controlling_cpp_error for diagnostic_override_option_index. * doc/invoke.texi: Document -Wno-cpp. * cpp.c (cb_cpp_error): Add warning reason argument, set a value for diagnostic_override_option_index if CPP_W_WARNING_DIRECTIVE. * directives.c (do_diagnostic): Add warning reason argument, call appropriate error reporting function for code. (directive_diagnostics): Call specific warning functions with warning reason where appropriate. (do_error, do_warning, do_pragma_dependency): Add warning reason argument to do_diagnostic calls. * macro.c (_cpp_warn_if_unused_macro, enter_macro_context, _cpp_create_definition): Call specific warning functions with warning reason where appropriate. * Makefile.in: Add new diagnostic functions to gettext translations. * include/cpplib.h (struct cpp_callbacks): Add warning reason code to error callback. (CPP_DL_WARNING, CPP_DL_WARNING_SYSHDR, CPP_DL_PEDWARN, CPP_DL_ERROR, CPP_DL_ICE, CPP_DL_NOTE, CPP_DL_FATAL): Replace macros with enums. (CPP_W_NONE, CPP_W_DEPRECATED, CPP_W_COMMENTS, CPP_W_MISSING_INCLUDE_DIRS, CPP_W_TRIGRAPHS, CPP_W_MULTICHAR, CPP_W_TRADITIONAL, CPP_W_LONG_LONG, CPP_W_ENDIF_LABELS, CPP_W_NUM_SIGN_CHANGE, CPP_W_VARIADIC_MACROS, CPP_W_BUILTIN_MACRO_REDEFINED, CPP_W_DOLLARS, CPP_W_UNDEF, CPP_W_UNUSED_MACROS, CPP_W_CXX_OPERATOR_NAMES, CPP_W_NORMALIZE, CPP_W_INVALID_PCH, CPP_W_WARNING_DIRECTIVE): New enums for cpp warning reason codes. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * pch.c (cpp_valid_state): Call specific warning functions with warning reason where appropriate. * errors.c (cpp_diagnostic, cpp_diagnostic_with_line): New central diagnostic handlers. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * expr.c (cpp_classify_number, eval_token, num_unary_op): Call specific warning functions with warning reason where appropriate. * lex.c (_cpp_process_line_notes, _cpp_skip_block_comment, warn_about_normalization, lex_identifier_intern, lex_identifier, _cpp_lex_direct): Ditto. * charset.c (_cpp_valid_ucn, convert_hex, convert_escape, narrow_str_to_charconst): Ditto. * gcc.dg/cpp/warn-undef-2.c: New. * gcc.dg/cpp/warn-traditional-2.c: New. * gcc.dg/cpp/warn-comments-2.c: New. * gcc.dg/cpp/warning-directive-1.c: New. * gcc.dg/cpp/warn-long-long.c: New. * gcc.dg/cpp/warn-traditional.c: New. * gcc.dg/cpp/warn-variadic-2.c: New. * gcc.dg/cpp/warn-undef.c: New. * gcc.dg/cpp/warn-normalized-1.c: New. * gcc.dg/cpp/warning-directive-2.c: New. * gcc.dg/cpp/warn-long-long-2.c: New. * gcc.dg/cpp/warn-variadic.c: New. * gcc.dg/cpp/warn-normalized-2.c: New. * gcc.dg/cpp/warning-directive-3.c: New. * gcc.dg/cpp/warn-deprecated-2.c: New. * gcc.dg/cpp/warn-trigraphs-1.c: New. * gcc.dg/cpp/warn-multichar-2.c: New. * gcc.dg/cpp/warn-normalized-3.c: New. * gcc.dg/cpp/warning-directive-4.c: New. * gcc.dg/cpp/warn-unused-macros.c: New. * gcc.dg/cpp/warn-trigraphs-2.c: New. * gcc.dg/cpp/warn-cxx-compat-2.c: New. * gcc.dg/cpp/warn-cxx-compat.c: New. * gcc.dg/cpp/warn-redefined.c: New. * gcc.dg/cpp/warn-trigraphs-3.c: New. * gcc.dg/cpp/warn-unused-macros-2.c: New. * gcc.dg/cpp/warn-deprecated.c: New. * gcc.dg/cpp/warn-trigraphs-4.c: New. * gcc.dg/cpp/warn-redefined-2.c: New. * gcc.dg/cpp/warn-comments.c: New. * gcc.dg/cpp/warn-multichar.c: New. * g++.dg/cpp/warning-directive-1.C: New. * g++.dg/cpp/warning-directive-2.C: New. * g++.dg/cpp/warning-directive-3.C: New. * g++.dg/cpp/warning-directive-4.C: New. * gfortran.dg/warning-directive-1.F90: New. * gfortran.dg/warning-directive-3.F90: New. * gfortran.dg/warning-directive-2.F90: New. * gfortran.dg/warning-directive-4.F90: New. From-SVN: r158079
2010-04-07 19:18:10 +02:00
int large = (result & CPP_N_WIDTH) == CPP_N_LARGE
optc-gen.awk: Generate global_options initializer instead of individual variables. gcc: * optc-gen.awk: Generate global_options initializer instead of individual variables. Add x_ prefix to names of structure members. * opth-gen.awk: Generate gcc_options structure. Add x_ prefix to names of structure members. * doc/tm.texi.in (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Document. * doc/tm.texi: Regenerate. * alias.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * builtins.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER. * c-parser.c (disable_extension_diagnostics, restore_extension_diagnostics): Update names of cpp_options members. * combine.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * common.opt (fcompare-debug-second): Don't use Var. * config/alpha/alpha.h (target_flags): Remove. * config/arm/arm.h (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Define. * config/bfin/bfin.h (target_flags): Remove. * config/cris/cris.h (target_flags): Remove. * config/i386/i386-c.c (ix86_pragma_target_parse): Update names of cl_target_option members. * config/i386/i386.c (ix86_force_align_arg_pointer): Remove. (ix86_function_specific_print, ix86_valid_target_attribute_tree, ix86_can_inline_p): Update names of cl_target_option members. * config/i386/i386.h (ix86_isa_flags): Remove. * config/lm32/lm32.h (target_flags): Remove. * config/mcore/mcore.h (mcore_stack_increment): Remove. * config/mcore/mcore.md (addsi3): Remove extern declaration of flag_omit_frame_pointer. * config/mep/mep.h (target_flags): Remove. * config/mips/mips.h (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Define. * config/mmix/mmix.h (target_flags): Remove. * config/rs6000/rs6000.h (rs6000_xilinx_fpu, flag_pic, flag_expensive_optimizations): Remove. * config/s390/s390.h (flag_pic): Remove. * config/score/score-conv.h (target_flags): Remove. * config/sh/sh.h (sh_fixed_range_str): Remove. * config/spu/spu.h (target_flags, spu_fixed_range_string): Remove. * dbxout.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER * df-scan.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * diagnostic.c (diagnostic_initialize): Update names of diagnostic_context members. * diagnostic.h (diagnostic_context): Rename inhibit_warnings and warn_system_headers. (diagnostic_report_warnings_p): Update for new names. * dwarf2out.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER * emit-rtl.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER and HARD_FRAME_POINTER_IS_ARG_POINTER. * flags.h (flag_compare_debug): Declare. * ira.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * opts.c (flag_compare_debug): Define. (common_handle_option): Update names of diagnostic_context members. Handle -fcompare-debug-second. (fast_math_flags_struct_set_p): Update names of cl_optimization members. * reginfo.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * regrename.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * reload.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * reload1.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * resource.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * rtl.h (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Define and use. * sel-sched.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * stmt.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER. gcc/c-family: * c-common.c (c_cpp_error): Update names of diagnostic_context members. * c-cppbuiltin.c (c_cpp_builtins_optimize_pragma): Update names of cl_optimization members. * c-opts.c (warning_as_error_callback, c_common_handle_option, sanitize_cpp_opts, finish_options): Update names of cpp_options members. gcc/fortran: * cpp.c (cpp_define_builtins): Update names of gfc_option_t members. (gfc_cpp_post_options): Update names of cpp_options members. (cb_cpp_error): Update names of diagnostic_context members. * f95-lang.c (gfc_init_builtin_functions): Update names of gfc_option_t members. * gfortran.h (gfc_option_t): Rename warn_conversion and flag_openmp. * intrinsic.c (gfc_convert_type_warn): Update names of gfc_option_t members. * options.c (gfc_init_options, gfc_post_options, set_Wall, gfc_handle_option): Update names of gfc_option_t members. * parse.c (next_free, next_fixed): Update names of gfc_option_t members. * scanner.c (pedantic): Remove extern declaration. (skip_free_comments, skip_fixed_comments, include_line): Update names of gfc_option_t members. * trans-decl.c (gfc_generate_function_code): Update names of gfc_option_t members. gcc/java: * java-tree.h (flag_filelist_file, flag_assert, flag_jni, flag_force_classes_archive_check, flag_redundant, flag_newer, flag_use_divide_subroutine, flag_use_atomic_builtins, flag_use_boehm_gc, flag_hash_synchronization, flag_check_references, flag_optimize_sci, flag_indirect_classes, flag_indirect_dispatch, flag_store_check, flag_reduced_reflection): Remove. * jcf-dump.c (flag_newer): Remove. * jcf.h (quiet_flag): Remove. * parse.h (quiet_flag): Remove. libcpp: * include/cpplib.h (cpp_options): Rename warn_deprecated, warn_traditional, warn_long_long and pedantic. * directives.c (directive_diagnostics, _cpp_handle_directive): Update names of cpp_options members. * expr.c (cpp_classify_number, eval_token): Update names of cpp_options members. * init.c (cpp_create_reader, post_options): Update names of cpp_options members. * internal.h (CPP_PEDANTIC, CPP_WTRADITIONAL): Update names of cpp_options members. * macro.c (parse_params): Update names of cpp_options members. From-SVN: r164723
2010-09-29 16:49:14 +02:00
&& CPP_OPTION (pfile, cpp_warn_long_long);
diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * c-tree.h (c_cpp_error): Add warning reason argument. * opts.c (_warning_as_error_callback): New. (register_warning_as_error_callback): Store callback for warnings enabled via enable_warning_as_error. (enable_warning_as_error): Call callback, minor code tidy. * opts.h (register_warning_as_error_callback): Declare. * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in response to -Werror=. (c_common_init_options): Register warning_as_error_callback in opts.c. * common.opt: Add -Wno-cpp option. * c-common.c (struct reason_option_codes_t): Map cpp warning reason codes to gcc option indexes. * (c_option_controlling_cpp_error): New function, lookup the gcc option index for a cpp warning reason code. * (c_cpp_error): Add warning reason argument, call c_option_controlling_cpp_error for diagnostic_override_option_index. * doc/invoke.texi: Document -Wno-cpp. * cpp.c (cb_cpp_error): Add warning reason argument, set a value for diagnostic_override_option_index if CPP_W_WARNING_DIRECTIVE. * directives.c (do_diagnostic): Add warning reason argument, call appropriate error reporting function for code. (directive_diagnostics): Call specific warning functions with warning reason where appropriate. (do_error, do_warning, do_pragma_dependency): Add warning reason argument to do_diagnostic calls. * macro.c (_cpp_warn_if_unused_macro, enter_macro_context, _cpp_create_definition): Call specific warning functions with warning reason where appropriate. * Makefile.in: Add new diagnostic functions to gettext translations. * include/cpplib.h (struct cpp_callbacks): Add warning reason code to error callback. (CPP_DL_WARNING, CPP_DL_WARNING_SYSHDR, CPP_DL_PEDWARN, CPP_DL_ERROR, CPP_DL_ICE, CPP_DL_NOTE, CPP_DL_FATAL): Replace macros with enums. (CPP_W_NONE, CPP_W_DEPRECATED, CPP_W_COMMENTS, CPP_W_MISSING_INCLUDE_DIRS, CPP_W_TRIGRAPHS, CPP_W_MULTICHAR, CPP_W_TRADITIONAL, CPP_W_LONG_LONG, CPP_W_ENDIF_LABELS, CPP_W_NUM_SIGN_CHANGE, CPP_W_VARIADIC_MACROS, CPP_W_BUILTIN_MACRO_REDEFINED, CPP_W_DOLLARS, CPP_W_UNDEF, CPP_W_UNUSED_MACROS, CPP_W_CXX_OPERATOR_NAMES, CPP_W_NORMALIZE, CPP_W_INVALID_PCH, CPP_W_WARNING_DIRECTIVE): New enums for cpp warning reason codes. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * pch.c (cpp_valid_state): Call specific warning functions with warning reason where appropriate. * errors.c (cpp_diagnostic, cpp_diagnostic_with_line): New central diagnostic handlers. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * expr.c (cpp_classify_number, eval_token, num_unary_op): Call specific warning functions with warning reason where appropriate. * lex.c (_cpp_process_line_notes, _cpp_skip_block_comment, warn_about_normalization, lex_identifier_intern, lex_identifier, _cpp_lex_direct): Ditto. * charset.c (_cpp_valid_ucn, convert_hex, convert_escape, narrow_str_to_charconst): Ditto. * gcc.dg/cpp/warn-undef-2.c: New. * gcc.dg/cpp/warn-traditional-2.c: New. * gcc.dg/cpp/warn-comments-2.c: New. * gcc.dg/cpp/warning-directive-1.c: New. * gcc.dg/cpp/warn-long-long.c: New. * gcc.dg/cpp/warn-traditional.c: New. * gcc.dg/cpp/warn-variadic-2.c: New. * gcc.dg/cpp/warn-undef.c: New. * gcc.dg/cpp/warn-normalized-1.c: New. * gcc.dg/cpp/warning-directive-2.c: New. * gcc.dg/cpp/warn-long-long-2.c: New. * gcc.dg/cpp/warn-variadic.c: New. * gcc.dg/cpp/warn-normalized-2.c: New. * gcc.dg/cpp/warning-directive-3.c: New. * gcc.dg/cpp/warn-deprecated-2.c: New. * gcc.dg/cpp/warn-trigraphs-1.c: New. * gcc.dg/cpp/warn-multichar-2.c: New. * gcc.dg/cpp/warn-normalized-3.c: New. * gcc.dg/cpp/warning-directive-4.c: New. * gcc.dg/cpp/warn-unused-macros.c: New. * gcc.dg/cpp/warn-trigraphs-2.c: New. * gcc.dg/cpp/warn-cxx-compat-2.c: New. * gcc.dg/cpp/warn-cxx-compat.c: New. * gcc.dg/cpp/warn-redefined.c: New. * gcc.dg/cpp/warn-trigraphs-3.c: New. * gcc.dg/cpp/warn-unused-macros-2.c: New. * gcc.dg/cpp/warn-deprecated.c: New. * gcc.dg/cpp/warn-trigraphs-4.c: New. * gcc.dg/cpp/warn-redefined-2.c: New. * gcc.dg/cpp/warn-comments.c: New. * gcc.dg/cpp/warn-multichar.c: New. * g++.dg/cpp/warning-directive-1.C: New. * g++.dg/cpp/warning-directive-2.C: New. * g++.dg/cpp/warning-directive-3.C: New. * g++.dg/cpp/warning-directive-4.C: New. * gfortran.dg/warning-directive-1.F90: New. * gfortran.dg/warning-directive-3.F90: New. * gfortran.dg/warning-directive-2.F90: New. * gfortran.dg/warning-directive-4.F90: New. From-SVN: r158079
2010-04-07 19:18:10 +02:00
if (u_or_i || large)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_warning_with_line (pfile, large ? CPP_W_LONG_LONG : CPP_W_TRADITIONAL,
virtual_location, 0,
"traditional C rejects the \"%.*s\" suffix",
(int) (limit - str), str);
}
if ((result & CPP_N_WIDTH) == CPP_N_LARGE
optc-gen.awk: Generate global_options initializer instead of individual variables. gcc: * optc-gen.awk: Generate global_options initializer instead of individual variables. Add x_ prefix to names of structure members. * opth-gen.awk: Generate gcc_options structure. Add x_ prefix to names of structure members. * doc/tm.texi.in (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Document. * doc/tm.texi: Regenerate. * alias.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * builtins.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER. * c-parser.c (disable_extension_diagnostics, restore_extension_diagnostics): Update names of cpp_options members. * combine.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * common.opt (fcompare-debug-second): Don't use Var. * config/alpha/alpha.h (target_flags): Remove. * config/arm/arm.h (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Define. * config/bfin/bfin.h (target_flags): Remove. * config/cris/cris.h (target_flags): Remove. * config/i386/i386-c.c (ix86_pragma_target_parse): Update names of cl_target_option members. * config/i386/i386.c (ix86_force_align_arg_pointer): Remove. (ix86_function_specific_print, ix86_valid_target_attribute_tree, ix86_can_inline_p): Update names of cl_target_option members. * config/i386/i386.h (ix86_isa_flags): Remove. * config/lm32/lm32.h (target_flags): Remove. * config/mcore/mcore.h (mcore_stack_increment): Remove. * config/mcore/mcore.md (addsi3): Remove extern declaration of flag_omit_frame_pointer. * config/mep/mep.h (target_flags): Remove. * config/mips/mips.h (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Define. * config/mmix/mmix.h (target_flags): Remove. * config/rs6000/rs6000.h (rs6000_xilinx_fpu, flag_pic, flag_expensive_optimizations): Remove. * config/s390/s390.h (flag_pic): Remove. * config/score/score-conv.h (target_flags): Remove. * config/sh/sh.h (sh_fixed_range_str): Remove. * config/spu/spu.h (target_flags, spu_fixed_range_string): Remove. * dbxout.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER * df-scan.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * diagnostic.c (diagnostic_initialize): Update names of diagnostic_context members. * diagnostic.h (diagnostic_context): Rename inhibit_warnings and warn_system_headers. (diagnostic_report_warnings_p): Update for new names. * dwarf2out.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER * emit-rtl.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER and HARD_FRAME_POINTER_IS_ARG_POINTER. * flags.h (flag_compare_debug): Declare. * ira.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * opts.c (flag_compare_debug): Define. (common_handle_option): Update names of diagnostic_context members. Handle -fcompare-debug-second. (fast_math_flags_struct_set_p): Update names of cl_optimization members. * reginfo.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * regrename.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * reload.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * reload1.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * resource.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * rtl.h (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Define and use. * sel-sched.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * stmt.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER. gcc/c-family: * c-common.c (c_cpp_error): Update names of diagnostic_context members. * c-cppbuiltin.c (c_cpp_builtins_optimize_pragma): Update names of cl_optimization members. * c-opts.c (warning_as_error_callback, c_common_handle_option, sanitize_cpp_opts, finish_options): Update names of cpp_options members. gcc/fortran: * cpp.c (cpp_define_builtins): Update names of gfc_option_t members. (gfc_cpp_post_options): Update names of cpp_options members. (cb_cpp_error): Update names of diagnostic_context members. * f95-lang.c (gfc_init_builtin_functions): Update names of gfc_option_t members. * gfortran.h (gfc_option_t): Rename warn_conversion and flag_openmp. * intrinsic.c (gfc_convert_type_warn): Update names of gfc_option_t members. * options.c (gfc_init_options, gfc_post_options, set_Wall, gfc_handle_option): Update names of gfc_option_t members. * parse.c (next_free, next_fixed): Update names of gfc_option_t members. * scanner.c (pedantic): Remove extern declaration. (skip_free_comments, skip_fixed_comments, include_line): Update names of gfc_option_t members. * trans-decl.c (gfc_generate_function_code): Update names of gfc_option_t members. gcc/java: * java-tree.h (flag_filelist_file, flag_assert, flag_jni, flag_force_classes_archive_check, flag_redundant, flag_newer, flag_use_divide_subroutine, flag_use_atomic_builtins, flag_use_boehm_gc, flag_hash_synchronization, flag_check_references, flag_optimize_sci, flag_indirect_classes, flag_indirect_dispatch, flag_store_check, flag_reduced_reflection): Remove. * jcf-dump.c (flag_newer): Remove. * jcf.h (quiet_flag): Remove. * parse.h (quiet_flag): Remove. libcpp: * include/cpplib.h (cpp_options): Rename warn_deprecated, warn_traditional, warn_long_long and pedantic. * directives.c (directive_diagnostics, _cpp_handle_directive): Update names of cpp_options members. * expr.c (cpp_classify_number, eval_token): Update names of cpp_options members. * init.c (cpp_create_reader, post_options): Update names of cpp_options members. * internal.h (CPP_PEDANTIC, CPP_WTRADITIONAL): Update names of cpp_options members. * macro.c (parse_params): Update names of cpp_options members. From-SVN: r164723
2010-09-29 16:49:14 +02:00
&& CPP_OPTION (pfile, cpp_warn_long_long))
diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * c-tree.h (c_cpp_error): Add warning reason argument. * opts.c (_warning_as_error_callback): New. (register_warning_as_error_callback): Store callback for warnings enabled via enable_warning_as_error. (enable_warning_as_error): Call callback, minor code tidy. * opts.h (register_warning_as_error_callback): Declare. * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in response to -Werror=. (c_common_init_options): Register warning_as_error_callback in opts.c. * common.opt: Add -Wno-cpp option. * c-common.c (struct reason_option_codes_t): Map cpp warning reason codes to gcc option indexes. * (c_option_controlling_cpp_error): New function, lookup the gcc option index for a cpp warning reason code. * (c_cpp_error): Add warning reason argument, call c_option_controlling_cpp_error for diagnostic_override_option_index. * doc/invoke.texi: Document -Wno-cpp. * cpp.c (cb_cpp_error): Add warning reason argument, set a value for diagnostic_override_option_index if CPP_W_WARNING_DIRECTIVE. * directives.c (do_diagnostic): Add warning reason argument, call appropriate error reporting function for code. (directive_diagnostics): Call specific warning functions with warning reason where appropriate. (do_error, do_warning, do_pragma_dependency): Add warning reason argument to do_diagnostic calls. * macro.c (_cpp_warn_if_unused_macro, enter_macro_context, _cpp_create_definition): Call specific warning functions with warning reason where appropriate. * Makefile.in: Add new diagnostic functions to gettext translations. * include/cpplib.h (struct cpp_callbacks): Add warning reason code to error callback. (CPP_DL_WARNING, CPP_DL_WARNING_SYSHDR, CPP_DL_PEDWARN, CPP_DL_ERROR, CPP_DL_ICE, CPP_DL_NOTE, CPP_DL_FATAL): Replace macros with enums. (CPP_W_NONE, CPP_W_DEPRECATED, CPP_W_COMMENTS, CPP_W_MISSING_INCLUDE_DIRS, CPP_W_TRIGRAPHS, CPP_W_MULTICHAR, CPP_W_TRADITIONAL, CPP_W_LONG_LONG, CPP_W_ENDIF_LABELS, CPP_W_NUM_SIGN_CHANGE, CPP_W_VARIADIC_MACROS, CPP_W_BUILTIN_MACRO_REDEFINED, CPP_W_DOLLARS, CPP_W_UNDEF, CPP_W_UNUSED_MACROS, CPP_W_CXX_OPERATOR_NAMES, CPP_W_NORMALIZE, CPP_W_INVALID_PCH, CPP_W_WARNING_DIRECTIVE): New enums for cpp warning reason codes. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * pch.c (cpp_valid_state): Call specific warning functions with warning reason where appropriate. * errors.c (cpp_diagnostic, cpp_diagnostic_with_line): New central diagnostic handlers. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * expr.c (cpp_classify_number, eval_token, num_unary_op): Call specific warning functions with warning reason where appropriate. * lex.c (_cpp_process_line_notes, _cpp_skip_block_comment, warn_about_normalization, lex_identifier_intern, lex_identifier, _cpp_lex_direct): Ditto. * charset.c (_cpp_valid_ucn, convert_hex, convert_escape, narrow_str_to_charconst): Ditto. * gcc.dg/cpp/warn-undef-2.c: New. * gcc.dg/cpp/warn-traditional-2.c: New. * gcc.dg/cpp/warn-comments-2.c: New. * gcc.dg/cpp/warning-directive-1.c: New. * gcc.dg/cpp/warn-long-long.c: New. * gcc.dg/cpp/warn-traditional.c: New. * gcc.dg/cpp/warn-variadic-2.c: New. * gcc.dg/cpp/warn-undef.c: New. * gcc.dg/cpp/warn-normalized-1.c: New. * gcc.dg/cpp/warning-directive-2.c: New. * gcc.dg/cpp/warn-long-long-2.c: New. * gcc.dg/cpp/warn-variadic.c: New. * gcc.dg/cpp/warn-normalized-2.c: New. * gcc.dg/cpp/warning-directive-3.c: New. * gcc.dg/cpp/warn-deprecated-2.c: New. * gcc.dg/cpp/warn-trigraphs-1.c: New. * gcc.dg/cpp/warn-multichar-2.c: New. * gcc.dg/cpp/warn-normalized-3.c: New. * gcc.dg/cpp/warning-directive-4.c: New. * gcc.dg/cpp/warn-unused-macros.c: New. * gcc.dg/cpp/warn-trigraphs-2.c: New. * gcc.dg/cpp/warn-cxx-compat-2.c: New. * gcc.dg/cpp/warn-cxx-compat.c: New. * gcc.dg/cpp/warn-redefined.c: New. * gcc.dg/cpp/warn-trigraphs-3.c: New. * gcc.dg/cpp/warn-unused-macros-2.c: New. * gcc.dg/cpp/warn-deprecated.c: New. * gcc.dg/cpp/warn-trigraphs-4.c: New. * gcc.dg/cpp/warn-redefined-2.c: New. * gcc.dg/cpp/warn-comments.c: New. * gcc.dg/cpp/warn-multichar.c: New. * g++.dg/cpp/warning-directive-1.C: New. * g++.dg/cpp/warning-directive-2.C: New. * g++.dg/cpp/warning-directive-3.C: New. * g++.dg/cpp/warning-directive-4.C: New. * gfortran.dg/warning-directive-1.F90: New. * gfortran.dg/warning-directive-3.F90: New. * gfortran.dg/warning-directive-2.F90: New. * gfortran.dg/warning-directive-4.F90: New. From-SVN: r158079
2010-04-07 19:18:10 +02:00
{
const char *message = CPP_OPTION (pfile, cplusplus)
? N_("use of C++11 long long integer constant")
diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * c-tree.h (c_cpp_error): Add warning reason argument. * opts.c (_warning_as_error_callback): New. (register_warning_as_error_callback): Store callback for warnings enabled via enable_warning_as_error. (enable_warning_as_error): Call callback, minor code tidy. * opts.h (register_warning_as_error_callback): Declare. * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in response to -Werror=. (c_common_init_options): Register warning_as_error_callback in opts.c. * common.opt: Add -Wno-cpp option. * c-common.c (struct reason_option_codes_t): Map cpp warning reason codes to gcc option indexes. * (c_option_controlling_cpp_error): New function, lookup the gcc option index for a cpp warning reason code. * (c_cpp_error): Add warning reason argument, call c_option_controlling_cpp_error for diagnostic_override_option_index. * doc/invoke.texi: Document -Wno-cpp. * cpp.c (cb_cpp_error): Add warning reason argument, set a value for diagnostic_override_option_index if CPP_W_WARNING_DIRECTIVE. * directives.c (do_diagnostic): Add warning reason argument, call appropriate error reporting function for code. (directive_diagnostics): Call specific warning functions with warning reason where appropriate. (do_error, do_warning, do_pragma_dependency): Add warning reason argument to do_diagnostic calls. * macro.c (_cpp_warn_if_unused_macro, enter_macro_context, _cpp_create_definition): Call specific warning functions with warning reason where appropriate. * Makefile.in: Add new diagnostic functions to gettext translations. * include/cpplib.h (struct cpp_callbacks): Add warning reason code to error callback. (CPP_DL_WARNING, CPP_DL_WARNING_SYSHDR, CPP_DL_PEDWARN, CPP_DL_ERROR, CPP_DL_ICE, CPP_DL_NOTE, CPP_DL_FATAL): Replace macros with enums. (CPP_W_NONE, CPP_W_DEPRECATED, CPP_W_COMMENTS, CPP_W_MISSING_INCLUDE_DIRS, CPP_W_TRIGRAPHS, CPP_W_MULTICHAR, CPP_W_TRADITIONAL, CPP_W_LONG_LONG, CPP_W_ENDIF_LABELS, CPP_W_NUM_SIGN_CHANGE, CPP_W_VARIADIC_MACROS, CPP_W_BUILTIN_MACRO_REDEFINED, CPP_W_DOLLARS, CPP_W_UNDEF, CPP_W_UNUSED_MACROS, CPP_W_CXX_OPERATOR_NAMES, CPP_W_NORMALIZE, CPP_W_INVALID_PCH, CPP_W_WARNING_DIRECTIVE): New enums for cpp warning reason codes. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * pch.c (cpp_valid_state): Call specific warning functions with warning reason where appropriate. * errors.c (cpp_diagnostic, cpp_diagnostic_with_line): New central diagnostic handlers. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * expr.c (cpp_classify_number, eval_token, num_unary_op): Call specific warning functions with warning reason where appropriate. * lex.c (_cpp_process_line_notes, _cpp_skip_block_comment, warn_about_normalization, lex_identifier_intern, lex_identifier, _cpp_lex_direct): Ditto. * charset.c (_cpp_valid_ucn, convert_hex, convert_escape, narrow_str_to_charconst): Ditto. * gcc.dg/cpp/warn-undef-2.c: New. * gcc.dg/cpp/warn-traditional-2.c: New. * gcc.dg/cpp/warn-comments-2.c: New. * gcc.dg/cpp/warning-directive-1.c: New. * gcc.dg/cpp/warn-long-long.c: New. * gcc.dg/cpp/warn-traditional.c: New. * gcc.dg/cpp/warn-variadic-2.c: New. * gcc.dg/cpp/warn-undef.c: New. * gcc.dg/cpp/warn-normalized-1.c: New. * gcc.dg/cpp/warning-directive-2.c: New. * gcc.dg/cpp/warn-long-long-2.c: New. * gcc.dg/cpp/warn-variadic.c: New. * gcc.dg/cpp/warn-normalized-2.c: New. * gcc.dg/cpp/warning-directive-3.c: New. * gcc.dg/cpp/warn-deprecated-2.c: New. * gcc.dg/cpp/warn-trigraphs-1.c: New. * gcc.dg/cpp/warn-multichar-2.c: New. * gcc.dg/cpp/warn-normalized-3.c: New. * gcc.dg/cpp/warning-directive-4.c: New. * gcc.dg/cpp/warn-unused-macros.c: New. * gcc.dg/cpp/warn-trigraphs-2.c: New. * gcc.dg/cpp/warn-cxx-compat-2.c: New. * gcc.dg/cpp/warn-cxx-compat.c: New. * gcc.dg/cpp/warn-redefined.c: New. * gcc.dg/cpp/warn-trigraphs-3.c: New. * gcc.dg/cpp/warn-unused-macros-2.c: New. * gcc.dg/cpp/warn-deprecated.c: New. * gcc.dg/cpp/warn-trigraphs-4.c: New. * gcc.dg/cpp/warn-redefined-2.c: New. * gcc.dg/cpp/warn-comments.c: New. * gcc.dg/cpp/warn-multichar.c: New. * g++.dg/cpp/warning-directive-1.C: New. * g++.dg/cpp/warning-directive-2.C: New. * g++.dg/cpp/warning-directive-3.C: New. * g++.dg/cpp/warning-directive-4.C: New. * gfortran.dg/warning-directive-1.F90: New. * gfortran.dg/warning-directive-3.F90: New. * gfortran.dg/warning-directive-2.F90: New. * gfortran.dg/warning-directive-4.F90: New. From-SVN: r158079
2010-04-07 19:18:10 +02:00
: N_("use of C99 long long integer constant");
if (CPP_OPTION (pfile, c99))
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_warning_with_line (pfile, CPP_W_LONG_LONG, virtual_location,
0, message);
diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * c-tree.h (c_cpp_error): Add warning reason argument. * opts.c (_warning_as_error_callback): New. (register_warning_as_error_callback): Store callback for warnings enabled via enable_warning_as_error. (enable_warning_as_error): Call callback, minor code tidy. * opts.h (register_warning_as_error_callback): Declare. * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in response to -Werror=. (c_common_init_options): Register warning_as_error_callback in opts.c. * common.opt: Add -Wno-cpp option. * c-common.c (struct reason_option_codes_t): Map cpp warning reason codes to gcc option indexes. * (c_option_controlling_cpp_error): New function, lookup the gcc option index for a cpp warning reason code. * (c_cpp_error): Add warning reason argument, call c_option_controlling_cpp_error for diagnostic_override_option_index. * doc/invoke.texi: Document -Wno-cpp. * cpp.c (cb_cpp_error): Add warning reason argument, set a value for diagnostic_override_option_index if CPP_W_WARNING_DIRECTIVE. * directives.c (do_diagnostic): Add warning reason argument, call appropriate error reporting function for code. (directive_diagnostics): Call specific warning functions with warning reason where appropriate. (do_error, do_warning, do_pragma_dependency): Add warning reason argument to do_diagnostic calls. * macro.c (_cpp_warn_if_unused_macro, enter_macro_context, _cpp_create_definition): Call specific warning functions with warning reason where appropriate. * Makefile.in: Add new diagnostic functions to gettext translations. * include/cpplib.h (struct cpp_callbacks): Add warning reason code to error callback. (CPP_DL_WARNING, CPP_DL_WARNING_SYSHDR, CPP_DL_PEDWARN, CPP_DL_ERROR, CPP_DL_ICE, CPP_DL_NOTE, CPP_DL_FATAL): Replace macros with enums. (CPP_W_NONE, CPP_W_DEPRECATED, CPP_W_COMMENTS, CPP_W_MISSING_INCLUDE_DIRS, CPP_W_TRIGRAPHS, CPP_W_MULTICHAR, CPP_W_TRADITIONAL, CPP_W_LONG_LONG, CPP_W_ENDIF_LABELS, CPP_W_NUM_SIGN_CHANGE, CPP_W_VARIADIC_MACROS, CPP_W_BUILTIN_MACRO_REDEFINED, CPP_W_DOLLARS, CPP_W_UNDEF, CPP_W_UNUSED_MACROS, CPP_W_CXX_OPERATOR_NAMES, CPP_W_NORMALIZE, CPP_W_INVALID_PCH, CPP_W_WARNING_DIRECTIVE): New enums for cpp warning reason codes. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * pch.c (cpp_valid_state): Call specific warning functions with warning reason where appropriate. * errors.c (cpp_diagnostic, cpp_diagnostic_with_line): New central diagnostic handlers. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * expr.c (cpp_classify_number, eval_token, num_unary_op): Call specific warning functions with warning reason where appropriate. * lex.c (_cpp_process_line_notes, _cpp_skip_block_comment, warn_about_normalization, lex_identifier_intern, lex_identifier, _cpp_lex_direct): Ditto. * charset.c (_cpp_valid_ucn, convert_hex, convert_escape, narrow_str_to_charconst): Ditto. * gcc.dg/cpp/warn-undef-2.c: New. * gcc.dg/cpp/warn-traditional-2.c: New. * gcc.dg/cpp/warn-comments-2.c: New. * gcc.dg/cpp/warning-directive-1.c: New. * gcc.dg/cpp/warn-long-long.c: New. * gcc.dg/cpp/warn-traditional.c: New. * gcc.dg/cpp/warn-variadic-2.c: New. * gcc.dg/cpp/warn-undef.c: New. * gcc.dg/cpp/warn-normalized-1.c: New. * gcc.dg/cpp/warning-directive-2.c: New. * gcc.dg/cpp/warn-long-long-2.c: New. * gcc.dg/cpp/warn-variadic.c: New. * gcc.dg/cpp/warn-normalized-2.c: New. * gcc.dg/cpp/warning-directive-3.c: New. * gcc.dg/cpp/warn-deprecated-2.c: New. * gcc.dg/cpp/warn-trigraphs-1.c: New. * gcc.dg/cpp/warn-multichar-2.c: New. * gcc.dg/cpp/warn-normalized-3.c: New. * gcc.dg/cpp/warning-directive-4.c: New. * gcc.dg/cpp/warn-unused-macros.c: New. * gcc.dg/cpp/warn-trigraphs-2.c: New. * gcc.dg/cpp/warn-cxx-compat-2.c: New. * gcc.dg/cpp/warn-cxx-compat.c: New. * gcc.dg/cpp/warn-redefined.c: New. * gcc.dg/cpp/warn-trigraphs-3.c: New. * gcc.dg/cpp/warn-unused-macros-2.c: New. * gcc.dg/cpp/warn-deprecated.c: New. * gcc.dg/cpp/warn-trigraphs-4.c: New. * gcc.dg/cpp/warn-redefined-2.c: New. * gcc.dg/cpp/warn-comments.c: New. * gcc.dg/cpp/warn-multichar.c: New. * g++.dg/cpp/warning-directive-1.C: New. * g++.dg/cpp/warning-directive-2.C: New. * g++.dg/cpp/warning-directive-3.C: New. * g++.dg/cpp/warning-directive-4.C: New. * gfortran.dg/warning-directive-1.F90: New. * gfortran.dg/warning-directive-3.F90: New. * gfortran.dg/warning-directive-2.F90: New. * gfortran.dg/warning-directive-4.F90: New. From-SVN: r158079
2010-04-07 19:18:10 +02:00
else
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_pedwarning_with_line (pfile, CPP_W_LONG_LONG,
virtual_location, 0, message);
diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * c-tree.h (c_cpp_error): Add warning reason argument. * opts.c (_warning_as_error_callback): New. (register_warning_as_error_callback): Store callback for warnings enabled via enable_warning_as_error. (enable_warning_as_error): Call callback, minor code tidy. * opts.h (register_warning_as_error_callback): Declare. * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in response to -Werror=. (c_common_init_options): Register warning_as_error_callback in opts.c. * common.opt: Add -Wno-cpp option. * c-common.c (struct reason_option_codes_t): Map cpp warning reason codes to gcc option indexes. * (c_option_controlling_cpp_error): New function, lookup the gcc option index for a cpp warning reason code. * (c_cpp_error): Add warning reason argument, call c_option_controlling_cpp_error for diagnostic_override_option_index. * doc/invoke.texi: Document -Wno-cpp. * cpp.c (cb_cpp_error): Add warning reason argument, set a value for diagnostic_override_option_index if CPP_W_WARNING_DIRECTIVE. * directives.c (do_diagnostic): Add warning reason argument, call appropriate error reporting function for code. (directive_diagnostics): Call specific warning functions with warning reason where appropriate. (do_error, do_warning, do_pragma_dependency): Add warning reason argument to do_diagnostic calls. * macro.c (_cpp_warn_if_unused_macro, enter_macro_context, _cpp_create_definition): Call specific warning functions with warning reason where appropriate. * Makefile.in: Add new diagnostic functions to gettext translations. * include/cpplib.h (struct cpp_callbacks): Add warning reason code to error callback. (CPP_DL_WARNING, CPP_DL_WARNING_SYSHDR, CPP_DL_PEDWARN, CPP_DL_ERROR, CPP_DL_ICE, CPP_DL_NOTE, CPP_DL_FATAL): Replace macros with enums. (CPP_W_NONE, CPP_W_DEPRECATED, CPP_W_COMMENTS, CPP_W_MISSING_INCLUDE_DIRS, CPP_W_TRIGRAPHS, CPP_W_MULTICHAR, CPP_W_TRADITIONAL, CPP_W_LONG_LONG, CPP_W_ENDIF_LABELS, CPP_W_NUM_SIGN_CHANGE, CPP_W_VARIADIC_MACROS, CPP_W_BUILTIN_MACRO_REDEFINED, CPP_W_DOLLARS, CPP_W_UNDEF, CPP_W_UNUSED_MACROS, CPP_W_CXX_OPERATOR_NAMES, CPP_W_NORMALIZE, CPP_W_INVALID_PCH, CPP_W_WARNING_DIRECTIVE): New enums for cpp warning reason codes. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * pch.c (cpp_valid_state): Call specific warning functions with warning reason where appropriate. * errors.c (cpp_diagnostic, cpp_diagnostic_with_line): New central diagnostic handlers. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * expr.c (cpp_classify_number, eval_token, num_unary_op): Call specific warning functions with warning reason where appropriate. * lex.c (_cpp_process_line_notes, _cpp_skip_block_comment, warn_about_normalization, lex_identifier_intern, lex_identifier, _cpp_lex_direct): Ditto. * charset.c (_cpp_valid_ucn, convert_hex, convert_escape, narrow_str_to_charconst): Ditto. * gcc.dg/cpp/warn-undef-2.c: New. * gcc.dg/cpp/warn-traditional-2.c: New. * gcc.dg/cpp/warn-comments-2.c: New. * gcc.dg/cpp/warning-directive-1.c: New. * gcc.dg/cpp/warn-long-long.c: New. * gcc.dg/cpp/warn-traditional.c: New. * gcc.dg/cpp/warn-variadic-2.c: New. * gcc.dg/cpp/warn-undef.c: New. * gcc.dg/cpp/warn-normalized-1.c: New. * gcc.dg/cpp/warning-directive-2.c: New. * gcc.dg/cpp/warn-long-long-2.c: New. * gcc.dg/cpp/warn-variadic.c: New. * gcc.dg/cpp/warn-normalized-2.c: New. * gcc.dg/cpp/warning-directive-3.c: New. * gcc.dg/cpp/warn-deprecated-2.c: New. * gcc.dg/cpp/warn-trigraphs-1.c: New. * gcc.dg/cpp/warn-multichar-2.c: New. * gcc.dg/cpp/warn-normalized-3.c: New. * gcc.dg/cpp/warning-directive-4.c: New. * gcc.dg/cpp/warn-unused-macros.c: New. * gcc.dg/cpp/warn-trigraphs-2.c: New. * gcc.dg/cpp/warn-cxx-compat-2.c: New. * gcc.dg/cpp/warn-cxx-compat.c: New. * gcc.dg/cpp/warn-redefined.c: New. * gcc.dg/cpp/warn-trigraphs-3.c: New. * gcc.dg/cpp/warn-unused-macros-2.c: New. * gcc.dg/cpp/warn-deprecated.c: New. * gcc.dg/cpp/warn-trigraphs-4.c: New. * gcc.dg/cpp/warn-redefined-2.c: New. * gcc.dg/cpp/warn-comments.c: New. * gcc.dg/cpp/warn-multichar.c: New. * g++.dg/cpp/warning-directive-1.C: New. * g++.dg/cpp/warning-directive-2.C: New. * g++.dg/cpp/warning-directive-3.C: New. * g++.dg/cpp/warning-directive-4.C: New. * gfortran.dg/warning-directive-1.F90: New. * gfortran.dg/warning-directive-3.F90: New. * gfortran.dg/warning-directive-2.F90: New. * gfortran.dg/warning-directive-4.F90: New. From-SVN: r158079
2010-04-07 19:18:10 +02:00
}
result |= CPP_N_INTEGER;
}
syntax_ok:
if ((result & CPP_N_IMAGINARY) && CPP_PEDANTIC (pfile))
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0,
"imaginary constants are a GCC extension");
if (radix == 2
&& !CPP_OPTION (pfile, binary_constants)
&& CPP_PEDANTIC (pfile))
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0,
CPP_OPTION (pfile, cplusplus)
? N_("binary constants are a C++14 feature "
"or GCC extension")
: N_("binary constants are a GCC extension"));
if (radix == 10)
result |= CPP_N_DECIMAL;
else if (radix == 16)
result |= CPP_N_HEX;
else if (radix == 2)
result |= CPP_N_BINARY;
else
result |= CPP_N_OCTAL;
return result;
syntax_error:
return CPP_N_INVALID;
}
/* cpp_interpret_integer converts an integer constant into a cpp_num,
of precision options->precision.
We do not provide any interface for decimal->float conversion,
because the preprocessor doesn't need it and we don't want to
drag in GCC's floating point emulator. */
cpp_num
cpp_interpret_integer (cpp_reader *pfile, const cpp_token *token,
unsigned int type)
{
const uchar *p, *end;
cpp_num result;
result.low = 0;
result.high = 0;
result.unsignedp = !!(type & CPP_N_UNSIGNED);
result.overflow = false;
p = token->val.str.text;
end = p + token->val.str.len;
/* Common case of a single digit. */
if (token->val.str.len == 1)
result.low = p[0] - '0';
else
{
cpp_num_part max;
size_t precision = CPP_OPTION (pfile, precision);
unsigned int base = 10, c = 0;
bool overflow = false;
if ((type & CPP_N_RADIX) == CPP_N_OCTAL)
{
base = 8;
p++;
}
else if ((type & CPP_N_RADIX) == CPP_N_HEX)
{
base = 16;
p += 2;
}
else if ((type & CPP_N_RADIX) == CPP_N_BINARY)
{
base = 2;
p += 2;
}
/* We can add a digit to numbers strictly less than this without
needing the precision and slowness of double integers. */
max = ~(cpp_num_part) 0;
if (precision < PART_PRECISION)
max >>= PART_PRECISION - precision;
max = (max - base + 1) / base + 1;
for (; p < end; p++)
{
c = *p;
if (ISDIGIT (c) || (base == 16 && ISXDIGIT (c)))
c = hex_value (c);
else if (DIGIT_SEP (c))
continue;
else
break;
/* Strict inequality for when max is set to zero. */
if (result.low < max)
result.low = result.low * base + c;
else
{
result = append_digit (result, c, base, precision);
overflow |= result.overflow;
max = 0;
}
}
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
if (overflow && !(type & CPP_N_USERDEF))
cpp_error (pfile, CPP_DL_PEDWARN,
"integer constant is too large for its type");
/* If too big to be signed, consider it unsigned. Only warn for
decimal numbers. Traditional numbers were always signed (but
we still honor an explicit U suffix); but we only have
traditional semantics in directives. */
else if (!result.unsignedp
&& !(CPP_OPTION (pfile, traditional)
&& pfile->state.in_directive)
&& !num_positive (result, precision))
{
/* This is for constants within the range of uintmax_t but
not that of intmax_t. For such decimal constants, a
diagnostic is required for C99 as the selected type must
be signed and not having a type is a constraint violation
(DR#298, TC3), so this must be a pedwarn. For C90,
unsigned long is specified to be used for a constant that
does not fit in signed long; if uintmax_t has the same
range as unsigned long this means only a warning is
appropriate here. C90 permits the preprocessor to use a
wider range than unsigned long in the compiler, so if
uintmax_t is wider than unsigned long no diagnostic is
required for such constants in preprocessor #if
expressions and the compiler will pedwarn for such
constants outside the range of unsigned long that reach
the compiler so a diagnostic is not required there
either; thus, pedwarn for C99 but use a plain warning for
C90. */
if (base == 10)
cpp_error (pfile, (CPP_OPTION (pfile, c99)
? CPP_DL_PEDWARN
: CPP_DL_WARNING),
"integer constant is so large that it is unsigned");
result.unsignedp = true;
}
}
return result;
}
/* Append DIGIT to NUM, a number of PRECISION bits being read in base BASE. */
static cpp_num
append_digit (cpp_num num, int digit, int base, size_t precision)
{
cpp_num result;
unsigned int shift;
bool overflow;
cpp_num_part add_high, add_low;
/* Multiply by 2, 8 or 16. Catching this overflow here means we don't
need to worry about add_high overflowing. */
switch (base)
{
case 2:
shift = 1;
break;
case 16:
shift = 4;
break;
default:
shift = 3;
}
overflow = !!(num.high >> (PART_PRECISION - shift));
result.high = num.high << shift;
result.low = num.low << shift;
result.high |= num.low >> (PART_PRECISION - shift);
result.unsignedp = num.unsignedp;
if (base == 10)
{
add_low = num.low << 1;
add_high = (num.high << 1) + (num.low >> (PART_PRECISION - 1));
}
else
add_high = add_low = 0;
if (add_low + digit < add_low)
add_high++;
add_low += digit;
if (result.low + add_low < result.low)
add_high++;
if (result.high + add_high < result.high)
overflow = true;
result.low += add_low;
result.high += add_high;
result.overflow = overflow;
/* The above code catches overflow of a cpp_num type. This catches
overflow of the (possibly shorter) target precision. */
num.low = result.low;
num.high = result.high;
result = num_trim (result, precision);
if (!num_eq (result, num))
result.overflow = true;
return result;
}
/* Handle meeting "defined" in a preprocessor expression. */
static cpp_num
parse_defined (cpp_reader *pfile)
cpplib.h (CPP_ASSERTION, [...]): New token types. * cpplib.h (CPP_ASSERTION, CPP_STRINGIZE, CPP_TOKPASTE): New token types. (struct cpp_reader): Add parsing_if_directive and parsing_define_directive flags. (struct cpp_options): Remove output_conditionals flag. (check_macro_name): Delete prototype. * cpphash.h (struct macrodef): Delete. (struct reflist): Separate from struct definition. (struct definition): Remove unused fields. Add column number. (create_definition): Returns a DEFINITION *. Takes a cpp_reader * and an int. * cpphash.c (SKIP_WHITE_SPACE): Delete. (PEEKC): Copy defn from cpplib.c. (rest_extension, REST_EXTENSION_LENGTH): Delete. (struct arg): New. (struct arglist): Simplify. (collect_expansion): Rewrite. Get tokens by calling cpp_get_token. Add more error checking. (collect_formal_parameters): New function, broken out of create_definition and reworked to use get_directive_token. (create_definition): All real work is now in collect_expansion and collect_formal_parameters. do_define handles finding the macro name. Return a DEFINITION, not a MACRODEF. (macroexpand): Replace bcopy with memcpy throughout. Replace character-at-a-time copy loop with memcpy and pointer increments. (compare-defs): d1->argnames / d2->argnames might be null. * cpplib.c (copy_rest_of_line): Delete function. (skip_rest_of_line): Do all the work ourselves. (skip_string): New function. (parse_string): Use skip_string. (get_macro_name): New function. (check_macro_name): Delete. (copy_comment): Use CPP_RESERVE and CPP_PUTC_Q. (cpp_skip_hspace): Use CPP_BUMP_LINE. (handle_directive): ICE if we're called on a macro buffer. (do_define): Determine macro name and type (funlike/objlike) here. Expunge all uses of MACRODEF. (cpp_push_buffer): Set line_base to NULL. (do_undef, read_line_number): Don't worry about getting a POP token. (eval_if_expression): Set/reset parsing_if_directive around cpp_parse_expr. Don't clear only_seen_white. (skip_if_group): Remove output_conditionals logic. Use skip_rest_of_line. (cpp_get_token): Return ASSERTION, STRINGIZE, and TOKPASTE tokens under appropriate conditions. (cpp_unassert): Call do_unassert not do_assert. Oops. * cppexp.c (parse_defined): New function, break out of cpp_lex. (cpp_lex): We now get CPP_ASSERTION tokens and can check them ourselves, with cpp_defined. * cppinit.c (cpp_handle_option, print_help): Delete -ifoutput. * gcc.dg/20000209-2.c: Turn off -pedantic-errors. * gcc.dg/strpaste-2.c: New. From-SVN: r32274
2000-03-01 01:57:09 +01:00
{
cpp_num result;
New macro expander. 2000-10-28 Neil Booth <neilb@earthling.net> New macro expander. * cpplib.c (struct answer): New. (struct if_stack): Use cpp_lexer_pos rather than line and col. Rename cmacro mi_cmacro. (struct directive, KANDR, STDC89, EXTENSION, COND, IF_COND, INCL, IN_I): New directive and flags. (skip_rest_of_line, check_eol, run_directive, glue_header_name, parse_answer, parse_assertion, find_answer): New functions. (parse_ifdef, detect_if_not_defined, validate_else): Remove. (lex_macro_node): New function to replace parse_ifdef and get_define_node. (_cpp_handle_directive): New function, combines _cpp_check_directive and _cpp_check_linemarker. (do_define, do_undef, parse_include, do_include, do_import, do_include_next, read_line_number, do_line, do_ident, do_pragma, do_pragma_once, do_pragma_poison, do_pragma_dependency): Update for new token getting interface. (do_ifdef, do_ifndef, do_if, do_else, do_endif, push_conditional) : Update for new multiple-include optimisation technique. (do_elif): Don't forget to invalidate controlling macros. (unwind_if_stack, cpp_defined, cpp_push_buffer, cpp_pop_buffer): Update. (parse_assertion, parse_answer, find_answer, _cpp_test_assertion): Functions to handle assertions with the new token interface. (do_assert, do_unassert): Use them. (cpp_define, _cpp_define_builtin, cpp_undef, cpp_assert, cpp_unassert): Use run_directive. (_cpp_init_stacks): Register directive names. Don't register special nodes. * cpperror.c (print_containing_files, _cpp_begin_message): Update to new position recording regime. (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line): Update for _cpp_begin_message changes. (cpp_type2name): Move to cpplex.c. * cppexp.c (parse_charconst): spec_nodes is no longer a pointer. (parse_defined): Update to handle new multiple include optimisation method. Remove poisoned identifier warning. (parse_assertion, TYPE_NAME): Delete. (lex): Update for multiple include optimisation, removal of CPP_DEFINED, to use _cpp_test_assertion for assertions and cpp_token_as_text. (_cpp_parse_expr): Update for MI optimisation, and to use op_as_text. (op_as_text): New function, to wrap cpp_token_as_text. * cppfiles.c (stack_include_file, _cpp_pop_file_buffer): Update for MI optimisation. (_cpp_execute_include): Take a token rather than 3 arguments. Fix segfault on diagnostic. (_cpp_compare_file_date): Take a token rather than 3 args. (cpp_read_file): Work correctly for zero-length files. * cpphash.c (_cpp_init_macros, _cpp_cleanup_macros): Rename _cpp_init_hashtable and _cpp_cleanup_hashtable. (cpp_lookup): Place identifiers at front of identifier pool for _cpp_lookup_with_hash. (_cpp_lookup_with_hash): Require identifiers to be at the front of the identifier pool. Commit the memory if not already in the hash table. * cppinit.c (cpp_reader_init): Move cpp_init_completed test to top. Initialise various members of cpp_reader, memory pools, and the special nodes. (cpp_printer_init): Delete. (cpp_cleanup): Update. (struct builtin, builtin_array, initialize_builtins): Update for new hashnode definition and builtin handling. (cpp_start_read, cpp_finish): Don't take or initialise a printer. Update. * cpplib.h (cpp_printer, cpp_toklist, CPP_DEFINED, BOL, PASTED, VAR_ARGS, BEG_OF_FILE, IN_DIRECTIVE, KNOWN_DIRECTIVE, T_VOID, T_SPECLINE, T_DATE, T_FILE, T_BASE_FILE, T_INCLUDE_LEVEL, T_TIME, T_STDC, T_OPERATOR, T_POISON, T_MACRO, T_ASSERTION): Delete. (struct cpp_pool, struct cpp_macro, struct cpp_lexer_pos, struct cpp_lookahead, CPP_DHASH, enum mi_state, enum mi_ind, NO_EXPAND, VARARGS_FIRST, struct cpp_token_with_pos, struct toklist, struct cpp_context, struct specnodes, TOKEN_LOOKAHEAD, TOKEN_BUFFSIZE, NODE_OPERATOR, NODE_POISONED, NODE_BUILTIN, NODE_DIAGNOSTIC, NT_VOID, NT_MACRO, NT_ASSERTION, enum builtin_type, cpp_can_paste): New. (struct cpp_token): Delete line and col members. (struct cpp_buffer): New member output_lineno. (struct lexer_state): Delete indented, in_lex_line, seen_dot. Add va_args_ok, poisoned_ok, prevent_expansion, parsing_args. (struct cpp_reader): New members lexer_pos, macro_pos, directive_pos, ident_pool, temp_string_pool, macro_pool, argument_pool, string_pool, base_context, context, directive, mi_state, mi_if_not_defined, mi_lexed, mi_cmacro, mi_ind_cmacro, la_read, la_write, la_unused, mlstring_pos, macro_buffer, macro_buffer_len. Delete members mls_line, mls_column, token_list, potential_control_macro, temp_tokens, temp_cap, temp_alloced, temp_used, first_directive_token, context_cap, cur_context, no_expand_level, paste_level, contexts, args, save_parameter_spellings, need_newline, . Change type of date, time and spec_nodes members. Change prototypes for include and ident callbacks. (struct cpp_hashnode): Change type of name. Remove union members expansion and code. Add members macro, operator and builtin. (cpp_token_len, cpp_token_as_text, cpp_spell_token, cpp_start_read, cpp_finish, cpp_avoid_paste, cpp_get_token, cpp_get_line, cpp_get_output_line, cpp_macro_definition, cpp_start_lookahead, cpp_stop_lookahead): New prototypes. (cpp_printer_init, cpp_dump_definition): Delete prototypes. (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move from cpphash.h. * cpphash.h (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move to cpplib.h. (enum spell_type, struct token_spelling, _cpp_token_spellings, TOKEN_SPELL, TOKEN_NAME, struct answer, FREE_ANSWER, KANDR, STDC89, EXTENSION, COND, EXPAND, INCL, COMMENTS, IN_I, struct directive, directive_handler, struct spec_nodes, _cpp_digraph_spellings, _cpp_free_temp_tokens, _cpp_init_input_buffer, _cpp_grow_token_buffer, _cpp_init_toklist, _cpp_clear_toklist, _cpp_expand_token_space, _cpp_expand_name_space, _cpp_equiv_tokens, _cpp_equiv_toklists, _cpp_process_directive, _cpp_run_directive, _cpp_get_line, _cpp_get_raw_token, _cpp_glue_header_name, _cpp_can_paste, _cpp_check_directive, _cpp_check_linemarker, _cpp_parse_assertion, _cpp_find_answer): Delete. (VALID_SIGN, ALIGN, POOL_FRONT, POOL_LIMIT, POOL_BASE, POOL_SIZE, POOL_USED, POOL_COMMIT, struct cpp_chunk, _cpp_lex_token, _cpp_init_pool, _cpp_free_pool, _cpp_pool_reserve, _cpp_pool_alloc, _cpp_next_chunk, _cpp_lock_pool, _cpp_unlock_pool, _cpp_test_assertion, _cpp_handle_directive, DSC): New. (struct include_file): New member defined. (DO_NOT_REREAD, _cpp_begin_message, _cpp_execute_include, _cpp_compare_file_date): Update. (_cpp_pop_context, _cpp_get_token, _cpp_free_lookaheads, _cpp_push_token): New. (_cpp_init_macros, _cpp_cleanup_macros): Rename to _cpp_init_hashtable, _cpp_cleanup_hashtable. * Makefile.in: Remove cppoutput.c. * cppoutput.c: Delete * fixheader.c (read_scan_file): Update for new cpp_get_token prototype. (recognized_function): New argument LINE. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new cpp_get_token prototype. * scan.h (recognized_function): Update prototype. * po/POTFILES.in: Remove cppoutput.c. From-SVN: r37098
2000-10-28 19:59:06 +02:00
int paren = 0;
cpp_hashnode *node = 0;
c-lex.c (cb_def_pragma): Update. * c-lex.c (cb_def_pragma): Update. (c_lex): Update, and skip padding. * cppexp.c (lex, parse_defined): Update, remove unused variable. * cpphash.h (struct toklist): Delete. (union utoken): New. (struct cpp_context): Update. (struct cpp_reader): New members eof, avoid_paste. (_cpp_temp_token): New. * cppinit.c (cpp_create_reader): Update. * cpplex.c (_cpp_temp_token): New. (_cpp_lex_direct): Add PREV_WHITE when parsing args. (cpp_output_token): Don't print leading whitespace. (cpp_output_line): Update. * cpplib.c (glue_header_name, parse_include, get__Pragma_string, do_include_common, do_line, do_ident, do_pragma, do_pragma_dependency, _cpp_do__Pragma, parse_answer, parse_assertion): Update. (get_token_no_padding): New. * cpplib.h (CPP_PADDING): New. (AVOID_LPASTE): Delete. (struct cpp_token): New union member source. (cpp_get_token): Update. * cppmacro.c (macro_arg): Convert to use pointers to const tokens. (builtin_macro, paste_all_tokens, paste_tokens, funlike_invocation_p, replace_args, quote_string, stringify_arg, parse_arg, next_context, enter_macro_context, expand_arg, _cpp_pop_context, cpp_scan_nooutput, _cpp_backup_tokens, _cpp_create_definition): Update. (push_arg_context): Delete. (padding_token, push_token_context, push_ptoken_context): New. (make_string_token, make_number_token): Update, rename. (cpp_get_token): Update to handle tokens as pointers to const, and insert padding appropriately. * cppmain.c (struct printer): New member prev. (check_multiline_token): Constify. (do_preprocessing, cb_line_change): Update. (scan_translation_unit): Update to handle spacing. * scan-decls.c (get_a_token): New. (skip_to_closing_brace, scan_decls): Update. * fix-header.c (read_scan_file): Update. * doc/cpp.texi: Update. * gcc.dg/cpp/macro10.c: New test. * gcc.dg/cpp/strify3.c: New test. * gcc.dg/cpp/spacing1.c: Add tests. * gcc.dg/cpp/19990703-1.c: Remove bogus test. * gcc.dg/cpp/20000625-2.c: Fudge to pass. From-SVN: r45793
2001-09-25 00:53:12 +02:00
const cpp_token *token;
cpp_context *initial_context = pfile->context;
cpplib.h (CPP_ASSERTION, [...]): New token types. * cpplib.h (CPP_ASSERTION, CPP_STRINGIZE, CPP_TOKPASTE): New token types. (struct cpp_reader): Add parsing_if_directive and parsing_define_directive flags. (struct cpp_options): Remove output_conditionals flag. (check_macro_name): Delete prototype. * cpphash.h (struct macrodef): Delete. (struct reflist): Separate from struct definition. (struct definition): Remove unused fields. Add column number. (create_definition): Returns a DEFINITION *. Takes a cpp_reader * and an int. * cpphash.c (SKIP_WHITE_SPACE): Delete. (PEEKC): Copy defn from cpplib.c. (rest_extension, REST_EXTENSION_LENGTH): Delete. (struct arg): New. (struct arglist): Simplify. (collect_expansion): Rewrite. Get tokens by calling cpp_get_token. Add more error checking. (collect_formal_parameters): New function, broken out of create_definition and reworked to use get_directive_token. (create_definition): All real work is now in collect_expansion and collect_formal_parameters. do_define handles finding the macro name. Return a DEFINITION, not a MACRODEF. (macroexpand): Replace bcopy with memcpy throughout. Replace character-at-a-time copy loop with memcpy and pointer increments. (compare-defs): d1->argnames / d2->argnames might be null. * cpplib.c (copy_rest_of_line): Delete function. (skip_rest_of_line): Do all the work ourselves. (skip_string): New function. (parse_string): Use skip_string. (get_macro_name): New function. (check_macro_name): Delete. (copy_comment): Use CPP_RESERVE and CPP_PUTC_Q. (cpp_skip_hspace): Use CPP_BUMP_LINE. (handle_directive): ICE if we're called on a macro buffer. (do_define): Determine macro name and type (funlike/objlike) here. Expunge all uses of MACRODEF. (cpp_push_buffer): Set line_base to NULL. (do_undef, read_line_number): Don't worry about getting a POP token. (eval_if_expression): Set/reset parsing_if_directive around cpp_parse_expr. Don't clear only_seen_white. (skip_if_group): Remove output_conditionals logic. Use skip_rest_of_line. (cpp_get_token): Return ASSERTION, STRINGIZE, and TOKPASTE tokens under appropriate conditions. (cpp_unassert): Call do_unassert not do_assert. Oops. * cppexp.c (parse_defined): New function, break out of cpp_lex. (cpp_lex): We now get CPP_ASSERTION tokens and can check them ourselves, with cpp_defined. * cppinit.c (cpp_handle_option, print_help): Delete -ifoutput. * gcc.dg/20000209-2.c: Turn off -pedantic-errors. * gcc.dg/strpaste-2.c: New. From-SVN: r32274
2000-03-01 01:57:09 +01:00
New macro expander. 2000-10-28 Neil Booth <neilb@earthling.net> New macro expander. * cpplib.c (struct answer): New. (struct if_stack): Use cpp_lexer_pos rather than line and col. Rename cmacro mi_cmacro. (struct directive, KANDR, STDC89, EXTENSION, COND, IF_COND, INCL, IN_I): New directive and flags. (skip_rest_of_line, check_eol, run_directive, glue_header_name, parse_answer, parse_assertion, find_answer): New functions. (parse_ifdef, detect_if_not_defined, validate_else): Remove. (lex_macro_node): New function to replace parse_ifdef and get_define_node. (_cpp_handle_directive): New function, combines _cpp_check_directive and _cpp_check_linemarker. (do_define, do_undef, parse_include, do_include, do_import, do_include_next, read_line_number, do_line, do_ident, do_pragma, do_pragma_once, do_pragma_poison, do_pragma_dependency): Update for new token getting interface. (do_ifdef, do_ifndef, do_if, do_else, do_endif, push_conditional) : Update for new multiple-include optimisation technique. (do_elif): Don't forget to invalidate controlling macros. (unwind_if_stack, cpp_defined, cpp_push_buffer, cpp_pop_buffer): Update. (parse_assertion, parse_answer, find_answer, _cpp_test_assertion): Functions to handle assertions with the new token interface. (do_assert, do_unassert): Use them. (cpp_define, _cpp_define_builtin, cpp_undef, cpp_assert, cpp_unassert): Use run_directive. (_cpp_init_stacks): Register directive names. Don't register special nodes. * cpperror.c (print_containing_files, _cpp_begin_message): Update to new position recording regime. (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line): Update for _cpp_begin_message changes. (cpp_type2name): Move to cpplex.c. * cppexp.c (parse_charconst): spec_nodes is no longer a pointer. (parse_defined): Update to handle new multiple include optimisation method. Remove poisoned identifier warning. (parse_assertion, TYPE_NAME): Delete. (lex): Update for multiple include optimisation, removal of CPP_DEFINED, to use _cpp_test_assertion for assertions and cpp_token_as_text. (_cpp_parse_expr): Update for MI optimisation, and to use op_as_text. (op_as_text): New function, to wrap cpp_token_as_text. * cppfiles.c (stack_include_file, _cpp_pop_file_buffer): Update for MI optimisation. (_cpp_execute_include): Take a token rather than 3 arguments. Fix segfault on diagnostic. (_cpp_compare_file_date): Take a token rather than 3 args. (cpp_read_file): Work correctly for zero-length files. * cpphash.c (_cpp_init_macros, _cpp_cleanup_macros): Rename _cpp_init_hashtable and _cpp_cleanup_hashtable. (cpp_lookup): Place identifiers at front of identifier pool for _cpp_lookup_with_hash. (_cpp_lookup_with_hash): Require identifiers to be at the front of the identifier pool. Commit the memory if not already in the hash table. * cppinit.c (cpp_reader_init): Move cpp_init_completed test to top. Initialise various members of cpp_reader, memory pools, and the special nodes. (cpp_printer_init): Delete. (cpp_cleanup): Update. (struct builtin, builtin_array, initialize_builtins): Update for new hashnode definition and builtin handling. (cpp_start_read, cpp_finish): Don't take or initialise a printer. Update. * cpplib.h (cpp_printer, cpp_toklist, CPP_DEFINED, BOL, PASTED, VAR_ARGS, BEG_OF_FILE, IN_DIRECTIVE, KNOWN_DIRECTIVE, T_VOID, T_SPECLINE, T_DATE, T_FILE, T_BASE_FILE, T_INCLUDE_LEVEL, T_TIME, T_STDC, T_OPERATOR, T_POISON, T_MACRO, T_ASSERTION): Delete. (struct cpp_pool, struct cpp_macro, struct cpp_lexer_pos, struct cpp_lookahead, CPP_DHASH, enum mi_state, enum mi_ind, NO_EXPAND, VARARGS_FIRST, struct cpp_token_with_pos, struct toklist, struct cpp_context, struct specnodes, TOKEN_LOOKAHEAD, TOKEN_BUFFSIZE, NODE_OPERATOR, NODE_POISONED, NODE_BUILTIN, NODE_DIAGNOSTIC, NT_VOID, NT_MACRO, NT_ASSERTION, enum builtin_type, cpp_can_paste): New. (struct cpp_token): Delete line and col members. (struct cpp_buffer): New member output_lineno. (struct lexer_state): Delete indented, in_lex_line, seen_dot. Add va_args_ok, poisoned_ok, prevent_expansion, parsing_args. (struct cpp_reader): New members lexer_pos, macro_pos, directive_pos, ident_pool, temp_string_pool, macro_pool, argument_pool, string_pool, base_context, context, directive, mi_state, mi_if_not_defined, mi_lexed, mi_cmacro, mi_ind_cmacro, la_read, la_write, la_unused, mlstring_pos, macro_buffer, macro_buffer_len. Delete members mls_line, mls_column, token_list, potential_control_macro, temp_tokens, temp_cap, temp_alloced, temp_used, first_directive_token, context_cap, cur_context, no_expand_level, paste_level, contexts, args, save_parameter_spellings, need_newline, . Change type of date, time and spec_nodes members. Change prototypes for include and ident callbacks. (struct cpp_hashnode): Change type of name. Remove union members expansion and code. Add members macro, operator and builtin. (cpp_token_len, cpp_token_as_text, cpp_spell_token, cpp_start_read, cpp_finish, cpp_avoid_paste, cpp_get_token, cpp_get_line, cpp_get_output_line, cpp_macro_definition, cpp_start_lookahead, cpp_stop_lookahead): New prototypes. (cpp_printer_init, cpp_dump_definition): Delete prototypes. (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move from cpphash.h. * cpphash.h (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move to cpplib.h. (enum spell_type, struct token_spelling, _cpp_token_spellings, TOKEN_SPELL, TOKEN_NAME, struct answer, FREE_ANSWER, KANDR, STDC89, EXTENSION, COND, EXPAND, INCL, COMMENTS, IN_I, struct directive, directive_handler, struct spec_nodes, _cpp_digraph_spellings, _cpp_free_temp_tokens, _cpp_init_input_buffer, _cpp_grow_token_buffer, _cpp_init_toklist, _cpp_clear_toklist, _cpp_expand_token_space, _cpp_expand_name_space, _cpp_equiv_tokens, _cpp_equiv_toklists, _cpp_process_directive, _cpp_run_directive, _cpp_get_line, _cpp_get_raw_token, _cpp_glue_header_name, _cpp_can_paste, _cpp_check_directive, _cpp_check_linemarker, _cpp_parse_assertion, _cpp_find_answer): Delete. (VALID_SIGN, ALIGN, POOL_FRONT, POOL_LIMIT, POOL_BASE, POOL_SIZE, POOL_USED, POOL_COMMIT, struct cpp_chunk, _cpp_lex_token, _cpp_init_pool, _cpp_free_pool, _cpp_pool_reserve, _cpp_pool_alloc, _cpp_next_chunk, _cpp_lock_pool, _cpp_unlock_pool, _cpp_test_assertion, _cpp_handle_directive, DSC): New. (struct include_file): New member defined. (DO_NOT_REREAD, _cpp_begin_message, _cpp_execute_include, _cpp_compare_file_date): Update. (_cpp_pop_context, _cpp_get_token, _cpp_free_lookaheads, _cpp_push_token): New. (_cpp_init_macros, _cpp_cleanup_macros): Rename to _cpp_init_hashtable, _cpp_cleanup_hashtable. * Makefile.in: Remove cppoutput.c. * cppoutput.c: Delete * fixheader.c (read_scan_file): Update for new cpp_get_token prototype. (recognized_function): New argument LINE. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new cpp_get_token prototype. * scan.h (recognized_function): Update prototype. * po/POTFILES.in: Remove cppoutput.c. From-SVN: r37098
2000-10-28 19:59:06 +02:00
/* Don't expand macros. */
pfile->state.prevent_expansion++;
c-lex.c (cb_def_pragma): Update. * c-lex.c (cb_def_pragma): Update. (c_lex): Update, and skip padding. * cppexp.c (lex, parse_defined): Update, remove unused variable. * cpphash.h (struct toklist): Delete. (union utoken): New. (struct cpp_context): Update. (struct cpp_reader): New members eof, avoid_paste. (_cpp_temp_token): New. * cppinit.c (cpp_create_reader): Update. * cpplex.c (_cpp_temp_token): New. (_cpp_lex_direct): Add PREV_WHITE when parsing args. (cpp_output_token): Don't print leading whitespace. (cpp_output_line): Update. * cpplib.c (glue_header_name, parse_include, get__Pragma_string, do_include_common, do_line, do_ident, do_pragma, do_pragma_dependency, _cpp_do__Pragma, parse_answer, parse_assertion): Update. (get_token_no_padding): New. * cpplib.h (CPP_PADDING): New. (AVOID_LPASTE): Delete. (struct cpp_token): New union member source. (cpp_get_token): Update. * cppmacro.c (macro_arg): Convert to use pointers to const tokens. (builtin_macro, paste_all_tokens, paste_tokens, funlike_invocation_p, replace_args, quote_string, stringify_arg, parse_arg, next_context, enter_macro_context, expand_arg, _cpp_pop_context, cpp_scan_nooutput, _cpp_backup_tokens, _cpp_create_definition): Update. (push_arg_context): Delete. (padding_token, push_token_context, push_ptoken_context): New. (make_string_token, make_number_token): Update, rename. (cpp_get_token): Update to handle tokens as pointers to const, and insert padding appropriately. * cppmain.c (struct printer): New member prev. (check_multiline_token): Constify. (do_preprocessing, cb_line_change): Update. (scan_translation_unit): Update to handle spacing. * scan-decls.c (get_a_token): New. (skip_to_closing_brace, scan_decls): Update. * fix-header.c (read_scan_file): Update. * doc/cpp.texi: Update. * gcc.dg/cpp/macro10.c: New test. * gcc.dg/cpp/strify3.c: New test. * gcc.dg/cpp/spacing1.c: Add tests. * gcc.dg/cpp/19990703-1.c: Remove bogus test. * gcc.dg/cpp/20000625-2.c: Fudge to pass. From-SVN: r45793
2001-09-25 00:53:12 +02:00
token = cpp_get_token (pfile);
if (token->type == CPP_OPEN_PAREN)
cpplib.h (CPP_ASSERTION, [...]): New token types. * cpplib.h (CPP_ASSERTION, CPP_STRINGIZE, CPP_TOKPASTE): New token types. (struct cpp_reader): Add parsing_if_directive and parsing_define_directive flags. (struct cpp_options): Remove output_conditionals flag. (check_macro_name): Delete prototype. * cpphash.h (struct macrodef): Delete. (struct reflist): Separate from struct definition. (struct definition): Remove unused fields. Add column number. (create_definition): Returns a DEFINITION *. Takes a cpp_reader * and an int. * cpphash.c (SKIP_WHITE_SPACE): Delete. (PEEKC): Copy defn from cpplib.c. (rest_extension, REST_EXTENSION_LENGTH): Delete. (struct arg): New. (struct arglist): Simplify. (collect_expansion): Rewrite. Get tokens by calling cpp_get_token. Add more error checking. (collect_formal_parameters): New function, broken out of create_definition and reworked to use get_directive_token. (create_definition): All real work is now in collect_expansion and collect_formal_parameters. do_define handles finding the macro name. Return a DEFINITION, not a MACRODEF. (macroexpand): Replace bcopy with memcpy throughout. Replace character-at-a-time copy loop with memcpy and pointer increments. (compare-defs): d1->argnames / d2->argnames might be null. * cpplib.c (copy_rest_of_line): Delete function. (skip_rest_of_line): Do all the work ourselves. (skip_string): New function. (parse_string): Use skip_string. (get_macro_name): New function. (check_macro_name): Delete. (copy_comment): Use CPP_RESERVE and CPP_PUTC_Q. (cpp_skip_hspace): Use CPP_BUMP_LINE. (handle_directive): ICE if we're called on a macro buffer. (do_define): Determine macro name and type (funlike/objlike) here. Expunge all uses of MACRODEF. (cpp_push_buffer): Set line_base to NULL. (do_undef, read_line_number): Don't worry about getting a POP token. (eval_if_expression): Set/reset parsing_if_directive around cpp_parse_expr. Don't clear only_seen_white. (skip_if_group): Remove output_conditionals logic. Use skip_rest_of_line. (cpp_get_token): Return ASSERTION, STRINGIZE, and TOKPASTE tokens under appropriate conditions. (cpp_unassert): Call do_unassert not do_assert. Oops. * cppexp.c (parse_defined): New function, break out of cpp_lex. (cpp_lex): We now get CPP_ASSERTION tokens and can check them ourselves, with cpp_defined. * cppinit.c (cpp_handle_option, print_help): Delete -ifoutput. * gcc.dg/20000209-2.c: Turn off -pedantic-errors. * gcc.dg/strpaste-2.c: New. From-SVN: r32274
2000-03-01 01:57:09 +01:00
{
paren = 1;
c-lex.c (cb_def_pragma): Update. * c-lex.c (cb_def_pragma): Update. (c_lex): Update, and skip padding. * cppexp.c (lex, parse_defined): Update, remove unused variable. * cpphash.h (struct toklist): Delete. (union utoken): New. (struct cpp_context): Update. (struct cpp_reader): New members eof, avoid_paste. (_cpp_temp_token): New. * cppinit.c (cpp_create_reader): Update. * cpplex.c (_cpp_temp_token): New. (_cpp_lex_direct): Add PREV_WHITE when parsing args. (cpp_output_token): Don't print leading whitespace. (cpp_output_line): Update. * cpplib.c (glue_header_name, parse_include, get__Pragma_string, do_include_common, do_line, do_ident, do_pragma, do_pragma_dependency, _cpp_do__Pragma, parse_answer, parse_assertion): Update. (get_token_no_padding): New. * cpplib.h (CPP_PADDING): New. (AVOID_LPASTE): Delete. (struct cpp_token): New union member source. (cpp_get_token): Update. * cppmacro.c (macro_arg): Convert to use pointers to const tokens. (builtin_macro, paste_all_tokens, paste_tokens, funlike_invocation_p, replace_args, quote_string, stringify_arg, parse_arg, next_context, enter_macro_context, expand_arg, _cpp_pop_context, cpp_scan_nooutput, _cpp_backup_tokens, _cpp_create_definition): Update. (push_arg_context): Delete. (padding_token, push_token_context, push_ptoken_context): New. (make_string_token, make_number_token): Update, rename. (cpp_get_token): Update to handle tokens as pointers to const, and insert padding appropriately. * cppmain.c (struct printer): New member prev. (check_multiline_token): Constify. (do_preprocessing, cb_line_change): Update. (scan_translation_unit): Update to handle spacing. * scan-decls.c (get_a_token): New. (skip_to_closing_brace, scan_decls): Update. * fix-header.c (read_scan_file): Update. * doc/cpp.texi: Update. * gcc.dg/cpp/macro10.c: New test. * gcc.dg/cpp/strify3.c: New test. * gcc.dg/cpp/spacing1.c: Add tests. * gcc.dg/cpp/19990703-1.c: Remove bogus test. * gcc.dg/cpp/20000625-2.c: Fudge to pass. From-SVN: r45793
2001-09-25 00:53:12 +02:00
token = cpp_get_token (pfile);
cpplib.h (CPP_ASSERTION, [...]): New token types. * cpplib.h (CPP_ASSERTION, CPP_STRINGIZE, CPP_TOKPASTE): New token types. (struct cpp_reader): Add parsing_if_directive and parsing_define_directive flags. (struct cpp_options): Remove output_conditionals flag. (check_macro_name): Delete prototype. * cpphash.h (struct macrodef): Delete. (struct reflist): Separate from struct definition. (struct definition): Remove unused fields. Add column number. (create_definition): Returns a DEFINITION *. Takes a cpp_reader * and an int. * cpphash.c (SKIP_WHITE_SPACE): Delete. (PEEKC): Copy defn from cpplib.c. (rest_extension, REST_EXTENSION_LENGTH): Delete. (struct arg): New. (struct arglist): Simplify. (collect_expansion): Rewrite. Get tokens by calling cpp_get_token. Add more error checking. (collect_formal_parameters): New function, broken out of create_definition and reworked to use get_directive_token. (create_definition): All real work is now in collect_expansion and collect_formal_parameters. do_define handles finding the macro name. Return a DEFINITION, not a MACRODEF. (macroexpand): Replace bcopy with memcpy throughout. Replace character-at-a-time copy loop with memcpy and pointer increments. (compare-defs): d1->argnames / d2->argnames might be null. * cpplib.c (copy_rest_of_line): Delete function. (skip_rest_of_line): Do all the work ourselves. (skip_string): New function. (parse_string): Use skip_string. (get_macro_name): New function. (check_macro_name): Delete. (copy_comment): Use CPP_RESERVE and CPP_PUTC_Q. (cpp_skip_hspace): Use CPP_BUMP_LINE. (handle_directive): ICE if we're called on a macro buffer. (do_define): Determine macro name and type (funlike/objlike) here. Expunge all uses of MACRODEF. (cpp_push_buffer): Set line_base to NULL. (do_undef, read_line_number): Don't worry about getting a POP token. (eval_if_expression): Set/reset parsing_if_directive around cpp_parse_expr. Don't clear only_seen_white. (skip_if_group): Remove output_conditionals logic. Use skip_rest_of_line. (cpp_get_token): Return ASSERTION, STRINGIZE, and TOKPASTE tokens under appropriate conditions. (cpp_unassert): Call do_unassert not do_assert. Oops. * cppexp.c (parse_defined): New function, break out of cpp_lex. (cpp_lex): We now get CPP_ASSERTION tokens and can check them ourselves, with cpp_defined. * cppinit.c (cpp_handle_option, print_help): Delete -ifoutput. * gcc.dg/20000209-2.c: Turn off -pedantic-errors. * gcc.dg/strpaste-2.c: New. From-SVN: r32274
2000-03-01 01:57:09 +01:00
}
c-lex.c (cb_def_pragma): Update. * c-lex.c (cb_def_pragma): Update. (c_lex): Update, and skip padding. * cppexp.c (lex, parse_defined): Update, remove unused variable. * cpphash.h (struct toklist): Delete. (union utoken): New. (struct cpp_context): Update. (struct cpp_reader): New members eof, avoid_paste. (_cpp_temp_token): New. * cppinit.c (cpp_create_reader): Update. * cpplex.c (_cpp_temp_token): New. (_cpp_lex_direct): Add PREV_WHITE when parsing args. (cpp_output_token): Don't print leading whitespace. (cpp_output_line): Update. * cpplib.c (glue_header_name, parse_include, get__Pragma_string, do_include_common, do_line, do_ident, do_pragma, do_pragma_dependency, _cpp_do__Pragma, parse_answer, parse_assertion): Update. (get_token_no_padding): New. * cpplib.h (CPP_PADDING): New. (AVOID_LPASTE): Delete. (struct cpp_token): New union member source. (cpp_get_token): Update. * cppmacro.c (macro_arg): Convert to use pointers to const tokens. (builtin_macro, paste_all_tokens, paste_tokens, funlike_invocation_p, replace_args, quote_string, stringify_arg, parse_arg, next_context, enter_macro_context, expand_arg, _cpp_pop_context, cpp_scan_nooutput, _cpp_backup_tokens, _cpp_create_definition): Update. (push_arg_context): Delete. (padding_token, push_token_context, push_ptoken_context): New. (make_string_token, make_number_token): Update, rename. (cpp_get_token): Update to handle tokens as pointers to const, and insert padding appropriately. * cppmain.c (struct printer): New member prev. (check_multiline_token): Constify. (do_preprocessing, cb_line_change): Update. (scan_translation_unit): Update to handle spacing. * scan-decls.c (get_a_token): New. (skip_to_closing_brace, scan_decls): Update. * fix-header.c (read_scan_file): Update. * doc/cpp.texi: Update. * gcc.dg/cpp/macro10.c: New test. * gcc.dg/cpp/strify3.c: New test. * gcc.dg/cpp/spacing1.c: Add tests. * gcc.dg/cpp/19990703-1.c: Remove bogus test. * gcc.dg/cpp/20000625-2.c: Fudge to pass. From-SVN: r45793
2001-09-25 00:53:12 +02:00
if (token->type == CPP_NAME)
New macro expander. 2000-10-28 Neil Booth <neilb@earthling.net> New macro expander. * cpplib.c (struct answer): New. (struct if_stack): Use cpp_lexer_pos rather than line and col. Rename cmacro mi_cmacro. (struct directive, KANDR, STDC89, EXTENSION, COND, IF_COND, INCL, IN_I): New directive and flags. (skip_rest_of_line, check_eol, run_directive, glue_header_name, parse_answer, parse_assertion, find_answer): New functions. (parse_ifdef, detect_if_not_defined, validate_else): Remove. (lex_macro_node): New function to replace parse_ifdef and get_define_node. (_cpp_handle_directive): New function, combines _cpp_check_directive and _cpp_check_linemarker. (do_define, do_undef, parse_include, do_include, do_import, do_include_next, read_line_number, do_line, do_ident, do_pragma, do_pragma_once, do_pragma_poison, do_pragma_dependency): Update for new token getting interface. (do_ifdef, do_ifndef, do_if, do_else, do_endif, push_conditional) : Update for new multiple-include optimisation technique. (do_elif): Don't forget to invalidate controlling macros. (unwind_if_stack, cpp_defined, cpp_push_buffer, cpp_pop_buffer): Update. (parse_assertion, parse_answer, find_answer, _cpp_test_assertion): Functions to handle assertions with the new token interface. (do_assert, do_unassert): Use them. (cpp_define, _cpp_define_builtin, cpp_undef, cpp_assert, cpp_unassert): Use run_directive. (_cpp_init_stacks): Register directive names. Don't register special nodes. * cpperror.c (print_containing_files, _cpp_begin_message): Update to new position recording regime. (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line): Update for _cpp_begin_message changes. (cpp_type2name): Move to cpplex.c. * cppexp.c (parse_charconst): spec_nodes is no longer a pointer. (parse_defined): Update to handle new multiple include optimisation method. Remove poisoned identifier warning. (parse_assertion, TYPE_NAME): Delete. (lex): Update for multiple include optimisation, removal of CPP_DEFINED, to use _cpp_test_assertion for assertions and cpp_token_as_text. (_cpp_parse_expr): Update for MI optimisation, and to use op_as_text. (op_as_text): New function, to wrap cpp_token_as_text. * cppfiles.c (stack_include_file, _cpp_pop_file_buffer): Update for MI optimisation. (_cpp_execute_include): Take a token rather than 3 arguments. Fix segfault on diagnostic. (_cpp_compare_file_date): Take a token rather than 3 args. (cpp_read_file): Work correctly for zero-length files. * cpphash.c (_cpp_init_macros, _cpp_cleanup_macros): Rename _cpp_init_hashtable and _cpp_cleanup_hashtable. (cpp_lookup): Place identifiers at front of identifier pool for _cpp_lookup_with_hash. (_cpp_lookup_with_hash): Require identifiers to be at the front of the identifier pool. Commit the memory if not already in the hash table. * cppinit.c (cpp_reader_init): Move cpp_init_completed test to top. Initialise various members of cpp_reader, memory pools, and the special nodes. (cpp_printer_init): Delete. (cpp_cleanup): Update. (struct builtin, builtin_array, initialize_builtins): Update for new hashnode definition and builtin handling. (cpp_start_read, cpp_finish): Don't take or initialise a printer. Update. * cpplib.h (cpp_printer, cpp_toklist, CPP_DEFINED, BOL, PASTED, VAR_ARGS, BEG_OF_FILE, IN_DIRECTIVE, KNOWN_DIRECTIVE, T_VOID, T_SPECLINE, T_DATE, T_FILE, T_BASE_FILE, T_INCLUDE_LEVEL, T_TIME, T_STDC, T_OPERATOR, T_POISON, T_MACRO, T_ASSERTION): Delete. (struct cpp_pool, struct cpp_macro, struct cpp_lexer_pos, struct cpp_lookahead, CPP_DHASH, enum mi_state, enum mi_ind, NO_EXPAND, VARARGS_FIRST, struct cpp_token_with_pos, struct toklist, struct cpp_context, struct specnodes, TOKEN_LOOKAHEAD, TOKEN_BUFFSIZE, NODE_OPERATOR, NODE_POISONED, NODE_BUILTIN, NODE_DIAGNOSTIC, NT_VOID, NT_MACRO, NT_ASSERTION, enum builtin_type, cpp_can_paste): New. (struct cpp_token): Delete line and col members. (struct cpp_buffer): New member output_lineno. (struct lexer_state): Delete indented, in_lex_line, seen_dot. Add va_args_ok, poisoned_ok, prevent_expansion, parsing_args. (struct cpp_reader): New members lexer_pos, macro_pos, directive_pos, ident_pool, temp_string_pool, macro_pool, argument_pool, string_pool, base_context, context, directive, mi_state, mi_if_not_defined, mi_lexed, mi_cmacro, mi_ind_cmacro, la_read, la_write, la_unused, mlstring_pos, macro_buffer, macro_buffer_len. Delete members mls_line, mls_column, token_list, potential_control_macro, temp_tokens, temp_cap, temp_alloced, temp_used, first_directive_token, context_cap, cur_context, no_expand_level, paste_level, contexts, args, save_parameter_spellings, need_newline, . Change type of date, time and spec_nodes members. Change prototypes for include and ident callbacks. (struct cpp_hashnode): Change type of name. Remove union members expansion and code. Add members macro, operator and builtin. (cpp_token_len, cpp_token_as_text, cpp_spell_token, cpp_start_read, cpp_finish, cpp_avoid_paste, cpp_get_token, cpp_get_line, cpp_get_output_line, cpp_macro_definition, cpp_start_lookahead, cpp_stop_lookahead): New prototypes. (cpp_printer_init, cpp_dump_definition): Delete prototypes. (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move from cpphash.h. * cpphash.h (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move to cpplib.h. (enum spell_type, struct token_spelling, _cpp_token_spellings, TOKEN_SPELL, TOKEN_NAME, struct answer, FREE_ANSWER, KANDR, STDC89, EXTENSION, COND, EXPAND, INCL, COMMENTS, IN_I, struct directive, directive_handler, struct spec_nodes, _cpp_digraph_spellings, _cpp_free_temp_tokens, _cpp_init_input_buffer, _cpp_grow_token_buffer, _cpp_init_toklist, _cpp_clear_toklist, _cpp_expand_token_space, _cpp_expand_name_space, _cpp_equiv_tokens, _cpp_equiv_toklists, _cpp_process_directive, _cpp_run_directive, _cpp_get_line, _cpp_get_raw_token, _cpp_glue_header_name, _cpp_can_paste, _cpp_check_directive, _cpp_check_linemarker, _cpp_parse_assertion, _cpp_find_answer): Delete. (VALID_SIGN, ALIGN, POOL_FRONT, POOL_LIMIT, POOL_BASE, POOL_SIZE, POOL_USED, POOL_COMMIT, struct cpp_chunk, _cpp_lex_token, _cpp_init_pool, _cpp_free_pool, _cpp_pool_reserve, _cpp_pool_alloc, _cpp_next_chunk, _cpp_lock_pool, _cpp_unlock_pool, _cpp_test_assertion, _cpp_handle_directive, DSC): New. (struct include_file): New member defined. (DO_NOT_REREAD, _cpp_begin_message, _cpp_execute_include, _cpp_compare_file_date): Update. (_cpp_pop_context, _cpp_get_token, _cpp_free_lookaheads, _cpp_push_token): New. (_cpp_init_macros, _cpp_cleanup_macros): Rename to _cpp_init_hashtable, _cpp_cleanup_hashtable. * Makefile.in: Remove cppoutput.c. * cppoutput.c: Delete * fixheader.c (read_scan_file): Update for new cpp_get_token prototype. (recognized_function): New argument LINE. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new cpp_get_token prototype. * scan.h (recognized_function): Update prototype. * po/POTFILES.in: Remove cppoutput.c. From-SVN: r37098
2000-10-28 19:59:06 +02:00
{
node = token->val.node.node;
c-lex.c (cb_def_pragma): Update. * c-lex.c (cb_def_pragma): Update. (c_lex): Update, and skip padding. * cppexp.c (lex, parse_defined): Update, remove unused variable. * cpphash.h (struct toklist): Delete. (union utoken): New. (struct cpp_context): Update. (struct cpp_reader): New members eof, avoid_paste. (_cpp_temp_token): New. * cppinit.c (cpp_create_reader): Update. * cpplex.c (_cpp_temp_token): New. (_cpp_lex_direct): Add PREV_WHITE when parsing args. (cpp_output_token): Don't print leading whitespace. (cpp_output_line): Update. * cpplib.c (glue_header_name, parse_include, get__Pragma_string, do_include_common, do_line, do_ident, do_pragma, do_pragma_dependency, _cpp_do__Pragma, parse_answer, parse_assertion): Update. (get_token_no_padding): New. * cpplib.h (CPP_PADDING): New. (AVOID_LPASTE): Delete. (struct cpp_token): New union member source. (cpp_get_token): Update. * cppmacro.c (macro_arg): Convert to use pointers to const tokens. (builtin_macro, paste_all_tokens, paste_tokens, funlike_invocation_p, replace_args, quote_string, stringify_arg, parse_arg, next_context, enter_macro_context, expand_arg, _cpp_pop_context, cpp_scan_nooutput, _cpp_backup_tokens, _cpp_create_definition): Update. (push_arg_context): Delete. (padding_token, push_token_context, push_ptoken_context): New. (make_string_token, make_number_token): Update, rename. (cpp_get_token): Update to handle tokens as pointers to const, and insert padding appropriately. * cppmain.c (struct printer): New member prev. (check_multiline_token): Constify. (do_preprocessing, cb_line_change): Update. (scan_translation_unit): Update to handle spacing. * scan-decls.c (get_a_token): New. (skip_to_closing_brace, scan_decls): Update. * fix-header.c (read_scan_file): Update. * doc/cpp.texi: Update. * gcc.dg/cpp/macro10.c: New test. * gcc.dg/cpp/strify3.c: New test. * gcc.dg/cpp/spacing1.c: Add tests. * gcc.dg/cpp/19990703-1.c: Remove bogus test. * gcc.dg/cpp/20000625-2.c: Fudge to pass. From-SVN: r45793
2001-09-25 00:53:12 +02:00
if (paren && cpp_get_token (pfile)->type != CPP_CLOSE_PAREN)
New macro expander. 2000-10-28 Neil Booth <neilb@earthling.net> New macro expander. * cpplib.c (struct answer): New. (struct if_stack): Use cpp_lexer_pos rather than line and col. Rename cmacro mi_cmacro. (struct directive, KANDR, STDC89, EXTENSION, COND, IF_COND, INCL, IN_I): New directive and flags. (skip_rest_of_line, check_eol, run_directive, glue_header_name, parse_answer, parse_assertion, find_answer): New functions. (parse_ifdef, detect_if_not_defined, validate_else): Remove. (lex_macro_node): New function to replace parse_ifdef and get_define_node. (_cpp_handle_directive): New function, combines _cpp_check_directive and _cpp_check_linemarker. (do_define, do_undef, parse_include, do_include, do_import, do_include_next, read_line_number, do_line, do_ident, do_pragma, do_pragma_once, do_pragma_poison, do_pragma_dependency): Update for new token getting interface. (do_ifdef, do_ifndef, do_if, do_else, do_endif, push_conditional) : Update for new multiple-include optimisation technique. (do_elif): Don't forget to invalidate controlling macros. (unwind_if_stack, cpp_defined, cpp_push_buffer, cpp_pop_buffer): Update. (parse_assertion, parse_answer, find_answer, _cpp_test_assertion): Functions to handle assertions with the new token interface. (do_assert, do_unassert): Use them. (cpp_define, _cpp_define_builtin, cpp_undef, cpp_assert, cpp_unassert): Use run_directive. (_cpp_init_stacks): Register directive names. Don't register special nodes. * cpperror.c (print_containing_files, _cpp_begin_message): Update to new position recording regime. (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line): Update for _cpp_begin_message changes. (cpp_type2name): Move to cpplex.c. * cppexp.c (parse_charconst): spec_nodes is no longer a pointer. (parse_defined): Update to handle new multiple include optimisation method. Remove poisoned identifier warning. (parse_assertion, TYPE_NAME): Delete. (lex): Update for multiple include optimisation, removal of CPP_DEFINED, to use _cpp_test_assertion for assertions and cpp_token_as_text. (_cpp_parse_expr): Update for MI optimisation, and to use op_as_text. (op_as_text): New function, to wrap cpp_token_as_text. * cppfiles.c (stack_include_file, _cpp_pop_file_buffer): Update for MI optimisation. (_cpp_execute_include): Take a token rather than 3 arguments. Fix segfault on diagnostic. (_cpp_compare_file_date): Take a token rather than 3 args. (cpp_read_file): Work correctly for zero-length files. * cpphash.c (_cpp_init_macros, _cpp_cleanup_macros): Rename _cpp_init_hashtable and _cpp_cleanup_hashtable. (cpp_lookup): Place identifiers at front of identifier pool for _cpp_lookup_with_hash. (_cpp_lookup_with_hash): Require identifiers to be at the front of the identifier pool. Commit the memory if not already in the hash table. * cppinit.c (cpp_reader_init): Move cpp_init_completed test to top. Initialise various members of cpp_reader, memory pools, and the special nodes. (cpp_printer_init): Delete. (cpp_cleanup): Update. (struct builtin, builtin_array, initialize_builtins): Update for new hashnode definition and builtin handling. (cpp_start_read, cpp_finish): Don't take or initialise a printer. Update. * cpplib.h (cpp_printer, cpp_toklist, CPP_DEFINED, BOL, PASTED, VAR_ARGS, BEG_OF_FILE, IN_DIRECTIVE, KNOWN_DIRECTIVE, T_VOID, T_SPECLINE, T_DATE, T_FILE, T_BASE_FILE, T_INCLUDE_LEVEL, T_TIME, T_STDC, T_OPERATOR, T_POISON, T_MACRO, T_ASSERTION): Delete. (struct cpp_pool, struct cpp_macro, struct cpp_lexer_pos, struct cpp_lookahead, CPP_DHASH, enum mi_state, enum mi_ind, NO_EXPAND, VARARGS_FIRST, struct cpp_token_with_pos, struct toklist, struct cpp_context, struct specnodes, TOKEN_LOOKAHEAD, TOKEN_BUFFSIZE, NODE_OPERATOR, NODE_POISONED, NODE_BUILTIN, NODE_DIAGNOSTIC, NT_VOID, NT_MACRO, NT_ASSERTION, enum builtin_type, cpp_can_paste): New. (struct cpp_token): Delete line and col members. (struct cpp_buffer): New member output_lineno. (struct lexer_state): Delete indented, in_lex_line, seen_dot. Add va_args_ok, poisoned_ok, prevent_expansion, parsing_args. (struct cpp_reader): New members lexer_pos, macro_pos, directive_pos, ident_pool, temp_string_pool, macro_pool, argument_pool, string_pool, base_context, context, directive, mi_state, mi_if_not_defined, mi_lexed, mi_cmacro, mi_ind_cmacro, la_read, la_write, la_unused, mlstring_pos, macro_buffer, macro_buffer_len. Delete members mls_line, mls_column, token_list, potential_control_macro, temp_tokens, temp_cap, temp_alloced, temp_used, first_directive_token, context_cap, cur_context, no_expand_level, paste_level, contexts, args, save_parameter_spellings, need_newline, . Change type of date, time and spec_nodes members. Change prototypes for include and ident callbacks. (struct cpp_hashnode): Change type of name. Remove union members expansion and code. Add members macro, operator and builtin. (cpp_token_len, cpp_token_as_text, cpp_spell_token, cpp_start_read, cpp_finish, cpp_avoid_paste, cpp_get_token, cpp_get_line, cpp_get_output_line, cpp_macro_definition, cpp_start_lookahead, cpp_stop_lookahead): New prototypes. (cpp_printer_init, cpp_dump_definition): Delete prototypes. (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move from cpphash.h. * cpphash.h (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move to cpplib.h. (enum spell_type, struct token_spelling, _cpp_token_spellings, TOKEN_SPELL, TOKEN_NAME, struct answer, FREE_ANSWER, KANDR, STDC89, EXTENSION, COND, EXPAND, INCL, COMMENTS, IN_I, struct directive, directive_handler, struct spec_nodes, _cpp_digraph_spellings, _cpp_free_temp_tokens, _cpp_init_input_buffer, _cpp_grow_token_buffer, _cpp_init_toklist, _cpp_clear_toklist, _cpp_expand_token_space, _cpp_expand_name_space, _cpp_equiv_tokens, _cpp_equiv_toklists, _cpp_process_directive, _cpp_run_directive, _cpp_get_line, _cpp_get_raw_token, _cpp_glue_header_name, _cpp_can_paste, _cpp_check_directive, _cpp_check_linemarker, _cpp_parse_assertion, _cpp_find_answer): Delete. (VALID_SIGN, ALIGN, POOL_FRONT, POOL_LIMIT, POOL_BASE, POOL_SIZE, POOL_USED, POOL_COMMIT, struct cpp_chunk, _cpp_lex_token, _cpp_init_pool, _cpp_free_pool, _cpp_pool_reserve, _cpp_pool_alloc, _cpp_next_chunk, _cpp_lock_pool, _cpp_unlock_pool, _cpp_test_assertion, _cpp_handle_directive, DSC): New. (struct include_file): New member defined. (DO_NOT_REREAD, _cpp_begin_message, _cpp_execute_include, _cpp_compare_file_date): Update. (_cpp_pop_context, _cpp_get_token, _cpp_free_lookaheads, _cpp_push_token): New. (_cpp_init_macros, _cpp_cleanup_macros): Rename to _cpp_init_hashtable, _cpp_cleanup_hashtable. * Makefile.in: Remove cppoutput.c. * cppoutput.c: Delete * fixheader.c (read_scan_file): Update for new cpp_get_token prototype. (recognized_function): New argument LINE. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new cpp_get_token prototype. * scan.h (recognized_function): Update prototype. * po/POTFILES.in: Remove cppoutput.c. From-SVN: r37098
2000-10-28 19:59:06 +02:00
{
cpp_error (pfile, CPP_DL_ERROR, "missing ')' after \"defined\"");
c-lex.c (cb_def_pragma): Update. * c-lex.c (cb_def_pragma): Update. (c_lex): Update, and skip padding. * cppexp.c (lex, parse_defined): Update, remove unused variable. * cpphash.h (struct toklist): Delete. (union utoken): New. (struct cpp_context): Update. (struct cpp_reader): New members eof, avoid_paste. (_cpp_temp_token): New. * cppinit.c (cpp_create_reader): Update. * cpplex.c (_cpp_temp_token): New. (_cpp_lex_direct): Add PREV_WHITE when parsing args. (cpp_output_token): Don't print leading whitespace. (cpp_output_line): Update. * cpplib.c (glue_header_name, parse_include, get__Pragma_string, do_include_common, do_line, do_ident, do_pragma, do_pragma_dependency, _cpp_do__Pragma, parse_answer, parse_assertion): Update. (get_token_no_padding): New. * cpplib.h (CPP_PADDING): New. (AVOID_LPASTE): Delete. (struct cpp_token): New union member source. (cpp_get_token): Update. * cppmacro.c (macro_arg): Convert to use pointers to const tokens. (builtin_macro, paste_all_tokens, paste_tokens, funlike_invocation_p, replace_args, quote_string, stringify_arg, parse_arg, next_context, enter_macro_context, expand_arg, _cpp_pop_context, cpp_scan_nooutput, _cpp_backup_tokens, _cpp_create_definition): Update. (push_arg_context): Delete. (padding_token, push_token_context, push_ptoken_context): New. (make_string_token, make_number_token): Update, rename. (cpp_get_token): Update to handle tokens as pointers to const, and insert padding appropriately. * cppmain.c (struct printer): New member prev. (check_multiline_token): Constify. (do_preprocessing, cb_line_change): Update. (scan_translation_unit): Update to handle spacing. * scan-decls.c (get_a_token): New. (skip_to_closing_brace, scan_decls): Update. * fix-header.c (read_scan_file): Update. * doc/cpp.texi: Update. * gcc.dg/cpp/macro10.c: New test. * gcc.dg/cpp/strify3.c: New test. * gcc.dg/cpp/spacing1.c: Add tests. * gcc.dg/cpp/19990703-1.c: Remove bogus test. * gcc.dg/cpp/20000625-2.c: Fudge to pass. From-SVN: r45793
2001-09-25 00:53:12 +02:00
node = 0;
New macro expander. 2000-10-28 Neil Booth <neilb@earthling.net> New macro expander. * cpplib.c (struct answer): New. (struct if_stack): Use cpp_lexer_pos rather than line and col. Rename cmacro mi_cmacro. (struct directive, KANDR, STDC89, EXTENSION, COND, IF_COND, INCL, IN_I): New directive and flags. (skip_rest_of_line, check_eol, run_directive, glue_header_name, parse_answer, parse_assertion, find_answer): New functions. (parse_ifdef, detect_if_not_defined, validate_else): Remove. (lex_macro_node): New function to replace parse_ifdef and get_define_node. (_cpp_handle_directive): New function, combines _cpp_check_directive and _cpp_check_linemarker. (do_define, do_undef, parse_include, do_include, do_import, do_include_next, read_line_number, do_line, do_ident, do_pragma, do_pragma_once, do_pragma_poison, do_pragma_dependency): Update for new token getting interface. (do_ifdef, do_ifndef, do_if, do_else, do_endif, push_conditional) : Update for new multiple-include optimisation technique. (do_elif): Don't forget to invalidate controlling macros. (unwind_if_stack, cpp_defined, cpp_push_buffer, cpp_pop_buffer): Update. (parse_assertion, parse_answer, find_answer, _cpp_test_assertion): Functions to handle assertions with the new token interface. (do_assert, do_unassert): Use them. (cpp_define, _cpp_define_builtin, cpp_undef, cpp_assert, cpp_unassert): Use run_directive. (_cpp_init_stacks): Register directive names. Don't register special nodes. * cpperror.c (print_containing_files, _cpp_begin_message): Update to new position recording regime. (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line): Update for _cpp_begin_message changes. (cpp_type2name): Move to cpplex.c. * cppexp.c (parse_charconst): spec_nodes is no longer a pointer. (parse_defined): Update to handle new multiple include optimisation method. Remove poisoned identifier warning. (parse_assertion, TYPE_NAME): Delete. (lex): Update for multiple include optimisation, removal of CPP_DEFINED, to use _cpp_test_assertion for assertions and cpp_token_as_text. (_cpp_parse_expr): Update for MI optimisation, and to use op_as_text. (op_as_text): New function, to wrap cpp_token_as_text. * cppfiles.c (stack_include_file, _cpp_pop_file_buffer): Update for MI optimisation. (_cpp_execute_include): Take a token rather than 3 arguments. Fix segfault on diagnostic. (_cpp_compare_file_date): Take a token rather than 3 args. (cpp_read_file): Work correctly for zero-length files. * cpphash.c (_cpp_init_macros, _cpp_cleanup_macros): Rename _cpp_init_hashtable and _cpp_cleanup_hashtable. (cpp_lookup): Place identifiers at front of identifier pool for _cpp_lookup_with_hash. (_cpp_lookup_with_hash): Require identifiers to be at the front of the identifier pool. Commit the memory if not already in the hash table. * cppinit.c (cpp_reader_init): Move cpp_init_completed test to top. Initialise various members of cpp_reader, memory pools, and the special nodes. (cpp_printer_init): Delete. (cpp_cleanup): Update. (struct builtin, builtin_array, initialize_builtins): Update for new hashnode definition and builtin handling. (cpp_start_read, cpp_finish): Don't take or initialise a printer. Update. * cpplib.h (cpp_printer, cpp_toklist, CPP_DEFINED, BOL, PASTED, VAR_ARGS, BEG_OF_FILE, IN_DIRECTIVE, KNOWN_DIRECTIVE, T_VOID, T_SPECLINE, T_DATE, T_FILE, T_BASE_FILE, T_INCLUDE_LEVEL, T_TIME, T_STDC, T_OPERATOR, T_POISON, T_MACRO, T_ASSERTION): Delete. (struct cpp_pool, struct cpp_macro, struct cpp_lexer_pos, struct cpp_lookahead, CPP_DHASH, enum mi_state, enum mi_ind, NO_EXPAND, VARARGS_FIRST, struct cpp_token_with_pos, struct toklist, struct cpp_context, struct specnodes, TOKEN_LOOKAHEAD, TOKEN_BUFFSIZE, NODE_OPERATOR, NODE_POISONED, NODE_BUILTIN, NODE_DIAGNOSTIC, NT_VOID, NT_MACRO, NT_ASSERTION, enum builtin_type, cpp_can_paste): New. (struct cpp_token): Delete line and col members. (struct cpp_buffer): New member output_lineno. (struct lexer_state): Delete indented, in_lex_line, seen_dot. Add va_args_ok, poisoned_ok, prevent_expansion, parsing_args. (struct cpp_reader): New members lexer_pos, macro_pos, directive_pos, ident_pool, temp_string_pool, macro_pool, argument_pool, string_pool, base_context, context, directive, mi_state, mi_if_not_defined, mi_lexed, mi_cmacro, mi_ind_cmacro, la_read, la_write, la_unused, mlstring_pos, macro_buffer, macro_buffer_len. Delete members mls_line, mls_column, token_list, potential_control_macro, temp_tokens, temp_cap, temp_alloced, temp_used, first_directive_token, context_cap, cur_context, no_expand_level, paste_level, contexts, args, save_parameter_spellings, need_newline, . Change type of date, time and spec_nodes members. Change prototypes for include and ident callbacks. (struct cpp_hashnode): Change type of name. Remove union members expansion and code. Add members macro, operator and builtin. (cpp_token_len, cpp_token_as_text, cpp_spell_token, cpp_start_read, cpp_finish, cpp_avoid_paste, cpp_get_token, cpp_get_line, cpp_get_output_line, cpp_macro_definition, cpp_start_lookahead, cpp_stop_lookahead): New prototypes. (cpp_printer_init, cpp_dump_definition): Delete prototypes. (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move from cpphash.h. * cpphash.h (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move to cpplib.h. (enum spell_type, struct token_spelling, _cpp_token_spellings, TOKEN_SPELL, TOKEN_NAME, struct answer, FREE_ANSWER, KANDR, STDC89, EXTENSION, COND, EXPAND, INCL, COMMENTS, IN_I, struct directive, directive_handler, struct spec_nodes, _cpp_digraph_spellings, _cpp_free_temp_tokens, _cpp_init_input_buffer, _cpp_grow_token_buffer, _cpp_init_toklist, _cpp_clear_toklist, _cpp_expand_token_space, _cpp_expand_name_space, _cpp_equiv_tokens, _cpp_equiv_toklists, _cpp_process_directive, _cpp_run_directive, _cpp_get_line, _cpp_get_raw_token, _cpp_glue_header_name, _cpp_can_paste, _cpp_check_directive, _cpp_check_linemarker, _cpp_parse_assertion, _cpp_find_answer): Delete. (VALID_SIGN, ALIGN, POOL_FRONT, POOL_LIMIT, POOL_BASE, POOL_SIZE, POOL_USED, POOL_COMMIT, struct cpp_chunk, _cpp_lex_token, _cpp_init_pool, _cpp_free_pool, _cpp_pool_reserve, _cpp_pool_alloc, _cpp_next_chunk, _cpp_lock_pool, _cpp_unlock_pool, _cpp_test_assertion, _cpp_handle_directive, DSC): New. (struct include_file): New member defined. (DO_NOT_REREAD, _cpp_begin_message, _cpp_execute_include, _cpp_compare_file_date): Update. (_cpp_pop_context, _cpp_get_token, _cpp_free_lookaheads, _cpp_push_token): New. (_cpp_init_macros, _cpp_cleanup_macros): Rename to _cpp_init_hashtable, _cpp_cleanup_hashtable. * Makefile.in: Remove cppoutput.c. * cppoutput.c: Delete * fixheader.c (read_scan_file): Update for new cpp_get_token prototype. (recognized_function): New argument LINE. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new cpp_get_token prototype. * scan.h (recognized_function): Update prototype. * po/POTFILES.in: Remove cppoutput.c. From-SVN: r37098
2000-10-28 19:59:06 +02:00
}
}
else
{
cpp_error (pfile, CPP_DL_ERROR,
cpperror.c (print_location): Don't print include chain if line == 0. * cpperror.c (print_location): Don't print include chain if line == 0. (cpp_begin_message): Update to use DL_ macros. (cpp_ice, cpp_fatal, cpp_error_from_errno, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_notice, cpp_notice_from_errno): Remove. (cpp_error, cpp_error_with_line): Update to take a diagnostic level. (cpp_errno): New. * cppexp.c (CPP_ICE): Remove. (SYNTAX_ERROR, SYNTAX_ERROR2, parse_number, parse_defined, lex, integer_overflow, _cpp_parse_expr): Update. * cppfiles.c (read_include_file, find_include_file, handle_missing_header, _cpp_read_file, remap_filename): Update. * cpphash.h (enum error_type): Remove. (_cpp_begin_message): Update. * cppinit.c (append_include_chain, remove_dup_dirs, output_deps, cpp_handle_option, cpp_post_options): Update. * cpplex.c (trigraph_p, skip_escaped_newlines, skip_block_comment, skip_whitespace, parse_identifier, parse_slow, parse_string, _cpp_lex_direct, cpp_spell_token, maybe_read_ucs, cpp_parse_escape, cpp_interpret_charconst): Update. * cpplib.c (check_eol, directive_diagnostics, _cpp_handle_directive, lex_macro_node, do_undef, glue_header_name, parse_include, do_include_common, read_flag, do_line, do_linemarker, do_ident, cpp_register_pragma, do_pragma_once, do_pragma_system_header, do_pragma_poison, do_pragma_dependency, _cpp_do__Pragma, do_else, do_elif, do_endif, parse_answer, parse_assertion, do_assert, _cpp_pop_buffer, do_diagnostic): Update. * cpplib.h (DL_WARNING, DL_WARNING_SYSHDR, DL_PEDWARN, DL_ERROR, DL_FATAL, DL_ICE, DL_EXTRACT, DL_WARNING_P): New. (cpp_ice, cpp_fatal, cpp_error_from_errno, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_notice, cpp_notice_from_errno): Remove. (cpp_error, cpp_error_with_line): Update to take a diagnostic level. (cpp_errno): New. * cppmacro.c (builtin_macro, stringify_arg, paste_all_tokens, collect_args, enter_macro_context, save_parameter, parse_params, _cpp_create_definition, check_trad_stringification, cpp_macro_definition): Update. * cppmain.c (cpp_preprocess_file): Update. * fix-header.c (read_scan_file): Update. From-SVN: r52302
2002-04-14 20:42:47 +02:00
"operator \"defined\" requires an identifier");
c-lex.c (cb_def_pragma): Update. * c-lex.c (cb_def_pragma): Update. (c_lex): Update, and skip padding. * cppexp.c (lex, parse_defined): Update, remove unused variable. * cpphash.h (struct toklist): Delete. (union utoken): New. (struct cpp_context): Update. (struct cpp_reader): New members eof, avoid_paste. (_cpp_temp_token): New. * cppinit.c (cpp_create_reader): Update. * cpplex.c (_cpp_temp_token): New. (_cpp_lex_direct): Add PREV_WHITE when parsing args. (cpp_output_token): Don't print leading whitespace. (cpp_output_line): Update. * cpplib.c (glue_header_name, parse_include, get__Pragma_string, do_include_common, do_line, do_ident, do_pragma, do_pragma_dependency, _cpp_do__Pragma, parse_answer, parse_assertion): Update. (get_token_no_padding): New. * cpplib.h (CPP_PADDING): New. (AVOID_LPASTE): Delete. (struct cpp_token): New union member source. (cpp_get_token): Update. * cppmacro.c (macro_arg): Convert to use pointers to const tokens. (builtin_macro, paste_all_tokens, paste_tokens, funlike_invocation_p, replace_args, quote_string, stringify_arg, parse_arg, next_context, enter_macro_context, expand_arg, _cpp_pop_context, cpp_scan_nooutput, _cpp_backup_tokens, _cpp_create_definition): Update. (push_arg_context): Delete. (padding_token, push_token_context, push_ptoken_context): New. (make_string_token, make_number_token): Update, rename. (cpp_get_token): Update to handle tokens as pointers to const, and insert padding appropriately. * cppmain.c (struct printer): New member prev. (check_multiline_token): Constify. (do_preprocessing, cb_line_change): Update. (scan_translation_unit): Update to handle spacing. * scan-decls.c (get_a_token): New. (skip_to_closing_brace, scan_decls): Update. * fix-header.c (read_scan_file): Update. * doc/cpp.texi: Update. * gcc.dg/cpp/macro10.c: New test. * gcc.dg/cpp/strify3.c: New test. * gcc.dg/cpp/spacing1.c: Add tests. * gcc.dg/cpp/19990703-1.c: Remove bogus test. * gcc.dg/cpp/20000625-2.c: Fudge to pass. From-SVN: r45793
2001-09-25 00:53:12 +02:00
if (token->flags & NAMED_OP)
{
cpp_token op;
op.flags = 0;
c-lex.c (cb_def_pragma): Update. * c-lex.c (cb_def_pragma): Update. (c_lex): Update, and skip padding. * cppexp.c (lex, parse_defined): Update, remove unused variable. * cpphash.h (struct toklist): Delete. (union utoken): New. (struct cpp_context): Update. (struct cpp_reader): New members eof, avoid_paste. (_cpp_temp_token): New. * cppinit.c (cpp_create_reader): Update. * cpplex.c (_cpp_temp_token): New. (_cpp_lex_direct): Add PREV_WHITE when parsing args. (cpp_output_token): Don't print leading whitespace. (cpp_output_line): Update. * cpplib.c (glue_header_name, parse_include, get__Pragma_string, do_include_common, do_line, do_ident, do_pragma, do_pragma_dependency, _cpp_do__Pragma, parse_answer, parse_assertion): Update. (get_token_no_padding): New. * cpplib.h (CPP_PADDING): New. (AVOID_LPASTE): Delete. (struct cpp_token): New union member source. (cpp_get_token): Update. * cppmacro.c (macro_arg): Convert to use pointers to const tokens. (builtin_macro, paste_all_tokens, paste_tokens, funlike_invocation_p, replace_args, quote_string, stringify_arg, parse_arg, next_context, enter_macro_context, expand_arg, _cpp_pop_context, cpp_scan_nooutput, _cpp_backup_tokens, _cpp_create_definition): Update. (push_arg_context): Delete. (padding_token, push_token_context, push_ptoken_context): New. (make_string_token, make_number_token): Update, rename. (cpp_get_token): Update to handle tokens as pointers to const, and insert padding appropriately. * cppmain.c (struct printer): New member prev. (check_multiline_token): Constify. (do_preprocessing, cb_line_change): Update. (scan_translation_unit): Update to handle spacing. * scan-decls.c (get_a_token): New. (skip_to_closing_brace, scan_decls): Update. * fix-header.c (read_scan_file): Update. * doc/cpp.texi: Update. * gcc.dg/cpp/macro10.c: New test. * gcc.dg/cpp/strify3.c: New test. * gcc.dg/cpp/spacing1.c: Add tests. * gcc.dg/cpp/19990703-1.c: Remove bogus test. * gcc.dg/cpp/20000625-2.c: Fudge to pass. From-SVN: r45793
2001-09-25 00:53:12 +02:00
op.type = token->type;
cpp_error (pfile, CPP_DL_ERROR,
"(\"%s\" is an alternative token for \"%s\" in C++)",
c-lex.c (cb_def_pragma): Update. * c-lex.c (cb_def_pragma): Update. (c_lex): Update, and skip padding. * cppexp.c (lex, parse_defined): Update, remove unused variable. * cpphash.h (struct toklist): Delete. (union utoken): New. (struct cpp_context): Update. (struct cpp_reader): New members eof, avoid_paste. (_cpp_temp_token): New. * cppinit.c (cpp_create_reader): Update. * cpplex.c (_cpp_temp_token): New. (_cpp_lex_direct): Add PREV_WHITE when parsing args. (cpp_output_token): Don't print leading whitespace. (cpp_output_line): Update. * cpplib.c (glue_header_name, parse_include, get__Pragma_string, do_include_common, do_line, do_ident, do_pragma, do_pragma_dependency, _cpp_do__Pragma, parse_answer, parse_assertion): Update. (get_token_no_padding): New. * cpplib.h (CPP_PADDING): New. (AVOID_LPASTE): Delete. (struct cpp_token): New union member source. (cpp_get_token): Update. * cppmacro.c (macro_arg): Convert to use pointers to const tokens. (builtin_macro, paste_all_tokens, paste_tokens, funlike_invocation_p, replace_args, quote_string, stringify_arg, parse_arg, next_context, enter_macro_context, expand_arg, _cpp_pop_context, cpp_scan_nooutput, _cpp_backup_tokens, _cpp_create_definition): Update. (push_arg_context): Delete. (padding_token, push_token_context, push_ptoken_context): New. (make_string_token, make_number_token): Update, rename. (cpp_get_token): Update to handle tokens as pointers to const, and insert padding appropriately. * cppmain.c (struct printer): New member prev. (check_multiline_token): Constify. (do_preprocessing, cb_line_change): Update. (scan_translation_unit): Update to handle spacing. * scan-decls.c (get_a_token): New. (skip_to_closing_brace, scan_decls): Update. * fix-header.c (read_scan_file): Update. * doc/cpp.texi: Update. * gcc.dg/cpp/macro10.c: New test. * gcc.dg/cpp/strify3.c: New test. * gcc.dg/cpp/spacing1.c: Add tests. * gcc.dg/cpp/19990703-1.c: Remove bogus test. * gcc.dg/cpp/20000625-2.c: Fudge to pass. From-SVN: r45793
2001-09-25 00:53:12 +02:00
cpp_token_as_text (pfile, token),
cpp_token_as_text (pfile, &op));
}
}
cppexp.c (parse_assertion): New. * cppexp.c (parse_assertion): New. (lex): Call it for CPP_HASH. Remove CPP_ASSERTION case. (_cpp_parse_expr): Remove case '#'. Don't set parsing_if_directive. * cpphash.c (collect_objlike_expansion, collect_funlike_expansion, collect_params, _cpp_create_definition): The list no longer has a trailing VSPACE token. * cpphash.h (enum node_type): Add T_ASSERTION. (struct hashnode): Remove aschain, add pred. (struct predicate): New. Update prototypes. * cpplex.c (expand_token_space): Handle both offset and nonoffset lists. (init_token_list, _cpp_free_token_list, _cpp_parse_assertion): Delete. (_cpp_init_toklist, _cpp_clear_toklist, _cpp_free_toklist, _cpp_slice_toklist, _cpp_squeeze_toklist, _cpp_equiv_tokens, _cpp_equiv_toklists): New. (_cpp_scan_line): Rename to _cpp_scan_until; add ability to stop at any single-character token, not just newline. (_cpp_lex_token): Remove special cases for #define and #if. (cpp_get_token): Expect # as a separate token type. Remove DIRECTIVE case. (_cpp_get_directive_token): Remove DIRECTIVE case. (_cpp_lex_line, _cpp_lex_file, _cpp_init_input_buffer): Update. * cpplib.c (_cpp_check_directive): Set dirno and SYNTAX_INCLUDE bit of flags, not dir_handler and dir_flags. (_cpp_handle_directive): Run # <number> through the same logic as normal directives. (do_define): Don't set parsing_define_directive. Use _cpp_scan_until. The list does not have a VSPACE at the end. (do_if): Save, clear, and restore only_seen_white around _cpp_parse_expr. (skip_if_group): s/CPP_DIRECTIVE/CPP_HASH/ (do_assert, do_unassert): Rewrite. * cpplib.h (TTYPE_TABLE): Remove CPP_ASSERTION. (LIST_OFFSET): New flag. (struct cpp_toklist): Replace dir_handler and dir_flags with dirno and flags. (struct cpp_reader): Remove parsing_if_directive and parsing_define_directive. From-SVN: r33984
2000-05-18 17:55:46 +02:00
if (node)
cppexp.c (parse_assertion): New. * cppexp.c (parse_assertion): New. (lex): Call it for CPP_HASH. Remove CPP_ASSERTION case. (_cpp_parse_expr): Remove case '#'. Don't set parsing_if_directive. * cpphash.c (collect_objlike_expansion, collect_funlike_expansion, collect_params, _cpp_create_definition): The list no longer has a trailing VSPACE token. * cpphash.h (enum node_type): Add T_ASSERTION. (struct hashnode): Remove aschain, add pred. (struct predicate): New. Update prototypes. * cpplex.c (expand_token_space): Handle both offset and nonoffset lists. (init_token_list, _cpp_free_token_list, _cpp_parse_assertion): Delete. (_cpp_init_toklist, _cpp_clear_toklist, _cpp_free_toklist, _cpp_slice_toklist, _cpp_squeeze_toklist, _cpp_equiv_tokens, _cpp_equiv_toklists): New. (_cpp_scan_line): Rename to _cpp_scan_until; add ability to stop at any single-character token, not just newline. (_cpp_lex_token): Remove special cases for #define and #if. (cpp_get_token): Expect # as a separate token type. Remove DIRECTIVE case. (_cpp_get_directive_token): Remove DIRECTIVE case. (_cpp_lex_line, _cpp_lex_file, _cpp_init_input_buffer): Update. * cpplib.c (_cpp_check_directive): Set dirno and SYNTAX_INCLUDE bit of flags, not dir_handler and dir_flags. (_cpp_handle_directive): Run # <number> through the same logic as normal directives. (do_define): Don't set parsing_define_directive. Use _cpp_scan_until. The list does not have a VSPACE at the end. (do_if): Save, clear, and restore only_seen_white around _cpp_parse_expr. (skip_if_group): s/CPP_DIRECTIVE/CPP_HASH/ (do_assert, do_unassert): Rewrite. * cpplib.h (TTYPE_TABLE): Remove CPP_ASSERTION. (LIST_OFFSET): New flag. (struct cpp_toklist): Replace dir_handler and dir_flags with dirno and flags. (struct cpp_reader): Remove parsing_if_directive and parsing_define_directive. From-SVN: r33984
2000-05-18 17:55:46 +02:00
{
if (pfile->context != initial_context && CPP_PEDANTIC (pfile))
cpp_error (pfile, CPP_DL_WARNING,
cpperror.c (print_location): Don't print include chain if line == 0. * cpperror.c (print_location): Don't print include chain if line == 0. (cpp_begin_message): Update to use DL_ macros. (cpp_ice, cpp_fatal, cpp_error_from_errno, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_notice, cpp_notice_from_errno): Remove. (cpp_error, cpp_error_with_line): Update to take a diagnostic level. (cpp_errno): New. * cppexp.c (CPP_ICE): Remove. (SYNTAX_ERROR, SYNTAX_ERROR2, parse_number, parse_defined, lex, integer_overflow, _cpp_parse_expr): Update. * cppfiles.c (read_include_file, find_include_file, handle_missing_header, _cpp_read_file, remap_filename): Update. * cpphash.h (enum error_type): Remove. (_cpp_begin_message): Update. * cppinit.c (append_include_chain, remove_dup_dirs, output_deps, cpp_handle_option, cpp_post_options): Update. * cpplex.c (trigraph_p, skip_escaped_newlines, skip_block_comment, skip_whitespace, parse_identifier, parse_slow, parse_string, _cpp_lex_direct, cpp_spell_token, maybe_read_ucs, cpp_parse_escape, cpp_interpret_charconst): Update. * cpplib.c (check_eol, directive_diagnostics, _cpp_handle_directive, lex_macro_node, do_undef, glue_header_name, parse_include, do_include_common, read_flag, do_line, do_linemarker, do_ident, cpp_register_pragma, do_pragma_once, do_pragma_system_header, do_pragma_poison, do_pragma_dependency, _cpp_do__Pragma, do_else, do_elif, do_endif, parse_answer, parse_assertion, do_assert, _cpp_pop_buffer, do_diagnostic): Update. * cpplib.h (DL_WARNING, DL_WARNING_SYSHDR, DL_PEDWARN, DL_ERROR, DL_FATAL, DL_ICE, DL_EXTRACT, DL_WARNING_P): New. (cpp_ice, cpp_fatal, cpp_error_from_errno, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_notice, cpp_notice_from_errno): Remove. (cpp_error, cpp_error_with_line): Update to take a diagnostic level. (cpp_errno): New. * cppmacro.c (builtin_macro, stringify_arg, paste_all_tokens, collect_args, enter_macro_context, save_parameter, parse_params, _cpp_create_definition, check_trad_stringification, cpp_macro_definition): Update. * cppmain.c (cpp_preprocess_file): Update. * fix-header.c (read_scan_file): Update. From-SVN: r52302
2002-04-14 20:42:47 +02:00
"this use of \"defined\" may not be portable");
_cpp_mark_macro_used (node);
if (!(node->flags & NODE_USED))
{
node->flags |= NODE_USED;
if (node->type == NT_MACRO)
{
if ((node->flags & NODE_BUILTIN)
&& pfile->cb.user_builtin_macro)
pfile->cb.user_builtin_macro (pfile, node);
if (pfile->cb.used_define)
pfile->cb.used_define (pfile, pfile->directive_line, node);
}
else
{
if (pfile->cb.used_undef)
pfile->cb.used_undef (pfile, pfile->directive_line, node);
}
}
/* A possible controlling macro of the form #if !defined ().
_cpp_parse_expr checks there was no other junk on the line. */
pfile->mi_ind_cmacro = node;
cppexp.c (parse_assertion): New. * cppexp.c (parse_assertion): New. (lex): Call it for CPP_HASH. Remove CPP_ASSERTION case. (_cpp_parse_expr): Remove case '#'. Don't set parsing_if_directive. * cpphash.c (collect_objlike_expansion, collect_funlike_expansion, collect_params, _cpp_create_definition): The list no longer has a trailing VSPACE token. * cpphash.h (enum node_type): Add T_ASSERTION. (struct hashnode): Remove aschain, add pred. (struct predicate): New. Update prototypes. * cpplex.c (expand_token_space): Handle both offset and nonoffset lists. (init_token_list, _cpp_free_token_list, _cpp_parse_assertion): Delete. (_cpp_init_toklist, _cpp_clear_toklist, _cpp_free_toklist, _cpp_slice_toklist, _cpp_squeeze_toklist, _cpp_equiv_tokens, _cpp_equiv_toklists): New. (_cpp_scan_line): Rename to _cpp_scan_until; add ability to stop at any single-character token, not just newline. (_cpp_lex_token): Remove special cases for #define and #if. (cpp_get_token): Expect # as a separate token type. Remove DIRECTIVE case. (_cpp_get_directive_token): Remove DIRECTIVE case. (_cpp_lex_line, _cpp_lex_file, _cpp_init_input_buffer): Update. * cpplib.c (_cpp_check_directive): Set dirno and SYNTAX_INCLUDE bit of flags, not dir_handler and dir_flags. (_cpp_handle_directive): Run # <number> through the same logic as normal directives. (do_define): Don't set parsing_define_directive. Use _cpp_scan_until. The list does not have a VSPACE at the end. (do_if): Save, clear, and restore only_seen_white around _cpp_parse_expr. (skip_if_group): s/CPP_DIRECTIVE/CPP_HASH/ (do_assert, do_unassert): Rewrite. * cpplib.h (TTYPE_TABLE): Remove CPP_ASSERTION. (LIST_OFFSET): New flag. (struct cpp_toklist): Replace dir_handler and dir_flags with dirno and flags. (struct cpp_reader): Remove parsing_if_directive and parsing_define_directive. From-SVN: r33984
2000-05-18 17:55:46 +02:00
}
New macro expander. 2000-10-28 Neil Booth <neilb@earthling.net> New macro expander. * cpplib.c (struct answer): New. (struct if_stack): Use cpp_lexer_pos rather than line and col. Rename cmacro mi_cmacro. (struct directive, KANDR, STDC89, EXTENSION, COND, IF_COND, INCL, IN_I): New directive and flags. (skip_rest_of_line, check_eol, run_directive, glue_header_name, parse_answer, parse_assertion, find_answer): New functions. (parse_ifdef, detect_if_not_defined, validate_else): Remove. (lex_macro_node): New function to replace parse_ifdef and get_define_node. (_cpp_handle_directive): New function, combines _cpp_check_directive and _cpp_check_linemarker. (do_define, do_undef, parse_include, do_include, do_import, do_include_next, read_line_number, do_line, do_ident, do_pragma, do_pragma_once, do_pragma_poison, do_pragma_dependency): Update for new token getting interface. (do_ifdef, do_ifndef, do_if, do_else, do_endif, push_conditional) : Update for new multiple-include optimisation technique. (do_elif): Don't forget to invalidate controlling macros. (unwind_if_stack, cpp_defined, cpp_push_buffer, cpp_pop_buffer): Update. (parse_assertion, parse_answer, find_answer, _cpp_test_assertion): Functions to handle assertions with the new token interface. (do_assert, do_unassert): Use them. (cpp_define, _cpp_define_builtin, cpp_undef, cpp_assert, cpp_unassert): Use run_directive. (_cpp_init_stacks): Register directive names. Don't register special nodes. * cpperror.c (print_containing_files, _cpp_begin_message): Update to new position recording regime. (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line): Update for _cpp_begin_message changes. (cpp_type2name): Move to cpplex.c. * cppexp.c (parse_charconst): spec_nodes is no longer a pointer. (parse_defined): Update to handle new multiple include optimisation method. Remove poisoned identifier warning. (parse_assertion, TYPE_NAME): Delete. (lex): Update for multiple include optimisation, removal of CPP_DEFINED, to use _cpp_test_assertion for assertions and cpp_token_as_text. (_cpp_parse_expr): Update for MI optimisation, and to use op_as_text. (op_as_text): New function, to wrap cpp_token_as_text. * cppfiles.c (stack_include_file, _cpp_pop_file_buffer): Update for MI optimisation. (_cpp_execute_include): Take a token rather than 3 arguments. Fix segfault on diagnostic. (_cpp_compare_file_date): Take a token rather than 3 args. (cpp_read_file): Work correctly for zero-length files. * cpphash.c (_cpp_init_macros, _cpp_cleanup_macros): Rename _cpp_init_hashtable and _cpp_cleanup_hashtable. (cpp_lookup): Place identifiers at front of identifier pool for _cpp_lookup_with_hash. (_cpp_lookup_with_hash): Require identifiers to be at the front of the identifier pool. Commit the memory if not already in the hash table. * cppinit.c (cpp_reader_init): Move cpp_init_completed test to top. Initialise various members of cpp_reader, memory pools, and the special nodes. (cpp_printer_init): Delete. (cpp_cleanup): Update. (struct builtin, builtin_array, initialize_builtins): Update for new hashnode definition and builtin handling. (cpp_start_read, cpp_finish): Don't take or initialise a printer. Update. * cpplib.h (cpp_printer, cpp_toklist, CPP_DEFINED, BOL, PASTED, VAR_ARGS, BEG_OF_FILE, IN_DIRECTIVE, KNOWN_DIRECTIVE, T_VOID, T_SPECLINE, T_DATE, T_FILE, T_BASE_FILE, T_INCLUDE_LEVEL, T_TIME, T_STDC, T_OPERATOR, T_POISON, T_MACRO, T_ASSERTION): Delete. (struct cpp_pool, struct cpp_macro, struct cpp_lexer_pos, struct cpp_lookahead, CPP_DHASH, enum mi_state, enum mi_ind, NO_EXPAND, VARARGS_FIRST, struct cpp_token_with_pos, struct toklist, struct cpp_context, struct specnodes, TOKEN_LOOKAHEAD, TOKEN_BUFFSIZE, NODE_OPERATOR, NODE_POISONED, NODE_BUILTIN, NODE_DIAGNOSTIC, NT_VOID, NT_MACRO, NT_ASSERTION, enum builtin_type, cpp_can_paste): New. (struct cpp_token): Delete line and col members. (struct cpp_buffer): New member output_lineno. (struct lexer_state): Delete indented, in_lex_line, seen_dot. Add va_args_ok, poisoned_ok, prevent_expansion, parsing_args. (struct cpp_reader): New members lexer_pos, macro_pos, directive_pos, ident_pool, temp_string_pool, macro_pool, argument_pool, string_pool, base_context, context, directive, mi_state, mi_if_not_defined, mi_lexed, mi_cmacro, mi_ind_cmacro, la_read, la_write, la_unused, mlstring_pos, macro_buffer, macro_buffer_len. Delete members mls_line, mls_column, token_list, potential_control_macro, temp_tokens, temp_cap, temp_alloced, temp_used, first_directive_token, context_cap, cur_context, no_expand_level, paste_level, contexts, args, save_parameter_spellings, need_newline, . Change type of date, time and spec_nodes members. Change prototypes for include and ident callbacks. (struct cpp_hashnode): Change type of name. Remove union members expansion and code. Add members macro, operator and builtin. (cpp_token_len, cpp_token_as_text, cpp_spell_token, cpp_start_read, cpp_finish, cpp_avoid_paste, cpp_get_token, cpp_get_line, cpp_get_output_line, cpp_macro_definition, cpp_start_lookahead, cpp_stop_lookahead): New prototypes. (cpp_printer_init, cpp_dump_definition): Delete prototypes. (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move from cpphash.h. * cpphash.h (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move to cpplib.h. (enum spell_type, struct token_spelling, _cpp_token_spellings, TOKEN_SPELL, TOKEN_NAME, struct answer, FREE_ANSWER, KANDR, STDC89, EXTENSION, COND, EXPAND, INCL, COMMENTS, IN_I, struct directive, directive_handler, struct spec_nodes, _cpp_digraph_spellings, _cpp_free_temp_tokens, _cpp_init_input_buffer, _cpp_grow_token_buffer, _cpp_init_toklist, _cpp_clear_toklist, _cpp_expand_token_space, _cpp_expand_name_space, _cpp_equiv_tokens, _cpp_equiv_toklists, _cpp_process_directive, _cpp_run_directive, _cpp_get_line, _cpp_get_raw_token, _cpp_glue_header_name, _cpp_can_paste, _cpp_check_directive, _cpp_check_linemarker, _cpp_parse_assertion, _cpp_find_answer): Delete. (VALID_SIGN, ALIGN, POOL_FRONT, POOL_LIMIT, POOL_BASE, POOL_SIZE, POOL_USED, POOL_COMMIT, struct cpp_chunk, _cpp_lex_token, _cpp_init_pool, _cpp_free_pool, _cpp_pool_reserve, _cpp_pool_alloc, _cpp_next_chunk, _cpp_lock_pool, _cpp_unlock_pool, _cpp_test_assertion, _cpp_handle_directive, DSC): New. (struct include_file): New member defined. (DO_NOT_REREAD, _cpp_begin_message, _cpp_execute_include, _cpp_compare_file_date): Update. (_cpp_pop_context, _cpp_get_token, _cpp_free_lookaheads, _cpp_push_token): New. (_cpp_init_macros, _cpp_cleanup_macros): Rename to _cpp_init_hashtable, _cpp_cleanup_hashtable. * Makefile.in: Remove cppoutput.c. * cppoutput.c: Delete * fixheader.c (read_scan_file): Update for new cpp_get_token prototype. (recognized_function): New argument LINE. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new cpp_get_token prototype. * scan.h (recognized_function): Update prototype. * po/POTFILES.in: Remove cppoutput.c. From-SVN: r37098
2000-10-28 19:59:06 +02:00
pfile->state.prevent_expansion--;
/* Do not treat conditional macros as being defined. This is due to the
powerpc and spu ports using conditional macros for 'vector', 'bool', and
'pixel' to act as conditional keywords. This messes up tests like #ifndef
bool. */
result.unsignedp = false;
result.high = 0;
result.overflow = false;
result.low = (node && node->type == NT_MACRO
&& (node->flags & NODE_CONDITIONAL) == 0);
return result;
cppexp.c (parse_assertion): New. * cppexp.c (parse_assertion): New. (lex): Call it for CPP_HASH. Remove CPP_ASSERTION case. (_cpp_parse_expr): Remove case '#'. Don't set parsing_if_directive. * cpphash.c (collect_objlike_expansion, collect_funlike_expansion, collect_params, _cpp_create_definition): The list no longer has a trailing VSPACE token. * cpphash.h (enum node_type): Add T_ASSERTION. (struct hashnode): Remove aschain, add pred. (struct predicate): New. Update prototypes. * cpplex.c (expand_token_space): Handle both offset and nonoffset lists. (init_token_list, _cpp_free_token_list, _cpp_parse_assertion): Delete. (_cpp_init_toklist, _cpp_clear_toklist, _cpp_free_toklist, _cpp_slice_toklist, _cpp_squeeze_toklist, _cpp_equiv_tokens, _cpp_equiv_toklists): New. (_cpp_scan_line): Rename to _cpp_scan_until; add ability to stop at any single-character token, not just newline. (_cpp_lex_token): Remove special cases for #define and #if. (cpp_get_token): Expect # as a separate token type. Remove DIRECTIVE case. (_cpp_get_directive_token): Remove DIRECTIVE case. (_cpp_lex_line, _cpp_lex_file, _cpp_init_input_buffer): Update. * cpplib.c (_cpp_check_directive): Set dirno and SYNTAX_INCLUDE bit of flags, not dir_handler and dir_flags. (_cpp_handle_directive): Run # <number> through the same logic as normal directives. (do_define): Don't set parsing_define_directive. Use _cpp_scan_until. The list does not have a VSPACE at the end. (do_if): Save, clear, and restore only_seen_white around _cpp_parse_expr. (skip_if_group): s/CPP_DIRECTIVE/CPP_HASH/ (do_assert, do_unassert): Rewrite. * cpplib.h (TTYPE_TABLE): Remove CPP_ASSERTION. (LIST_OFFSET): New flag. (struct cpp_toklist): Replace dir_handler and dir_flags with dirno and flags. (struct cpp_reader): Remove parsing_if_directive and parsing_define_directive. From-SVN: r33984
2000-05-18 17:55:46 +02:00
}
/* Convert a token into a CPP_NUMBER (an interpreted preprocessing
number or character constant, or the result of the "defined" or "#"
operators). */
static cpp_num
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
eval_token (cpp_reader *pfile, const cpp_token *token,
source_location virtual_location)
1995-03-16 22:59:07 +01:00
{
cpp_num result;
unsigned int temp;
int unsignedp = 0;
top level: 2000-07-03 Zack Weinberg <zack@wolery.cumb.org> * fix-header.c (struct partial_proto): Remove unnecessary fields. (recognized_extern, recognized_function, read_scan_file): Update for new scheme. (check_protection): It's still a multiple include guard even if it doesn't always trigger. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new scheme. * scan.h: Declare struct cpp_token. Update prototypes. 2000-07-03 Neil Booth <neilb@earthling.net> Zack Weinberg <zack@wolery.cumb.org> Complete overhaul of the lexer and macro expander. * cpphash.c (object_defn, funct_defn, push_macro_expansion, arg, arglist, argdata, reflist, collect_objlike_expansion, collect_funlike_expansion, collect_params, warn_trad_stringify, trad_stringify, duplicate_arg_p, add_pat, unsafe_chars, macarg, compare_defs, special_symbol, scan_arguments, stringify, funlike_macroexpand, _cpp_quote_string, monthnames): Delete. (cpp_lookup, _cpp_free_definition, dump_funlike_macro, _cpp_create_definition, _cpp_dump_definition, dump_hash_helper): Adjust. (find_param, count_params, parse_define, var_args_str, check_macro_redefinition, save_expansion): New. * cpplex.c (skip_block_comment, skip_line_comment, parse_name, parse_string, output_line_command, trigraph_replace, lex_line, cpp_push_buffer, cpp_pop_buffer, cpp_output_tokens, cpp_scan_buffer_nooutput, cpp_scan_buffer, cpp_free_toklist, cpp_idcmp, _cpp_get_directive_token, _cpp_init_input_buffer, _cpp_skip_rest_of_line): Modify. (maybe_macroexpand, skip_comment, copy_comment, skip_string, find_position, null_warning, bump_column, expand_name_space, pedantic_whitespace, _cpp_output_list, _cpp_slice_toklist, _cpp_squeeze_toklist, _cpp_scan_until, _cpp_skip_hspace, _cpp_parse_name, _cpp_lex_token, cpp_get_non_space_token, _cpp_prescan): Delete. (dump_param_spelling, process_directive, lex_next, is_macro_disabled, stringify_arg, expand_context_stack, output_token, make_string_token, alloc_number_token, special_symbol, duplicate_token, maybe_paste_with_next, can_paste, prevent_macro_expansion, restore_macro_expansion, get_temp_token, release_temp_tokens, quote_string, token_names, token_spellings, _cpp_expand_name_space, _cpp_glue_header_name, _cpp_reserve_name_space, digraph_spellings, trigraph_ok, skip_whitespace, save_comment, placemarker_token, eof_token, cpp_context, macro_args, get_raw_token, parse_arg, parse_args, save_token, push_arg_context, push_macro_context, pop_context, do_pop_context, free_macro_args, _cpp_get_line, _cpp_run_directive): New. * cpplib.c (validate_else, parse_include, push_conditional, pass_thru_directive, read_line_number, parse_ifdef, detect_if_not_defined, _cpp_check_directive, do_define, do_undef, do_include, do_import, do_include_next, do_error, do_warning, do_ident, do_pragma, pragma_dispatch, gcc_pragmas, top_pragmas, do_pragma_gcc, do_pragma_implementation, do_pragma_poison, do_pragma_system_header, do_pragma_dependency, do_sccs, do_ifdef, do_ifndef, do_else, dl_elif, do_endif, _cpp_unwind_if_stack, do_assert, do_unassert, cpp_define, cpp_undef, cpp_assert, cpp_unassert, cpp_defined): Update for new scheme. (strtoul_for_line, get_define_node, dump_macro_name, _cpp_check_linemarker, _cpp_parse_assertion): New. (_cpp_handle_directive, do_pragma_default): Delete. * cpphash.h (struct predicate): Now struct answer. (enum spell_type, struct token_spelling, struct directive, directive_handler): New. Update prototypes. Remove unused macros. * cpplib.h: Update prototypes. Remove unused macros, structure definitions, and fields. * cpperror.c (print_containing_files, v_message): Adjust. * cppexp.c (parse_assertion, lex, parse_escape, _cpp_parse_expr): Adjust. * cppfiles.c (open_include_file, _cpp_execute_include, _cpp_compare_file_date, cpp_read_file, read_include_file): Adjust. * cppinit.c (dump_special_to_buffer): Delete. (append_include_chain, merge_include_chains, cpp_reader_init, cpp_cleanup, initialize_builtins, builtin_array, cpp_start_read, cpp_finish, handle_option, print_help): Adjust. * cppmain.c (main): Adjust. testsuite: 2000-07-03 Zack Weinberg <zack@wolery.cumb.org> * testsuite/gcc.dg/cpp/19951025-1.c: Adjust regexps. * testsuite/gcc.dg/cpp/19990703-1.c: Likewise. * testsuite/gcc.dg/cpp/20000625-1.c: Likewise. * testsuite/gcc.dg/cpp/20000625-2.c: Likewise. * testsuite/gcc.dg/cpp/macro1.c, testsuite/gcc.dg/cpp/paste1.c, testsuite/gcc.dg/cpp/paste2.c, testsuite/gcc.dg/cpp/paste3.c, testsuite/gcc.dg/cpp/paste4.c, testsuite/gcc.dg/cpp/strify1.c, testsuite/gcc.dg/cpp/strify2.c: New tests. From-SVN: r34859
2000-07-04 03:58:21 +02:00
result.unsignedp = false;
result.overflow = false;
New macro expander. 2000-10-28 Neil Booth <neilb@earthling.net> New macro expander. * cpplib.c (struct answer): New. (struct if_stack): Use cpp_lexer_pos rather than line and col. Rename cmacro mi_cmacro. (struct directive, KANDR, STDC89, EXTENSION, COND, IF_COND, INCL, IN_I): New directive and flags. (skip_rest_of_line, check_eol, run_directive, glue_header_name, parse_answer, parse_assertion, find_answer): New functions. (parse_ifdef, detect_if_not_defined, validate_else): Remove. (lex_macro_node): New function to replace parse_ifdef and get_define_node. (_cpp_handle_directive): New function, combines _cpp_check_directive and _cpp_check_linemarker. (do_define, do_undef, parse_include, do_include, do_import, do_include_next, read_line_number, do_line, do_ident, do_pragma, do_pragma_once, do_pragma_poison, do_pragma_dependency): Update for new token getting interface. (do_ifdef, do_ifndef, do_if, do_else, do_endif, push_conditional) : Update for new multiple-include optimisation technique. (do_elif): Don't forget to invalidate controlling macros. (unwind_if_stack, cpp_defined, cpp_push_buffer, cpp_pop_buffer): Update. (parse_assertion, parse_answer, find_answer, _cpp_test_assertion): Functions to handle assertions with the new token interface. (do_assert, do_unassert): Use them. (cpp_define, _cpp_define_builtin, cpp_undef, cpp_assert, cpp_unassert): Use run_directive. (_cpp_init_stacks): Register directive names. Don't register special nodes. * cpperror.c (print_containing_files, _cpp_begin_message): Update to new position recording regime. (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line): Update for _cpp_begin_message changes. (cpp_type2name): Move to cpplex.c. * cppexp.c (parse_charconst): spec_nodes is no longer a pointer. (parse_defined): Update to handle new multiple include optimisation method. Remove poisoned identifier warning. (parse_assertion, TYPE_NAME): Delete. (lex): Update for multiple include optimisation, removal of CPP_DEFINED, to use _cpp_test_assertion for assertions and cpp_token_as_text. (_cpp_parse_expr): Update for MI optimisation, and to use op_as_text. (op_as_text): New function, to wrap cpp_token_as_text. * cppfiles.c (stack_include_file, _cpp_pop_file_buffer): Update for MI optimisation. (_cpp_execute_include): Take a token rather than 3 arguments. Fix segfault on diagnostic. (_cpp_compare_file_date): Take a token rather than 3 args. (cpp_read_file): Work correctly for zero-length files. * cpphash.c (_cpp_init_macros, _cpp_cleanup_macros): Rename _cpp_init_hashtable and _cpp_cleanup_hashtable. (cpp_lookup): Place identifiers at front of identifier pool for _cpp_lookup_with_hash. (_cpp_lookup_with_hash): Require identifiers to be at the front of the identifier pool. Commit the memory if not already in the hash table. * cppinit.c (cpp_reader_init): Move cpp_init_completed test to top. Initialise various members of cpp_reader, memory pools, and the special nodes. (cpp_printer_init): Delete. (cpp_cleanup): Update. (struct builtin, builtin_array, initialize_builtins): Update for new hashnode definition and builtin handling. (cpp_start_read, cpp_finish): Don't take or initialise a printer. Update. * cpplib.h (cpp_printer, cpp_toklist, CPP_DEFINED, BOL, PASTED, VAR_ARGS, BEG_OF_FILE, IN_DIRECTIVE, KNOWN_DIRECTIVE, T_VOID, T_SPECLINE, T_DATE, T_FILE, T_BASE_FILE, T_INCLUDE_LEVEL, T_TIME, T_STDC, T_OPERATOR, T_POISON, T_MACRO, T_ASSERTION): Delete. (struct cpp_pool, struct cpp_macro, struct cpp_lexer_pos, struct cpp_lookahead, CPP_DHASH, enum mi_state, enum mi_ind, NO_EXPAND, VARARGS_FIRST, struct cpp_token_with_pos, struct toklist, struct cpp_context, struct specnodes, TOKEN_LOOKAHEAD, TOKEN_BUFFSIZE, NODE_OPERATOR, NODE_POISONED, NODE_BUILTIN, NODE_DIAGNOSTIC, NT_VOID, NT_MACRO, NT_ASSERTION, enum builtin_type, cpp_can_paste): New. (struct cpp_token): Delete line and col members. (struct cpp_buffer): New member output_lineno. (struct lexer_state): Delete indented, in_lex_line, seen_dot. Add va_args_ok, poisoned_ok, prevent_expansion, parsing_args. (struct cpp_reader): New members lexer_pos, macro_pos, directive_pos, ident_pool, temp_string_pool, macro_pool, argument_pool, string_pool, base_context, context, directive, mi_state, mi_if_not_defined, mi_lexed, mi_cmacro, mi_ind_cmacro, la_read, la_write, la_unused, mlstring_pos, macro_buffer, macro_buffer_len. Delete members mls_line, mls_column, token_list, potential_control_macro, temp_tokens, temp_cap, temp_alloced, temp_used, first_directive_token, context_cap, cur_context, no_expand_level, paste_level, contexts, args, save_parameter_spellings, need_newline, . Change type of date, time and spec_nodes members. Change prototypes for include and ident callbacks. (struct cpp_hashnode): Change type of name. Remove union members expansion and code. Add members macro, operator and builtin. (cpp_token_len, cpp_token_as_text, cpp_spell_token, cpp_start_read, cpp_finish, cpp_avoid_paste, cpp_get_token, cpp_get_line, cpp_get_output_line, cpp_macro_definition, cpp_start_lookahead, cpp_stop_lookahead): New prototypes. (cpp_printer_init, cpp_dump_definition): Delete prototypes. (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move from cpphash.h. * cpphash.h (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move to cpplib.h. (enum spell_type, struct token_spelling, _cpp_token_spellings, TOKEN_SPELL, TOKEN_NAME, struct answer, FREE_ANSWER, KANDR, STDC89, EXTENSION, COND, EXPAND, INCL, COMMENTS, IN_I, struct directive, directive_handler, struct spec_nodes, _cpp_digraph_spellings, _cpp_free_temp_tokens, _cpp_init_input_buffer, _cpp_grow_token_buffer, _cpp_init_toklist, _cpp_clear_toklist, _cpp_expand_token_space, _cpp_expand_name_space, _cpp_equiv_tokens, _cpp_equiv_toklists, _cpp_process_directive, _cpp_run_directive, _cpp_get_line, _cpp_get_raw_token, _cpp_glue_header_name, _cpp_can_paste, _cpp_check_directive, _cpp_check_linemarker, _cpp_parse_assertion, _cpp_find_answer): Delete. (VALID_SIGN, ALIGN, POOL_FRONT, POOL_LIMIT, POOL_BASE, POOL_SIZE, POOL_USED, POOL_COMMIT, struct cpp_chunk, _cpp_lex_token, _cpp_init_pool, _cpp_free_pool, _cpp_pool_reserve, _cpp_pool_alloc, _cpp_next_chunk, _cpp_lock_pool, _cpp_unlock_pool, _cpp_test_assertion, _cpp_handle_directive, DSC): New. (struct include_file): New member defined. (DO_NOT_REREAD, _cpp_begin_message, _cpp_execute_include, _cpp_compare_file_date): Update. (_cpp_pop_context, _cpp_get_token, _cpp_free_lookaheads, _cpp_push_token): New. (_cpp_init_macros, _cpp_cleanup_macros): Rename to _cpp_init_hashtable, _cpp_cleanup_hashtable. * Makefile.in: Remove cppoutput.c. * cppoutput.c: Delete * fixheader.c (read_scan_file): Update for new cpp_get_token prototype. (recognized_function): New argument LINE. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new cpp_get_token prototype. * scan.h (recognized_function): Update prototype. * po/POTFILES.in: Remove cppoutput.c. From-SVN: r37098
2000-10-28 19:59:06 +02:00
switch (token->type)
cpplib.h (CPP_ASSERTION, [...]): New token types. * cpplib.h (CPP_ASSERTION, CPP_STRINGIZE, CPP_TOKPASTE): New token types. (struct cpp_reader): Add parsing_if_directive and parsing_define_directive flags. (struct cpp_options): Remove output_conditionals flag. (check_macro_name): Delete prototype. * cpphash.h (struct macrodef): Delete. (struct reflist): Separate from struct definition. (struct definition): Remove unused fields. Add column number. (create_definition): Returns a DEFINITION *. Takes a cpp_reader * and an int. * cpphash.c (SKIP_WHITE_SPACE): Delete. (PEEKC): Copy defn from cpplib.c. (rest_extension, REST_EXTENSION_LENGTH): Delete. (struct arg): New. (struct arglist): Simplify. (collect_expansion): Rewrite. Get tokens by calling cpp_get_token. Add more error checking. (collect_formal_parameters): New function, broken out of create_definition and reworked to use get_directive_token. (create_definition): All real work is now in collect_expansion and collect_formal_parameters. do_define handles finding the macro name. Return a DEFINITION, not a MACRODEF. (macroexpand): Replace bcopy with memcpy throughout. Replace character-at-a-time copy loop with memcpy and pointer increments. (compare-defs): d1->argnames / d2->argnames might be null. * cpplib.c (copy_rest_of_line): Delete function. (skip_rest_of_line): Do all the work ourselves. (skip_string): New function. (parse_string): Use skip_string. (get_macro_name): New function. (check_macro_name): Delete. (copy_comment): Use CPP_RESERVE and CPP_PUTC_Q. (cpp_skip_hspace): Use CPP_BUMP_LINE. (handle_directive): ICE if we're called on a macro buffer. (do_define): Determine macro name and type (funlike/objlike) here. Expunge all uses of MACRODEF. (cpp_push_buffer): Set line_base to NULL. (do_undef, read_line_number): Don't worry about getting a POP token. (eval_if_expression): Set/reset parsing_if_directive around cpp_parse_expr. Don't clear only_seen_white. (skip_if_group): Remove output_conditionals logic. Use skip_rest_of_line. (cpp_get_token): Return ASSERTION, STRINGIZE, and TOKPASTE tokens under appropriate conditions. (cpp_unassert): Call do_unassert not do_assert. Oops. * cppexp.c (parse_defined): New function, break out of cpp_lex. (cpp_lex): We now get CPP_ASSERTION tokens and can check them ourselves, with cpp_defined. * cppinit.c (cpp_handle_option, print_help): Delete -ifoutput. * gcc.dg/20000209-2.c: Turn off -pedantic-errors. * gcc.dg/strpaste-2.c: New. From-SVN: r32274
2000-03-01 01:57:09 +01:00
{
1995-03-16 22:59:07 +01:00
case CPP_NUMBER:
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
temp = cpp_classify_number (pfile, token, NULL, virtual_location);
Implement C++11 user-defined literals. libcpp/ * expr.c: (cpp_interpret_float_suffix, cpp_interpret_int_suffix, cpp_userdef_string_remove_type, cpp_userdef_string_add_type, cpp_userdef_char_remove_type, cpp_userdef_char_add_type, cpp_userdef_string_p, cpp_userdef_char_p, cpp_get_userdef_suffix): New. (cpp_classify_number): Classify unrecognized tokens as user-defined literals. * include/cpplib.h: Add new tokens for user-defined literals. * init.c: Add new preprocessor flag (cxx11). * lex.c: (lex_string, lex_raw_string): Handle user-defined literals including concatenation and promotion with suffixes. c-family/ * c-common.c (build_userdef_literal): New. * c-common.def: New tree code. * c-common.h (tree_userdef_literal): New tree struct and accessors. * c-lex.c (interpret_float): Add suffix parm. (c_lex_with_flags): Build literal tokens. cp/ * cp-objcp-common.c: (cp_tree_size) Return size of USERDEF_LITERAL tree. * cp-tree.h: (UDLIT_OP_*, UDLIT_OPER_P): Literal operator name tools. New tree code for user-defined literals. * cxx-pretty-print.h: (pp_cxx_userdef_literal) New. * cxx-pretty-print.c: (pp_cxx_userdef_literal) New. (pp_cxx_primary_expression, pp_cxx_expression): Use it. * decl.c: (cp_tree_node_structure): Return new tree code. (duplicate_decls): Check for raw vs. template operator conflicts. (grokfndecl, grokdeclarator): New checks for literal operators. * error.c: (dump_expr): Warn about user-defined literals in C++98 mode. (dump_function_name): Pretty printing. * mangle.c: (write_literal_operator_name): New. (write_unqualified_id, write_unqualified_name): Use it. * parser.c: (cp_parser_operator): Handle operator"". (cp_parser_userdef_char_literal, cp_parser_userdef_numeric_literal, cp_parser_userdef_string_literal): New. (cp_parser_primary_expression): Handle new user-defined literal tokens with new functions. * semantics.c: (potential_constant_expression_1): Add user-defined literals. * typeck.c (check_raw_literal_operator, check_literal_operator_args): New. From-SVN: r180536
2011-10-26 21:30:59 +02:00
if (temp & CPP_N_USERDEF)
cpp_error (pfile, CPP_DL_ERROR,
"user-defined literal in preprocessor expression");
switch (temp & CPP_N_CATEGORY)
{
case CPP_N_FLOATING:
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_ERROR, virtual_location, 0,
"floating constant in preprocessor expression");
break;
case CPP_N_INTEGER:
if (!(temp & CPP_N_IMAGINARY))
return cpp_interpret_integer (pfile, token, temp);
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_ERROR, virtual_location, 0,
"imaginary number in preprocessor expression");
break;
case CPP_N_INVALID:
/* Error already issued. */
break;
}
result.high = result.low = 0;
break;
case CPP_WCHAR:
case CPP_CHAR:
cpp-id-data.h (UC): Was U, conflicts with U... libcpp/ChangeLog: 2008-04-14 Kris Van Hees <kris.van.hees@oracle.com> * include/cpp-id-data.h (UC): Was U, conflicts with U... literal. * include/cpplib.h (CHAR16, CHAR32, STRING16, STRING32): New tokens. (struct cpp_options): Added uliterals. (cpp_interpret_string): Update prototype. (cpp_interpret_string_notranslate): Idem. * charset.c (init_iconv_desc): New width member in cset_converter. (cpp_init_iconv): Add support for char{16,32}_cset_desc. (convert_ucn): Idem. (emit_numeric_escape): Idem. (convert_hex): Idem. (convert_oct): Idem. (convert_escape): Idem. (converter_for_type): New function. (cpp_interpret_string): Use converter_for_type, support u and U prefix. (cpp_interpret_string_notranslate): Match changed prototype. (wide_str_to_charconst): Use converter_for_type. (cpp_interpret_charconst): Add support for CPP_CHAR{16,32}. * directives.c (linemarker_dir): Macro U changed to UC. (parse_include): Idem. (register_pragma_1): Idem. (restore_registered_pragmas): Idem. (get__Pragma_string): Support CPP_STRING{16,32}. * expr.c (eval_token): Support CPP_CHAR{16,32}. * init.c (struct lang_flags): Added uliterals. (lang_defaults): Idem. * internal.h (struct cset_converter) <width>: New field. (struct cpp_reader) <char16_cset_desc>: Idem. (struct cpp_reader) <char32_cset_desc>: Idem. * lex.c (digraph_spellings): Macro U changed to UC. (OP, TK): Idem. (lex_string): Add support for u'...', U'...', u... and U.... (_cpp_lex_direct): Idem. * macro.c (_cpp_builtin_macro_text): Macro U changed to UC. (stringify_arg): Support CPP_CHAR{16,32} and CPP_STRING{16,32}. gcc/ChangeLog: 2008-04-14 Kris Van Hees <kris.van.hees@oracle.com> * c-common.c (CHAR16_TYPE, CHAR32_TYPE): New macros. (fname_as_string): Match updated cpp_interpret_string prototype. (fix_string_type): Support char16_t* and char32_t*. (c_common_nodes_and_builtins): Add char16_t and char32_t (and derivative) nodes. Register as builtin if C++0x. (c_parse_error): Support CPP_CHAR{16,32}. * c-common.h (RID_CHAR16, RID_CHAR32): New elements. (enum c_tree_index) <CTI_CHAR16_TYPE, CTI_SIGNED_CHAR16_TYPE, CTI_UNSIGNED_CHAR16_TYPE, CTI_CHAR32_TYPE, CTI_SIGNED_CHAR32_TYPE, CTI_UNSIGNED_CHAR32_TYPE, CTI_CHAR16_ARRAY_TYPE, CTI_CHAR32_ARRAY_TYPE>: New elements. (char16_type_node, signed_char16_type_node, unsigned_char16_type_node, char32_type_node, signed_char32_type_node, char16_array_type_node, char32_array_type_node): New defines. * c-lex.c (cb_ident): Match updated cpp_interpret_string prototype. (c_lex_with_flags): Support CPP_CHAR{16,32} and CPP_STRING{16,32}. (lex_string): Support CPP_STRING{16,32}, match updated cpp_interpret_string and cpp_interpret_string_notranslate prototypes. (lex_charconst): Support CPP_CHAR{16,32}. * c-parser.c (c_parser_postfix_expression): Support CPP_CHAR{16,32} and CPP_STRING{16,32}. gcc/cp/ChangeLog: 2008-04-14 Kris Van Hees <kris.van.hees@oracle.com> * cvt.c (type_promotes_to): Support char16_t and char32_t. * decl.c (grokdeclarator): Disallow signed/unsigned/short/long on char16_t and char32_t. * lex.c (reswords): Add char16_t and char32_t (for c++0x). * mangle.c (write_builtin_type): Mangle char16_t/char32_t as vendor extended builtin type u8char32_t. * parser.c (cp_lexer_next_token_is_decl_specifier_keyword): Support RID_CHAR{16,32}. (cp_lexer_print_token): Support CPP_STRING{16,32}. (cp_parser_is_string_literal): Idem. (cp_parser_string_literal): Idem. (cp_parser_primary_expression): Support CPP_CHAR{16,32} and CPP_STRING{16,32}. (cp_parser_simple_type_specifier): Support RID_CHAR{16,32}. * tree.c (char_type_p): Support char16_t and char32_t as char types. * typeck.c (string_conv_p): Support char16_t and char32_t. gcc/testsuite/ChangeLog: 2008-04-14 Kris Van Hees <kris.van.hees@oracle.com> Tests for char16_t and char32_t support. * g++.dg/ext/utf-cvt.C: New * g++.dg/ext/utf-cxx0x.C: New * g++.dg/ext/utf-cxx98.C: New * g++.dg/ext/utf-dflt.C: New * g++.dg/ext/utf-gnuxx0x.C: New * g++.dg/ext/utf-gnuxx98.C: New * g++.dg/ext/utf-mangle.C: New * g++.dg/ext/utf-typedef-cxx0x.C: New * g++.dg/ext/utf-typedef- * g++.dg/ext/utf-typespec.C: New * g++.dg/ext/utf16-1.C: New * g++.dg/ext/utf16-2.C: New * g++.dg/ext/utf16-3.C: New * g++.dg/ext/utf16-4.C: New * g++.dg/ext/utf32-1.C: New * g++.dg/ext/utf32-2.C: New * g++.dg/ext/utf32-3.C: New * g++.dg/ext/utf32-4.C: New * gcc.dg/utf-cvt.c: New * gcc.dg/utf-dflt.c: New * gcc.dg/utf16-1.c: New * gcc.dg/utf16-2.c: New * gcc.dg/utf16-3.c: New * gcc.dg/utf16-4.c: New * gcc.dg/utf32-1.c: New * gcc.dg/utf32-2.c: New * gcc.dg/utf32-3.c: New * gcc.dg/utf32-4.c: New libiberty/ChangeLog: 2008-04-14 Kris Van Hees <kris.van.hees@oracle.com> * testsuite/demangle-expected: Added tests for char16_t and char32_t. From-SVN: r134438
2008-04-18 15:58:08 +02:00
case CPP_CHAR16:
case CPP_CHAR32:
Implement N4197 - Adding u8 character literals libcpp: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * include/cpplib.h (UTF8CHAR, UTF8CHAR_USERDEF): New cpp tokens; (struct cpp_options): Add utf8_char_literals. * init.c (struct lang_flags): Add utf8_char_literals; (struct lang_flags lang_defaults): Add column for utf8_char_literals. * macro.c (stringify_arg()): Treat CPP_UTF8CHAR token; * expr.c (cpp_userdef_char_remove_type(), cpp_userdef_char_add_type()): Treat CPP_UTF8CHAR_USERDEF, CPP_UTF8CHAR tokens; (cpp_userdef_char_p()): Treat CPP_UTF8CHAR_USERDEF token; (eval_token(), _cpp_parse_expr()): Treat CPP_UTF8CHAR token. * lex.c (lex_string(), _cpp_lex_direct()): Include CPP_UTF8CHAR tokens. * charset.c (converter_for_type(), cpp_interpret_charconst()): Treat CPP_UTF8CHAR token. gcc/c-family: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * c-family/c-ada-spec.c (print_ada_macros()): Treat CPP_UTF8CHAR like CPP_CHAR. * c-family/c-common.c (c_parse_error()): print CPP_UTF8CHAR and CPP_UTF8CHAR_USERDEF tokens. * c-family/c-lex.c (c_lex_with_flags()): Treat CPP_UTF8CHAR_USERDEF and CPP_UTF8CHAR tokens; (lex_charconst()): Treat CPP_UTF8CHAR token. gcc/cp: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * parser.c (cp_parser_primary_expression()): Treat CPP_UTF8CHAR and CPP_UTF8CHAR_USERDEF tokens; (cp_parser_parenthesized_expression_list()): Treat CPP_UTF8CHAR token. gcc/testsuite: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * g++.dg/cpp1z/utf8.C: New. * g++.dg/cpp1z/utf8-neg.C: New. * g++.dg/cpp1z/udlit-utf8char.C: New. From-SVN: r225185
2015-06-30 14:58:48 +02:00
case CPP_UTF8CHAR:
{
cppchar_t cc = cpp_interpret_charconst (pfile, token,
&temp, &unsignedp);
result.high = 0;
result.low = cc;
/* Sign-extend the result if necessary. */
if (!unsignedp && (cppchar_signed_t) cc < 0)
{
if (PART_PRECISION > BITS_PER_CPPCHAR_T)
result.low |= ~(~(cpp_num_part) 0
>> (PART_PRECISION - BITS_PER_CPPCHAR_T));
result.high = ~(cpp_num_part) 0;
result = num_trim (result, CPP_OPTION (pfile, precision));
}
}
break;
cpplib.h (CPP_ASSERTION, [...]): New token types. * cpplib.h (CPP_ASSERTION, CPP_STRINGIZE, CPP_TOKPASTE): New token types. (struct cpp_reader): Add parsing_if_directive and parsing_define_directive flags. (struct cpp_options): Remove output_conditionals flag. (check_macro_name): Delete prototype. * cpphash.h (struct macrodef): Delete. (struct reflist): Separate from struct definition. (struct definition): Remove unused fields. Add column number. (create_definition): Returns a DEFINITION *. Takes a cpp_reader * and an int. * cpphash.c (SKIP_WHITE_SPACE): Delete. (PEEKC): Copy defn from cpplib.c. (rest_extension, REST_EXTENSION_LENGTH): Delete. (struct arg): New. (struct arglist): Simplify. (collect_expansion): Rewrite. Get tokens by calling cpp_get_token. Add more error checking. (collect_formal_parameters): New function, broken out of create_definition and reworked to use get_directive_token. (create_definition): All real work is now in collect_expansion and collect_formal_parameters. do_define handles finding the macro name. Return a DEFINITION, not a MACRODEF. (macroexpand): Replace bcopy with memcpy throughout. Replace character-at-a-time copy loop with memcpy and pointer increments. (compare-defs): d1->argnames / d2->argnames might be null. * cpplib.c (copy_rest_of_line): Delete function. (skip_rest_of_line): Do all the work ourselves. (skip_string): New function. (parse_string): Use skip_string. (get_macro_name): New function. (check_macro_name): Delete. (copy_comment): Use CPP_RESERVE and CPP_PUTC_Q. (cpp_skip_hspace): Use CPP_BUMP_LINE. (handle_directive): ICE if we're called on a macro buffer. (do_define): Determine macro name and type (funlike/objlike) here. Expunge all uses of MACRODEF. (cpp_push_buffer): Set line_base to NULL. (do_undef, read_line_number): Don't worry about getting a POP token. (eval_if_expression): Set/reset parsing_if_directive around cpp_parse_expr. Don't clear only_seen_white. (skip_if_group): Remove output_conditionals logic. Use skip_rest_of_line. (cpp_get_token): Return ASSERTION, STRINGIZE, and TOKPASTE tokens under appropriate conditions. (cpp_unassert): Call do_unassert not do_assert. Oops. * cppexp.c (parse_defined): New function, break out of cpp_lex. (cpp_lex): We now get CPP_ASSERTION tokens and can check them ourselves, with cpp_defined. * cppinit.c (cpp_handle_option, print_help): Delete -ifoutput. * gcc.dg/20000209-2.c: Turn off -pedantic-errors. * gcc.dg/strpaste-2.c: New. From-SVN: r32274
2000-03-01 01:57:09 +01:00
case CPP_NAME:
if (token->val.node.node == pfile->spec_nodes.n_defined)
return parse_defined (pfile);
Implement SD-6: SG10 Feature Test Recommendations 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * internal.h (lexer_state, spec_nodes): Add in__has_include__. * directives.c: Support __has_include__ builtin. * expr.c (parse_has_include): New function to parse __has_include__ builtin; (eval_token()): Use it. * files.c (_cpp_has_header()): New funtion to look for header; (open_file_failed()): Not an error to not find a header file for __has_include__. * identifiers.c (_cpp_init_hashtable()): Add entry for __has_include__. * pch.c (cpp_read_state): Lookup __has_include__. * traditional.c (enum ls, _cpp_scan_out_logical_line()): Walk through __has_include__ statements. 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * c-cppbuiltin.c (c_cpp_builtins()): Define language feature macros and the __has_header macro. 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * include/bits/basic_string.h: Add __cpp_lib feature test macro. * include/bits/stl_algobase.h: Ditto. * include/bits/stl_function.h: Ditto. * include/bits/unique_ptr.h: Ditto. * include/std/chrono: Ditto. * include/std/complex: Ditto. * include/std/iomanip: Ditto. * include/std/shared_mutex: Ditto. * include/std/tuple: Ditto. * include/std/type_traits: Ditto. * include/std/utility: Ditto. * testsuite/experimental/feat-cxx14.cc: New. * testsuite/experimental/feat-lib-fund.cc: New. * testsuite/20_util/declval/requirements/1_neg.cc: Adjust. * testsuite/20_util/duration/literals/range.cc: Adjust. * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Adjust. * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Adjust. * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Adjust. * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust. * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust. * testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust. * testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc: Adjust. 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * g++.dg/cpp1y/feat-cxx11-neg.C: New. * g++.dg/cpp1y/feat-cxx11.C: New. * g++.dg/cpp1y/feat-cxx14.C: New. * g++.dg/cpp1y/feat-cxx98.C: New. * g++.dg/cpp1y/feat-cxx98-neg.C: New. * g++.dg/cpp1y/phoobhar.h: New. * g++.dg/cpp1y/testinc/phoobhar.h: New. From-SVN: r215752
2014-10-01 13:49:23 +02:00
else if (token->val.node.node == pfile->spec_nodes.n__has_include__)
return parse_has_include (pfile, IT_INCLUDE);
else if (token->val.node.node == pfile->spec_nodes.n__has_include_next__)
return parse_has_include (pfile, IT_INCLUDE_NEXT);
else if (CPP_OPTION (pfile, cplusplus)
&& (token->val.node.node == pfile->spec_nodes.n_true
|| token->val.node.node == pfile->spec_nodes.n_false))
{
result.high = 0;
result.low = (token->val.node.node == pfile->spec_nodes.n_true);
}
else
{
result.high = 0;
result.low = 0;
if (CPP_OPTION (pfile, warn_undef) && !pfile->state.skip_eval)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_warning_with_line (pfile, CPP_W_UNDEF, virtual_location, 0,
"\"%s\" is not defined",
NODE_NAME (token->val.node.node));
1995-03-16 22:59:07 +01:00
}
break;
1995-03-16 22:59:07 +01:00
re PR preprocessor/22168 (#if #A == #B should have a diagnostic in ISO C mode) libcpp PR preprocessor/22168: * include/cpplib.h (struct cpp_options) <objc>: Update documentation. * expr.c (eval_token): Warn for use of assertions. * directives.c (directive_diagnostics): Warn about extensions. (DEPRECATED): New define. (DIRECTIVE_TABLE): Use it. gcc PR preprocessor/22168: * doc/cpp.texi (Top): Update menu. (Alternatives to Wrapper #ifndef): New node. (Other Directives): Document deprecation. (Obsolete Features): Remove menu. (Assertions): Merge node into Obsolete Features. (Obsolete once-only headers): Move earlier; rename to Alternatives to Wrapper #ifndef. * doc/cppopts.texi: Update. * c.opt (Wdeprecated): Enable for C and ObjC. * doc/invoke.texi (Option Summary): Move -Wno-deprecated. (C++ Dialect Options): Move -Wno-deprecated from here to... (Warning Options): ... here. gcc/testsuite PR preprocessor/22168: * gcc.dg/pch/import-2.hs: Add -Wno-deprecated. * gcc.dg/pch/import-1.hs: Add -Wno-deprecated. * gcc.dg/pch/import-2.c: Add -Wno-deprecated. * gcc.dg/pch/import-1.c: Add -Wno-deprecated. * gcc.dg/cpp/import2.c: Add -Wno-deprecated. * gcc.dg/cpp/import1.c: Add -Wno-deprecated. * gcc.dg/cpp/trad/assert3.c: Add -Wno-deprecated. * gcc.dg/cpp/trad/assert2.c: Add -Wno-deprecated. * gcc.dg/cpp/trad/assert1.c: Add -Wno-deprecated. * gcc.dg/cpp/ident.c: Add -Wno-deprecated. * gcc.dg/cpp/ident-1.c: Add -Wno-deprecated. * gcc.dg/cpp/extratokens.c: Add -Wno-deprecated. * gcc.dg/cpp/assert3.c: Add -Wno-deprecated. * gcc.dg/cpp/assert2.c: Add -Wno-deprecated. * gcc.dg/cpp/assert1.c: Add -Wno-deprecated. * gcc.dg/cpp/assert4.c: Compile with -ansi and not -pedantic. Add -Wno-deprecated. * gcc.dg/cpp/pr22168.c: New file. * gcc.dg/cpp/pr22168-2.c: New file. From-SVN: r135264
2008-05-13 16:50:27 +02:00
case CPP_HASH:
if (!pfile->state.skipping)
{
/* A pedantic warning takes precedence over a deprecated
warning here. */
if (CPP_PEDANTIC (pfile))
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_PEDWARN,
virtual_location, 0,
"assertions are a GCC extension");
optc-gen.awk: Generate global_options initializer instead of individual variables. gcc: * optc-gen.awk: Generate global_options initializer instead of individual variables. Add x_ prefix to names of structure members. * opth-gen.awk: Generate gcc_options structure. Add x_ prefix to names of structure members. * doc/tm.texi.in (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Document. * doc/tm.texi: Regenerate. * alias.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * builtins.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER. * c-parser.c (disable_extension_diagnostics, restore_extension_diagnostics): Update names of cpp_options members. * combine.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * common.opt (fcompare-debug-second): Don't use Var. * config/alpha/alpha.h (target_flags): Remove. * config/arm/arm.h (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Define. * config/bfin/bfin.h (target_flags): Remove. * config/cris/cris.h (target_flags): Remove. * config/i386/i386-c.c (ix86_pragma_target_parse): Update names of cl_target_option members. * config/i386/i386.c (ix86_force_align_arg_pointer): Remove. (ix86_function_specific_print, ix86_valid_target_attribute_tree, ix86_can_inline_p): Update names of cl_target_option members. * config/i386/i386.h (ix86_isa_flags): Remove. * config/lm32/lm32.h (target_flags): Remove. * config/mcore/mcore.h (mcore_stack_increment): Remove. * config/mcore/mcore.md (addsi3): Remove extern declaration of flag_omit_frame_pointer. * config/mep/mep.h (target_flags): Remove. * config/mips/mips.h (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Define. * config/mmix/mmix.h (target_flags): Remove. * config/rs6000/rs6000.h (rs6000_xilinx_fpu, flag_pic, flag_expensive_optimizations): Remove. * config/s390/s390.h (flag_pic): Remove. * config/score/score-conv.h (target_flags): Remove. * config/sh/sh.h (sh_fixed_range_str): Remove. * config/spu/spu.h (target_flags, spu_fixed_range_string): Remove. * dbxout.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER * df-scan.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * diagnostic.c (diagnostic_initialize): Update names of diagnostic_context members. * diagnostic.h (diagnostic_context): Rename inhibit_warnings and warn_system_headers. (diagnostic_report_warnings_p): Update for new names. * dwarf2out.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER * emit-rtl.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER and HARD_FRAME_POINTER_IS_ARG_POINTER. * flags.h (flag_compare_debug): Declare. * ira.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * opts.c (flag_compare_debug): Define. (common_handle_option): Update names of diagnostic_context members. Handle -fcompare-debug-second. (fast_math_flags_struct_set_p): Update names of cl_optimization members. * reginfo.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * regrename.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * reload.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * reload1.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * resource.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER. * rtl.h (HARD_FRAME_POINTER_IS_FRAME_POINTER, HARD_FRAME_POINTER_IS_ARG_POINTER): Define and use. * sel-sched.c: Use HARD_FRAME_POINTER_IS_FRAME_POINTER * stmt.c: Use HARD_FRAME_POINTER_IS_ARG_POINTER. gcc/c-family: * c-common.c (c_cpp_error): Update names of diagnostic_context members. * c-cppbuiltin.c (c_cpp_builtins_optimize_pragma): Update names of cl_optimization members. * c-opts.c (warning_as_error_callback, c_common_handle_option, sanitize_cpp_opts, finish_options): Update names of cpp_options members. gcc/fortran: * cpp.c (cpp_define_builtins): Update names of gfc_option_t members. (gfc_cpp_post_options): Update names of cpp_options members. (cb_cpp_error): Update names of diagnostic_context members. * f95-lang.c (gfc_init_builtin_functions): Update names of gfc_option_t members. * gfortran.h (gfc_option_t): Rename warn_conversion and flag_openmp. * intrinsic.c (gfc_convert_type_warn): Update names of gfc_option_t members. * options.c (gfc_init_options, gfc_post_options, set_Wall, gfc_handle_option): Update names of gfc_option_t members. * parse.c (next_free, next_fixed): Update names of gfc_option_t members. * scanner.c (pedantic): Remove extern declaration. (skip_free_comments, skip_fixed_comments, include_line): Update names of gfc_option_t members. * trans-decl.c (gfc_generate_function_code): Update names of gfc_option_t members. gcc/java: * java-tree.h (flag_filelist_file, flag_assert, flag_jni, flag_force_classes_archive_check, flag_redundant, flag_newer, flag_use_divide_subroutine, flag_use_atomic_builtins, flag_use_boehm_gc, flag_hash_synchronization, flag_check_references, flag_optimize_sci, flag_indirect_classes, flag_indirect_dispatch, flag_store_check, flag_reduced_reflection): Remove. * jcf-dump.c (flag_newer): Remove. * jcf.h (quiet_flag): Remove. * parse.h (quiet_flag): Remove. libcpp: * include/cpplib.h (cpp_options): Rename warn_deprecated, warn_traditional, warn_long_long and pedantic. * directives.c (directive_diagnostics, _cpp_handle_directive): Update names of cpp_options members. * expr.c (cpp_classify_number, eval_token): Update names of cpp_options members. * init.c (cpp_create_reader, post_options): Update names of cpp_options members. * internal.h (CPP_PEDANTIC, CPP_WTRADITIONAL): Update names of cpp_options members. * macro.c (parse_params): Update names of cpp_options members. From-SVN: r164723
2010-09-29 16:49:14 +02:00
else if (CPP_OPTION (pfile, cpp_warn_deprecated))
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_warning_with_line (pfile, CPP_W_DEPRECATED, virtual_location, 0,
"assertions are a deprecated extension");
re PR preprocessor/22168 (#if #A == #B should have a diagnostic in ISO C mode) libcpp PR preprocessor/22168: * include/cpplib.h (struct cpp_options) <objc>: Update documentation. * expr.c (eval_token): Warn for use of assertions. * directives.c (directive_diagnostics): Warn about extensions. (DEPRECATED): New define. (DIRECTIVE_TABLE): Use it. gcc PR preprocessor/22168: * doc/cpp.texi (Top): Update menu. (Alternatives to Wrapper #ifndef): New node. (Other Directives): Document deprecation. (Obsolete Features): Remove menu. (Assertions): Merge node into Obsolete Features. (Obsolete once-only headers): Move earlier; rename to Alternatives to Wrapper #ifndef. * doc/cppopts.texi: Update. * c.opt (Wdeprecated): Enable for C and ObjC. * doc/invoke.texi (Option Summary): Move -Wno-deprecated. (C++ Dialect Options): Move -Wno-deprecated from here to... (Warning Options): ... here. gcc/testsuite PR preprocessor/22168: * gcc.dg/pch/import-2.hs: Add -Wno-deprecated. * gcc.dg/pch/import-1.hs: Add -Wno-deprecated. * gcc.dg/pch/import-2.c: Add -Wno-deprecated. * gcc.dg/pch/import-1.c: Add -Wno-deprecated. * gcc.dg/cpp/import2.c: Add -Wno-deprecated. * gcc.dg/cpp/import1.c: Add -Wno-deprecated. * gcc.dg/cpp/trad/assert3.c: Add -Wno-deprecated. * gcc.dg/cpp/trad/assert2.c: Add -Wno-deprecated. * gcc.dg/cpp/trad/assert1.c: Add -Wno-deprecated. * gcc.dg/cpp/ident.c: Add -Wno-deprecated. * gcc.dg/cpp/ident-1.c: Add -Wno-deprecated. * gcc.dg/cpp/extratokens.c: Add -Wno-deprecated. * gcc.dg/cpp/assert3.c: Add -Wno-deprecated. * gcc.dg/cpp/assert2.c: Add -Wno-deprecated. * gcc.dg/cpp/assert1.c: Add -Wno-deprecated. * gcc.dg/cpp/assert4.c: Compile with -ansi and not -pedantic. Add -Wno-deprecated. * gcc.dg/cpp/pr22168.c: New file. * gcc.dg/cpp/pr22168-2.c: New file. From-SVN: r135264
2008-05-13 16:50:27 +02:00
}
_cpp_test_assertion (pfile, &temp);
result.high = 0;
result.low = temp;
re PR preprocessor/22168 (#if #A == #B should have a diagnostic in ISO C mode) libcpp PR preprocessor/22168: * include/cpplib.h (struct cpp_options) <objc>: Update documentation. * expr.c (eval_token): Warn for use of assertions. * directives.c (directive_diagnostics): Warn about extensions. (DEPRECATED): New define. (DIRECTIVE_TABLE): Use it. gcc PR preprocessor/22168: * doc/cpp.texi (Top): Update menu. (Alternatives to Wrapper #ifndef): New node. (Other Directives): Document deprecation. (Obsolete Features): Remove menu. (Assertions): Merge node into Obsolete Features. (Obsolete once-only headers): Move earlier; rename to Alternatives to Wrapper #ifndef. * doc/cppopts.texi: Update. * c.opt (Wdeprecated): Enable for C and ObjC. * doc/invoke.texi (Option Summary): Move -Wno-deprecated. (C++ Dialect Options): Move -Wno-deprecated from here to... (Warning Options): ... here. gcc/testsuite PR preprocessor/22168: * gcc.dg/pch/import-2.hs: Add -Wno-deprecated. * gcc.dg/pch/import-1.hs: Add -Wno-deprecated. * gcc.dg/pch/import-2.c: Add -Wno-deprecated. * gcc.dg/pch/import-1.c: Add -Wno-deprecated. * gcc.dg/cpp/import2.c: Add -Wno-deprecated. * gcc.dg/cpp/import1.c: Add -Wno-deprecated. * gcc.dg/cpp/trad/assert3.c: Add -Wno-deprecated. * gcc.dg/cpp/trad/assert2.c: Add -Wno-deprecated. * gcc.dg/cpp/trad/assert1.c: Add -Wno-deprecated. * gcc.dg/cpp/ident.c: Add -Wno-deprecated. * gcc.dg/cpp/ident-1.c: Add -Wno-deprecated. * gcc.dg/cpp/extratokens.c: Add -Wno-deprecated. * gcc.dg/cpp/assert3.c: Add -Wno-deprecated. * gcc.dg/cpp/assert2.c: Add -Wno-deprecated. * gcc.dg/cpp/assert1.c: Add -Wno-deprecated. * gcc.dg/cpp/assert4.c: Compile with -ansi and not -pedantic. Add -Wno-deprecated. * gcc.dg/cpp/pr22168.c: New file. * gcc.dg/cpp/pr22168-2.c: New file. From-SVN: r135264
2008-05-13 16:50:27 +02:00
break;
default:
abort ();
New macro expander. 2000-10-28 Neil Booth <neilb@earthling.net> New macro expander. * cpplib.c (struct answer): New. (struct if_stack): Use cpp_lexer_pos rather than line and col. Rename cmacro mi_cmacro. (struct directive, KANDR, STDC89, EXTENSION, COND, IF_COND, INCL, IN_I): New directive and flags. (skip_rest_of_line, check_eol, run_directive, glue_header_name, parse_answer, parse_assertion, find_answer): New functions. (parse_ifdef, detect_if_not_defined, validate_else): Remove. (lex_macro_node): New function to replace parse_ifdef and get_define_node. (_cpp_handle_directive): New function, combines _cpp_check_directive and _cpp_check_linemarker. (do_define, do_undef, parse_include, do_include, do_import, do_include_next, read_line_number, do_line, do_ident, do_pragma, do_pragma_once, do_pragma_poison, do_pragma_dependency): Update for new token getting interface. (do_ifdef, do_ifndef, do_if, do_else, do_endif, push_conditional) : Update for new multiple-include optimisation technique. (do_elif): Don't forget to invalidate controlling macros. (unwind_if_stack, cpp_defined, cpp_push_buffer, cpp_pop_buffer): Update. (parse_assertion, parse_answer, find_answer, _cpp_test_assertion): Functions to handle assertions with the new token interface. (do_assert, do_unassert): Use them. (cpp_define, _cpp_define_builtin, cpp_undef, cpp_assert, cpp_unassert): Use run_directive. (_cpp_init_stacks): Register directive names. Don't register special nodes. * cpperror.c (print_containing_files, _cpp_begin_message): Update to new position recording regime. (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line): Update for _cpp_begin_message changes. (cpp_type2name): Move to cpplex.c. * cppexp.c (parse_charconst): spec_nodes is no longer a pointer. (parse_defined): Update to handle new multiple include optimisation method. Remove poisoned identifier warning. (parse_assertion, TYPE_NAME): Delete. (lex): Update for multiple include optimisation, removal of CPP_DEFINED, to use _cpp_test_assertion for assertions and cpp_token_as_text. (_cpp_parse_expr): Update for MI optimisation, and to use op_as_text. (op_as_text): New function, to wrap cpp_token_as_text. * cppfiles.c (stack_include_file, _cpp_pop_file_buffer): Update for MI optimisation. (_cpp_execute_include): Take a token rather than 3 arguments. Fix segfault on diagnostic. (_cpp_compare_file_date): Take a token rather than 3 args. (cpp_read_file): Work correctly for zero-length files. * cpphash.c (_cpp_init_macros, _cpp_cleanup_macros): Rename _cpp_init_hashtable and _cpp_cleanup_hashtable. (cpp_lookup): Place identifiers at front of identifier pool for _cpp_lookup_with_hash. (_cpp_lookup_with_hash): Require identifiers to be at the front of the identifier pool. Commit the memory if not already in the hash table. * cppinit.c (cpp_reader_init): Move cpp_init_completed test to top. Initialise various members of cpp_reader, memory pools, and the special nodes. (cpp_printer_init): Delete. (cpp_cleanup): Update. (struct builtin, builtin_array, initialize_builtins): Update for new hashnode definition and builtin handling. (cpp_start_read, cpp_finish): Don't take or initialise a printer. Update. * cpplib.h (cpp_printer, cpp_toklist, CPP_DEFINED, BOL, PASTED, VAR_ARGS, BEG_OF_FILE, IN_DIRECTIVE, KNOWN_DIRECTIVE, T_VOID, T_SPECLINE, T_DATE, T_FILE, T_BASE_FILE, T_INCLUDE_LEVEL, T_TIME, T_STDC, T_OPERATOR, T_POISON, T_MACRO, T_ASSERTION): Delete. (struct cpp_pool, struct cpp_macro, struct cpp_lexer_pos, struct cpp_lookahead, CPP_DHASH, enum mi_state, enum mi_ind, NO_EXPAND, VARARGS_FIRST, struct cpp_token_with_pos, struct toklist, struct cpp_context, struct specnodes, TOKEN_LOOKAHEAD, TOKEN_BUFFSIZE, NODE_OPERATOR, NODE_POISONED, NODE_BUILTIN, NODE_DIAGNOSTIC, NT_VOID, NT_MACRO, NT_ASSERTION, enum builtin_type, cpp_can_paste): New. (struct cpp_token): Delete line and col members. (struct cpp_buffer): New member output_lineno. (struct lexer_state): Delete indented, in_lex_line, seen_dot. Add va_args_ok, poisoned_ok, prevent_expansion, parsing_args. (struct cpp_reader): New members lexer_pos, macro_pos, directive_pos, ident_pool, temp_string_pool, macro_pool, argument_pool, string_pool, base_context, context, directive, mi_state, mi_if_not_defined, mi_lexed, mi_cmacro, mi_ind_cmacro, la_read, la_write, la_unused, mlstring_pos, macro_buffer, macro_buffer_len. Delete members mls_line, mls_column, token_list, potential_control_macro, temp_tokens, temp_cap, temp_alloced, temp_used, first_directive_token, context_cap, cur_context, no_expand_level, paste_level, contexts, args, save_parameter_spellings, need_newline, . Change type of date, time and spec_nodes members. Change prototypes for include and ident callbacks. (struct cpp_hashnode): Change type of name. Remove union members expansion and code. Add members macro, operator and builtin. (cpp_token_len, cpp_token_as_text, cpp_spell_token, cpp_start_read, cpp_finish, cpp_avoid_paste, cpp_get_token, cpp_get_line, cpp_get_output_line, cpp_macro_definition, cpp_start_lookahead, cpp_stop_lookahead): New prototypes. (cpp_printer_init, cpp_dump_definition): Delete prototypes. (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move from cpphash.h. * cpphash.h (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move to cpplib.h. (enum spell_type, struct token_spelling, _cpp_token_spellings, TOKEN_SPELL, TOKEN_NAME, struct answer, FREE_ANSWER, KANDR, STDC89, EXTENSION, COND, EXPAND, INCL, COMMENTS, IN_I, struct directive, directive_handler, struct spec_nodes, _cpp_digraph_spellings, _cpp_free_temp_tokens, _cpp_init_input_buffer, _cpp_grow_token_buffer, _cpp_init_toklist, _cpp_clear_toklist, _cpp_expand_token_space, _cpp_expand_name_space, _cpp_equiv_tokens, _cpp_equiv_toklists, _cpp_process_directive, _cpp_run_directive, _cpp_get_line, _cpp_get_raw_token, _cpp_glue_header_name, _cpp_can_paste, _cpp_check_directive, _cpp_check_linemarker, _cpp_parse_assertion, _cpp_find_answer): Delete. (VALID_SIGN, ALIGN, POOL_FRONT, POOL_LIMIT, POOL_BASE, POOL_SIZE, POOL_USED, POOL_COMMIT, struct cpp_chunk, _cpp_lex_token, _cpp_init_pool, _cpp_free_pool, _cpp_pool_reserve, _cpp_pool_alloc, _cpp_next_chunk, _cpp_lock_pool, _cpp_unlock_pool, _cpp_test_assertion, _cpp_handle_directive, DSC): New. (struct include_file): New member defined. (DO_NOT_REREAD, _cpp_begin_message, _cpp_execute_include, _cpp_compare_file_date): Update. (_cpp_pop_context, _cpp_get_token, _cpp_free_lookaheads, _cpp_push_token): New. (_cpp_init_macros, _cpp_cleanup_macros): Rename to _cpp_init_hashtable, _cpp_cleanup_hashtable. * Makefile.in: Remove cppoutput.c. * cppoutput.c: Delete * fixheader.c (read_scan_file): Update for new cpp_get_token prototype. (recognized_function): New argument LINE. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new cpp_get_token prototype. * scan.h (recognized_function): Update prototype. * po/POTFILES.in: Remove cppoutput.c. From-SVN: r37098
2000-10-28 19:59:06 +02:00
}
result.unsignedp = !!unsignedp;
return result;
1995-03-16 22:59:07 +01:00
}
/* Operator precedence and flags table.
After an operator is returned from the lexer, if it has priority less
than the operator on the top of the stack, we reduce the stack by one
operator and repeat the test. Since equal priorities do not reduce,
this is naturally right-associative.
We handle left-associative operators by decrementing the priority of
just-lexed operators by one, but retaining the priority of operators
already on the stack.
The remaining cases are '(' and ')'. We handle '(' by skipping the
reduction phase completely. ')' is given lower priority than
everything else, including '(', effectively forcing a reduction of the
parenthesized expression. If there is a matching '(', the routine
reduce() exits immediately. If the normal exit route sees a ')', then
there cannot have been a matching '(' and an error message is output.
The parser assumes all shifted operators require a left operand unless
the flag NO_L_OPERAND is set. These semantics are automatic; any
extra semantics need to be handled with operator-specific code. */
/* Flags. If CHECK_PROMOTION, we warn if the effective sign of an
operand changes because of integer promotions. */
#define NO_L_OPERAND (1 << 0)
#define LEFT_ASSOC (1 << 1)
#define CHECK_PROMOTION (1 << 2)
/* Operator to priority map. Must be in the same order as the first
N entries of enum cpp_ttype. */
configure.ac: Check declarations for asprintf and vasprintf. * configure.ac: Check declarations for asprintf and vasprintf. * config.in: Regenerate. * configure: Likewise. * charset.c (conversion_loop): Use XRESIZEVEC. (convert_no_conversion): Likewise. (convert_using_iconv): Likewise. (init_iconv_desc): Cast return value of alloca. (cpp_host_to_exec_charset): Use XNEWVEC. (emit_numeric_escape): Use XRESIZEVEC. (cpp_interpret_string): Use XNEWVEC. (cpp_interpret_string): Use XRESIZEVEC. (_cpp_interpret_identifier): Cast return value of alloca. (_cpp_convert_input): Use XNEWVEC and XRESIZEVEC. * directives.c (glue_header_name): Use XNEWVEC and XRESIZEVEC. (parse_include): Use XNEWVEC. (insert_pragma_entry): Rename local variable "new" to "new_entry". (save_registered_pragmas): Cast return value of xmemdup. (destringize_and_run): Same for alloca. (parse_assertion): Likewise. (do_assert): Cast allocated storage to proper type. (cpp_define): Likewise. (_cpp_define_builtin): Likewise. (cpp_undef): Likewise. (handle_assertion): Likewise. (cpp_push_buffer): Rename local variable "new" to "new_buffer". * expr.c (CPP_UPLUS): Cast value to type cpp_ttype. (CPP_UMINUS): Likewise. (struct cpp_operator): Rename from struct operator. (_cpp_expand_op_stack): Use XRESIZEVEC. * files.c (pch_open_file): Use XNEWVEC. (pch_open_file): Use XRESIZEVEC. (read_file_guts): Use XNEWVEC and XRESIZEVEC. (dir_name_of_file): Use XNEWVEC. (make_cpp_file): Use XCNEW. (make_cpp_dir): Likewise. (allocate_file_hash_entries): USE XNEWVEC. (cpp_included): Cast return value of htab_find_with_hash. (append_file_to_dir): Use XNEWVEC. (read_filename_string): Likewise. Use XRESIZEVEC too. (read_name_map): Cast return value of alloca. Use XRESIZEVEC. (remap_filename): Use XNEWVEC. (struct pchf_entry): Move definition out of struct pchf_data. (_cpp_save_file_entries): Use XCNEWVAR. (_cpp_read_file_entries): Use XNEWVAR. * identifiers.c (alloc_node): Use XOBNEW. * init.c (cpp_create_reader): Use XCNEW. (cpp_init_builtins): Cast of b->value to enum builtin_type. (read_original_directory): Cast return value of alloca. * lex.c (add_line_note): Use XRESIZEVEC. (warn_about_normalization): Use XNEWVEC. (_cpp_lex_direct): Cast node->directive_index to (enum cpp_ttype). (new_buff): Use XNEWVEC. * line-map.c (linemap_add): Use XRESIZEVEC. * macro.c (builtin_macro): Cast return value of alloca. (paste_tokens): Likewise. (expand_arg): Use XNEWVEC and XRESIZEVEC. (_cpp_save_parameter): Use XRESIZEVEC. (create_iso_definition): Cast allocated storage to proper type. (_cpp_create_definition): Likewise. (cpp_macro_definition): Use XRESIZEVEC. * makedepend.c (add_clm): Use XNEW. (add_dir): Likewise. * mkdeps.c (munge): Use XNEWVEC. (deps_init): Use XCNEW. (deps_add_target): Use XRESIZEVEC. (deps_add_default_target): Cast return value of alloca. (deps_add_dep): Use XRESIZEVEC. (deps_add_vpath): Likewise. Use XNEWVEC too. (deps_restore): Likewise. * pch.c (save_idents): Use XNEW and XNEWVEC. (cpp_save_state): Use XNEW. (count_defs): Cast return value of htab_find. (write_defs): Likewise. (cpp_write_pch_deps): Use XNEWVEC. (collect_ht_nodes): Use XRESIZEVEC. (cpp_valid_state): Use XNEWVEC. (save_macros): Use XRESIZEVEC. Cast return value of xmemdup. * symtab.c (ht_create): Use XCNEW. (ht_lookup_with_hash): Cast return value of obstack_copy0. (ht_expand): Use XCNEWVEC. * system.h (HAVE_DESIGNATED_INITIALIZERS): False if __cplusplus. (bool): Do not define if __cplusplus. From-SVN: r100295
2005-05-28 17:52:48 +02:00
static const struct cpp_operator
{
uchar prio;
uchar flags;
} optab[] =
{
/* EQ */ {0, 0}, /* Shouldn't happen. */
/* NOT */ {16, NO_L_OPERAND},
/* GREATER */ {12, LEFT_ASSOC | CHECK_PROMOTION},
/* LESS */ {12, LEFT_ASSOC | CHECK_PROMOTION},
/* PLUS */ {14, LEFT_ASSOC | CHECK_PROMOTION},
/* MINUS */ {14, LEFT_ASSOC | CHECK_PROMOTION},
/* MULT */ {15, LEFT_ASSOC | CHECK_PROMOTION},
/* DIV */ {15, LEFT_ASSOC | CHECK_PROMOTION},
/* MOD */ {15, LEFT_ASSOC | CHECK_PROMOTION},
/* AND */ {9, LEFT_ASSOC | CHECK_PROMOTION},
/* OR */ {7, LEFT_ASSOC | CHECK_PROMOTION},
/* XOR */ {8, LEFT_ASSOC | CHECK_PROMOTION},
/* RSHIFT */ {13, LEFT_ASSOC},
/* LSHIFT */ {13, LEFT_ASSOC},
/* COMPL */ {16, NO_L_OPERAND},
/* AND_AND */ {6, LEFT_ASSOC},
/* OR_OR */ {5, LEFT_ASSOC},
/* Note that QUERY, COLON, and COMMA must have the same precedence.
However, there are some special cases for these in reduce(). */
/* QUERY */ {4, 0},
/* COLON */ {4, LEFT_ASSOC | CHECK_PROMOTION},
/* COMMA */ {4, LEFT_ASSOC},
/* OPEN_PAREN */ {1, NO_L_OPERAND},
/* CLOSE_PAREN */ {0, 0},
/* EOF */ {0, 0},
/* EQ_EQ */ {11, LEFT_ASSOC},
/* NOT_EQ */ {11, LEFT_ASSOC},
/* GREATER_EQ */ {12, LEFT_ASSOC | CHECK_PROMOTION},
/* LESS_EQ */ {12, LEFT_ASSOC | CHECK_PROMOTION},
/* UPLUS */ {16, NO_L_OPERAND},
/* UMINUS */ {16, NO_L_OPERAND}
};
1995-03-16 22:59:07 +01:00
/* Parse and evaluate a C expression, reading from PFILE.
Returns the truth value of the expression.
The implementation is an operator precedence parser, i.e. a
bottom-up parser, using a stack for not-yet-reduced tokens.
The stack base is op_stack, and the current stack pointer is 'top'.
There is a stack element for each operator (only), and the most
recently pushed operator is 'top->op'. An operand (value) is
stored in the 'value' field of the stack element of the operator
that precedes it. */
bool
_cpp_parse_expr (cpp_reader *pfile, bool is_if)
1995-03-16 22:59:07 +01:00
{
struct op *top = pfile->op_stack;
unsigned int lex_count;
bool saw_leading_not, want_value = true;
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
source_location virtual_location = 0;
pfile->state.skip_eval = 0;
1995-03-16 22:59:07 +01:00
New macro expander. 2000-10-28 Neil Booth <neilb@earthling.net> New macro expander. * cpplib.c (struct answer): New. (struct if_stack): Use cpp_lexer_pos rather than line and col. Rename cmacro mi_cmacro. (struct directive, KANDR, STDC89, EXTENSION, COND, IF_COND, INCL, IN_I): New directive and flags. (skip_rest_of_line, check_eol, run_directive, glue_header_name, parse_answer, parse_assertion, find_answer): New functions. (parse_ifdef, detect_if_not_defined, validate_else): Remove. (lex_macro_node): New function to replace parse_ifdef and get_define_node. (_cpp_handle_directive): New function, combines _cpp_check_directive and _cpp_check_linemarker. (do_define, do_undef, parse_include, do_include, do_import, do_include_next, read_line_number, do_line, do_ident, do_pragma, do_pragma_once, do_pragma_poison, do_pragma_dependency): Update for new token getting interface. (do_ifdef, do_ifndef, do_if, do_else, do_endif, push_conditional) : Update for new multiple-include optimisation technique. (do_elif): Don't forget to invalidate controlling macros. (unwind_if_stack, cpp_defined, cpp_push_buffer, cpp_pop_buffer): Update. (parse_assertion, parse_answer, find_answer, _cpp_test_assertion): Functions to handle assertions with the new token interface. (do_assert, do_unassert): Use them. (cpp_define, _cpp_define_builtin, cpp_undef, cpp_assert, cpp_unassert): Use run_directive. (_cpp_init_stacks): Register directive names. Don't register special nodes. * cpperror.c (print_containing_files, _cpp_begin_message): Update to new position recording regime. (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line): Update for _cpp_begin_message changes. (cpp_type2name): Move to cpplex.c. * cppexp.c (parse_charconst): spec_nodes is no longer a pointer. (parse_defined): Update to handle new multiple include optimisation method. Remove poisoned identifier warning. (parse_assertion, TYPE_NAME): Delete. (lex): Update for multiple include optimisation, removal of CPP_DEFINED, to use _cpp_test_assertion for assertions and cpp_token_as_text. (_cpp_parse_expr): Update for MI optimisation, and to use op_as_text. (op_as_text): New function, to wrap cpp_token_as_text. * cppfiles.c (stack_include_file, _cpp_pop_file_buffer): Update for MI optimisation. (_cpp_execute_include): Take a token rather than 3 arguments. Fix segfault on diagnostic. (_cpp_compare_file_date): Take a token rather than 3 args. (cpp_read_file): Work correctly for zero-length files. * cpphash.c (_cpp_init_macros, _cpp_cleanup_macros): Rename _cpp_init_hashtable and _cpp_cleanup_hashtable. (cpp_lookup): Place identifiers at front of identifier pool for _cpp_lookup_with_hash. (_cpp_lookup_with_hash): Require identifiers to be at the front of the identifier pool. Commit the memory if not already in the hash table. * cppinit.c (cpp_reader_init): Move cpp_init_completed test to top. Initialise various members of cpp_reader, memory pools, and the special nodes. (cpp_printer_init): Delete. (cpp_cleanup): Update. (struct builtin, builtin_array, initialize_builtins): Update for new hashnode definition and builtin handling. (cpp_start_read, cpp_finish): Don't take or initialise a printer. Update. * cpplib.h (cpp_printer, cpp_toklist, CPP_DEFINED, BOL, PASTED, VAR_ARGS, BEG_OF_FILE, IN_DIRECTIVE, KNOWN_DIRECTIVE, T_VOID, T_SPECLINE, T_DATE, T_FILE, T_BASE_FILE, T_INCLUDE_LEVEL, T_TIME, T_STDC, T_OPERATOR, T_POISON, T_MACRO, T_ASSERTION): Delete. (struct cpp_pool, struct cpp_macro, struct cpp_lexer_pos, struct cpp_lookahead, CPP_DHASH, enum mi_state, enum mi_ind, NO_EXPAND, VARARGS_FIRST, struct cpp_token_with_pos, struct toklist, struct cpp_context, struct specnodes, TOKEN_LOOKAHEAD, TOKEN_BUFFSIZE, NODE_OPERATOR, NODE_POISONED, NODE_BUILTIN, NODE_DIAGNOSTIC, NT_VOID, NT_MACRO, NT_ASSERTION, enum builtin_type, cpp_can_paste): New. (struct cpp_token): Delete line and col members. (struct cpp_buffer): New member output_lineno. (struct lexer_state): Delete indented, in_lex_line, seen_dot. Add va_args_ok, poisoned_ok, prevent_expansion, parsing_args. (struct cpp_reader): New members lexer_pos, macro_pos, directive_pos, ident_pool, temp_string_pool, macro_pool, argument_pool, string_pool, base_context, context, directive, mi_state, mi_if_not_defined, mi_lexed, mi_cmacro, mi_ind_cmacro, la_read, la_write, la_unused, mlstring_pos, macro_buffer, macro_buffer_len. Delete members mls_line, mls_column, token_list, potential_control_macro, temp_tokens, temp_cap, temp_alloced, temp_used, first_directive_token, context_cap, cur_context, no_expand_level, paste_level, contexts, args, save_parameter_spellings, need_newline, . Change type of date, time and spec_nodes members. Change prototypes for include and ident callbacks. (struct cpp_hashnode): Change type of name. Remove union members expansion and code. Add members macro, operator and builtin. (cpp_token_len, cpp_token_as_text, cpp_spell_token, cpp_start_read, cpp_finish, cpp_avoid_paste, cpp_get_token, cpp_get_line, cpp_get_output_line, cpp_macro_definition, cpp_start_lookahead, cpp_stop_lookahead): New prototypes. (cpp_printer_init, cpp_dump_definition): Delete prototypes. (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move from cpphash.h. * cpphash.h (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move to cpplib.h. (enum spell_type, struct token_spelling, _cpp_token_spellings, TOKEN_SPELL, TOKEN_NAME, struct answer, FREE_ANSWER, KANDR, STDC89, EXTENSION, COND, EXPAND, INCL, COMMENTS, IN_I, struct directive, directive_handler, struct spec_nodes, _cpp_digraph_spellings, _cpp_free_temp_tokens, _cpp_init_input_buffer, _cpp_grow_token_buffer, _cpp_init_toklist, _cpp_clear_toklist, _cpp_expand_token_space, _cpp_expand_name_space, _cpp_equiv_tokens, _cpp_equiv_toklists, _cpp_process_directive, _cpp_run_directive, _cpp_get_line, _cpp_get_raw_token, _cpp_glue_header_name, _cpp_can_paste, _cpp_check_directive, _cpp_check_linemarker, _cpp_parse_assertion, _cpp_find_answer): Delete. (VALID_SIGN, ALIGN, POOL_FRONT, POOL_LIMIT, POOL_BASE, POOL_SIZE, POOL_USED, POOL_COMMIT, struct cpp_chunk, _cpp_lex_token, _cpp_init_pool, _cpp_free_pool, _cpp_pool_reserve, _cpp_pool_alloc, _cpp_next_chunk, _cpp_lock_pool, _cpp_unlock_pool, _cpp_test_assertion, _cpp_handle_directive, DSC): New. (struct include_file): New member defined. (DO_NOT_REREAD, _cpp_begin_message, _cpp_execute_include, _cpp_compare_file_date): Update. (_cpp_pop_context, _cpp_get_token, _cpp_free_lookaheads, _cpp_push_token): New. (_cpp_init_macros, _cpp_cleanup_macros): Rename to _cpp_init_hashtable, _cpp_cleanup_hashtable. * Makefile.in: Remove cppoutput.c. * cppoutput.c: Delete * fixheader.c (read_scan_file): Update for new cpp_get_token prototype. (recognized_function): New argument LINE. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new cpp_get_token prototype. * scan.h (recognized_function): Update prototype. * po/POTFILES.in: Remove cppoutput.c. From-SVN: r37098
2000-10-28 19:59:06 +02:00
/* Set up detection of #if ! defined(). */
pfile->mi_ind_cmacro = 0;
saw_leading_not = false;
lex_count = 0;
New macro expander. 2000-10-28 Neil Booth <neilb@earthling.net> New macro expander. * cpplib.c (struct answer): New. (struct if_stack): Use cpp_lexer_pos rather than line and col. Rename cmacro mi_cmacro. (struct directive, KANDR, STDC89, EXTENSION, COND, IF_COND, INCL, IN_I): New directive and flags. (skip_rest_of_line, check_eol, run_directive, glue_header_name, parse_answer, parse_assertion, find_answer): New functions. (parse_ifdef, detect_if_not_defined, validate_else): Remove. (lex_macro_node): New function to replace parse_ifdef and get_define_node. (_cpp_handle_directive): New function, combines _cpp_check_directive and _cpp_check_linemarker. (do_define, do_undef, parse_include, do_include, do_import, do_include_next, read_line_number, do_line, do_ident, do_pragma, do_pragma_once, do_pragma_poison, do_pragma_dependency): Update for new token getting interface. (do_ifdef, do_ifndef, do_if, do_else, do_endif, push_conditional) : Update for new multiple-include optimisation technique. (do_elif): Don't forget to invalidate controlling macros. (unwind_if_stack, cpp_defined, cpp_push_buffer, cpp_pop_buffer): Update. (parse_assertion, parse_answer, find_answer, _cpp_test_assertion): Functions to handle assertions with the new token interface. (do_assert, do_unassert): Use them. (cpp_define, _cpp_define_builtin, cpp_undef, cpp_assert, cpp_unassert): Use run_directive. (_cpp_init_stacks): Register directive names. Don't register special nodes. * cpperror.c (print_containing_files, _cpp_begin_message): Update to new position recording regime. (cpp_ice, cpp_fatal, cpp_error, cpp_error_with_line, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_pedwarn_with_file_and_line): Update for _cpp_begin_message changes. (cpp_type2name): Move to cpplex.c. * cppexp.c (parse_charconst): spec_nodes is no longer a pointer. (parse_defined): Update to handle new multiple include optimisation method. Remove poisoned identifier warning. (parse_assertion, TYPE_NAME): Delete. (lex): Update for multiple include optimisation, removal of CPP_DEFINED, to use _cpp_test_assertion for assertions and cpp_token_as_text. (_cpp_parse_expr): Update for MI optimisation, and to use op_as_text. (op_as_text): New function, to wrap cpp_token_as_text. * cppfiles.c (stack_include_file, _cpp_pop_file_buffer): Update for MI optimisation. (_cpp_execute_include): Take a token rather than 3 arguments. Fix segfault on diagnostic. (_cpp_compare_file_date): Take a token rather than 3 args. (cpp_read_file): Work correctly for zero-length files. * cpphash.c (_cpp_init_macros, _cpp_cleanup_macros): Rename _cpp_init_hashtable and _cpp_cleanup_hashtable. (cpp_lookup): Place identifiers at front of identifier pool for _cpp_lookup_with_hash. (_cpp_lookup_with_hash): Require identifiers to be at the front of the identifier pool. Commit the memory if not already in the hash table. * cppinit.c (cpp_reader_init): Move cpp_init_completed test to top. Initialise various members of cpp_reader, memory pools, and the special nodes. (cpp_printer_init): Delete. (cpp_cleanup): Update. (struct builtin, builtin_array, initialize_builtins): Update for new hashnode definition and builtin handling. (cpp_start_read, cpp_finish): Don't take or initialise a printer. Update. * cpplib.h (cpp_printer, cpp_toklist, CPP_DEFINED, BOL, PASTED, VAR_ARGS, BEG_OF_FILE, IN_DIRECTIVE, KNOWN_DIRECTIVE, T_VOID, T_SPECLINE, T_DATE, T_FILE, T_BASE_FILE, T_INCLUDE_LEVEL, T_TIME, T_STDC, T_OPERATOR, T_POISON, T_MACRO, T_ASSERTION): Delete. (struct cpp_pool, struct cpp_macro, struct cpp_lexer_pos, struct cpp_lookahead, CPP_DHASH, enum mi_state, enum mi_ind, NO_EXPAND, VARARGS_FIRST, struct cpp_token_with_pos, struct toklist, struct cpp_context, struct specnodes, TOKEN_LOOKAHEAD, TOKEN_BUFFSIZE, NODE_OPERATOR, NODE_POISONED, NODE_BUILTIN, NODE_DIAGNOSTIC, NT_VOID, NT_MACRO, NT_ASSERTION, enum builtin_type, cpp_can_paste): New. (struct cpp_token): Delete line and col members. (struct cpp_buffer): New member output_lineno. (struct lexer_state): Delete indented, in_lex_line, seen_dot. Add va_args_ok, poisoned_ok, prevent_expansion, parsing_args. (struct cpp_reader): New members lexer_pos, macro_pos, directive_pos, ident_pool, temp_string_pool, macro_pool, argument_pool, string_pool, base_context, context, directive, mi_state, mi_if_not_defined, mi_lexed, mi_cmacro, mi_ind_cmacro, la_read, la_write, la_unused, mlstring_pos, macro_buffer, macro_buffer_len. Delete members mls_line, mls_column, token_list, potential_control_macro, temp_tokens, temp_cap, temp_alloced, temp_used, first_directive_token, context_cap, cur_context, no_expand_level, paste_level, contexts, args, save_parameter_spellings, need_newline, . Change type of date, time and spec_nodes members. Change prototypes for include and ident callbacks. (struct cpp_hashnode): Change type of name. Remove union members expansion and code. Add members macro, operator and builtin. (cpp_token_len, cpp_token_as_text, cpp_spell_token, cpp_start_read, cpp_finish, cpp_avoid_paste, cpp_get_token, cpp_get_line, cpp_get_output_line, cpp_macro_definition, cpp_start_lookahead, cpp_stop_lookahead): New prototypes. (cpp_printer_init, cpp_dump_definition): Delete prototypes. (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move from cpphash.h. * cpphash.h (U_CHAR, U, ustrcmp, ustrncmp, ustrlen, uxstrdup, ustrchr, ufputs): Move to cpplib.h. (enum spell_type, struct token_spelling, _cpp_token_spellings, TOKEN_SPELL, TOKEN_NAME, struct answer, FREE_ANSWER, KANDR, STDC89, EXTENSION, COND, EXPAND, INCL, COMMENTS, IN_I, struct directive, directive_handler, struct spec_nodes, _cpp_digraph_spellings, _cpp_free_temp_tokens, _cpp_init_input_buffer, _cpp_grow_token_buffer, _cpp_init_toklist, _cpp_clear_toklist, _cpp_expand_token_space, _cpp_expand_name_space, _cpp_equiv_tokens, _cpp_equiv_toklists, _cpp_process_directive, _cpp_run_directive, _cpp_get_line, _cpp_get_raw_token, _cpp_glue_header_name, _cpp_can_paste, _cpp_check_directive, _cpp_check_linemarker, _cpp_parse_assertion, _cpp_find_answer): Delete. (VALID_SIGN, ALIGN, POOL_FRONT, POOL_LIMIT, POOL_BASE, POOL_SIZE, POOL_USED, POOL_COMMIT, struct cpp_chunk, _cpp_lex_token, _cpp_init_pool, _cpp_free_pool, _cpp_pool_reserve, _cpp_pool_alloc, _cpp_next_chunk, _cpp_lock_pool, _cpp_unlock_pool, _cpp_test_assertion, _cpp_handle_directive, DSC): New. (struct include_file): New member defined. (DO_NOT_REREAD, _cpp_begin_message, _cpp_execute_include, _cpp_compare_file_date): Update. (_cpp_pop_context, _cpp_get_token, _cpp_free_lookaheads, _cpp_push_token): New. (_cpp_init_macros, _cpp_cleanup_macros): Rename to _cpp_init_hashtable, _cpp_cleanup_hashtable. * Makefile.in: Remove cppoutput.c. * cppoutput.c: Delete * fixheader.c (read_scan_file): Update for new cpp_get_token prototype. (recognized_function): New argument LINE. * scan-decls.c (skip_to_closing_brace, scan_decls): Update for new cpp_get_token prototype. * scan.h (recognized_function): Update prototype. * po/POTFILES.in: Remove cppoutput.c. From-SVN: r37098
2000-10-28 19:59:06 +02:00
/* Lowest priority operator prevents further reductions. */
top->op = CPP_EOF;
1995-03-16 22:59:07 +01:00
for (;;)
{
struct op op;
1995-03-16 22:59:07 +01:00
lex_count++;
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
op.token = cpp_get_token_with_location (pfile, &virtual_location);
op.op = op.token->type;
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
op.loc = virtual_location;
1995-03-16 22:59:07 +01:00
switch (op.op)
{
/* These tokens convert into values. */
case CPP_NUMBER:
case CPP_CHAR:
case CPP_WCHAR:
cpp-id-data.h (UC): Was U, conflicts with U... libcpp/ChangeLog: 2008-04-14 Kris Van Hees <kris.van.hees@oracle.com> * include/cpp-id-data.h (UC): Was U, conflicts with U... literal. * include/cpplib.h (CHAR16, CHAR32, STRING16, STRING32): New tokens. (struct cpp_options): Added uliterals. (cpp_interpret_string): Update prototype. (cpp_interpret_string_notranslate): Idem. * charset.c (init_iconv_desc): New width member in cset_converter. (cpp_init_iconv): Add support for char{16,32}_cset_desc. (convert_ucn): Idem. (emit_numeric_escape): Idem. (convert_hex): Idem. (convert_oct): Idem. (convert_escape): Idem. (converter_for_type): New function. (cpp_interpret_string): Use converter_for_type, support u and U prefix. (cpp_interpret_string_notranslate): Match changed prototype. (wide_str_to_charconst): Use converter_for_type. (cpp_interpret_charconst): Add support for CPP_CHAR{16,32}. * directives.c (linemarker_dir): Macro U changed to UC. (parse_include): Idem. (register_pragma_1): Idem. (restore_registered_pragmas): Idem. (get__Pragma_string): Support CPP_STRING{16,32}. * expr.c (eval_token): Support CPP_CHAR{16,32}. * init.c (struct lang_flags): Added uliterals. (lang_defaults): Idem. * internal.h (struct cset_converter) <width>: New field. (struct cpp_reader) <char16_cset_desc>: Idem. (struct cpp_reader) <char32_cset_desc>: Idem. * lex.c (digraph_spellings): Macro U changed to UC. (OP, TK): Idem. (lex_string): Add support for u'...', U'...', u... and U.... (_cpp_lex_direct): Idem. * macro.c (_cpp_builtin_macro_text): Macro U changed to UC. (stringify_arg): Support CPP_CHAR{16,32} and CPP_STRING{16,32}. gcc/ChangeLog: 2008-04-14 Kris Van Hees <kris.van.hees@oracle.com> * c-common.c (CHAR16_TYPE, CHAR32_TYPE): New macros. (fname_as_string): Match updated cpp_interpret_string prototype. (fix_string_type): Support char16_t* and char32_t*. (c_common_nodes_and_builtins): Add char16_t and char32_t (and derivative) nodes. Register as builtin if C++0x. (c_parse_error): Support CPP_CHAR{16,32}. * c-common.h (RID_CHAR16, RID_CHAR32): New elements. (enum c_tree_index) <CTI_CHAR16_TYPE, CTI_SIGNED_CHAR16_TYPE, CTI_UNSIGNED_CHAR16_TYPE, CTI_CHAR32_TYPE, CTI_SIGNED_CHAR32_TYPE, CTI_UNSIGNED_CHAR32_TYPE, CTI_CHAR16_ARRAY_TYPE, CTI_CHAR32_ARRAY_TYPE>: New elements. (char16_type_node, signed_char16_type_node, unsigned_char16_type_node, char32_type_node, signed_char32_type_node, char16_array_type_node, char32_array_type_node): New defines. * c-lex.c (cb_ident): Match updated cpp_interpret_string prototype. (c_lex_with_flags): Support CPP_CHAR{16,32} and CPP_STRING{16,32}. (lex_string): Support CPP_STRING{16,32}, match updated cpp_interpret_string and cpp_interpret_string_notranslate prototypes. (lex_charconst): Support CPP_CHAR{16,32}. * c-parser.c (c_parser_postfix_expression): Support CPP_CHAR{16,32} and CPP_STRING{16,32}. gcc/cp/ChangeLog: 2008-04-14 Kris Van Hees <kris.van.hees@oracle.com> * cvt.c (type_promotes_to): Support char16_t and char32_t. * decl.c (grokdeclarator): Disallow signed/unsigned/short/long on char16_t and char32_t. * lex.c (reswords): Add char16_t and char32_t (for c++0x). * mangle.c (write_builtin_type): Mangle char16_t/char32_t as vendor extended builtin type u8char32_t. * parser.c (cp_lexer_next_token_is_decl_specifier_keyword): Support RID_CHAR{16,32}. (cp_lexer_print_token): Support CPP_STRING{16,32}. (cp_parser_is_string_literal): Idem. (cp_parser_string_literal): Idem. (cp_parser_primary_expression): Support CPP_CHAR{16,32} and CPP_STRING{16,32}. (cp_parser_simple_type_specifier): Support RID_CHAR{16,32}. * tree.c (char_type_p): Support char16_t and char32_t as char types. * typeck.c (string_conv_p): Support char16_t and char32_t. gcc/testsuite/ChangeLog: 2008-04-14 Kris Van Hees <kris.van.hees@oracle.com> Tests for char16_t and char32_t support. * g++.dg/ext/utf-cvt.C: New * g++.dg/ext/utf-cxx0x.C: New * g++.dg/ext/utf-cxx98.C: New * g++.dg/ext/utf-dflt.C: New * g++.dg/ext/utf-gnuxx0x.C: New * g++.dg/ext/utf-gnuxx98.C: New * g++.dg/ext/utf-mangle.C: New * g++.dg/ext/utf-typedef-cxx0x.C: New * g++.dg/ext/utf-typedef- * g++.dg/ext/utf-typespec.C: New * g++.dg/ext/utf16-1.C: New * g++.dg/ext/utf16-2.C: New * g++.dg/ext/utf16-3.C: New * g++.dg/ext/utf16-4.C: New * g++.dg/ext/utf32-1.C: New * g++.dg/ext/utf32-2.C: New * g++.dg/ext/utf32-3.C: New * g++.dg/ext/utf32-4.C: New * gcc.dg/utf-cvt.c: New * gcc.dg/utf-dflt.c: New * gcc.dg/utf16-1.c: New * gcc.dg/utf16-2.c: New * gcc.dg/utf16-3.c: New * gcc.dg/utf16-4.c: New * gcc.dg/utf32-1.c: New * gcc.dg/utf32-2.c: New * gcc.dg/utf32-3.c: New * gcc.dg/utf32-4.c: New libiberty/ChangeLog: 2008-04-14 Kris Van Hees <kris.van.hees@oracle.com> * testsuite/demangle-expected: Added tests for char16_t and char32_t. From-SVN: r134438
2008-04-18 15:58:08 +02:00
case CPP_CHAR16:
case CPP_CHAR32:
Implement N4197 - Adding u8 character literals libcpp: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * include/cpplib.h (UTF8CHAR, UTF8CHAR_USERDEF): New cpp tokens; (struct cpp_options): Add utf8_char_literals. * init.c (struct lang_flags): Add utf8_char_literals; (struct lang_flags lang_defaults): Add column for utf8_char_literals. * macro.c (stringify_arg()): Treat CPP_UTF8CHAR token; * expr.c (cpp_userdef_char_remove_type(), cpp_userdef_char_add_type()): Treat CPP_UTF8CHAR_USERDEF, CPP_UTF8CHAR tokens; (cpp_userdef_char_p()): Treat CPP_UTF8CHAR_USERDEF token; (eval_token(), _cpp_parse_expr()): Treat CPP_UTF8CHAR token. * lex.c (lex_string(), _cpp_lex_direct()): Include CPP_UTF8CHAR tokens. * charset.c (converter_for_type(), cpp_interpret_charconst()): Treat CPP_UTF8CHAR token. gcc/c-family: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * c-family/c-ada-spec.c (print_ada_macros()): Treat CPP_UTF8CHAR like CPP_CHAR. * c-family/c-common.c (c_parse_error()): print CPP_UTF8CHAR and CPP_UTF8CHAR_USERDEF tokens. * c-family/c-lex.c (c_lex_with_flags()): Treat CPP_UTF8CHAR_USERDEF and CPP_UTF8CHAR tokens; (lex_charconst()): Treat CPP_UTF8CHAR token. gcc/cp: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * parser.c (cp_parser_primary_expression()): Treat CPP_UTF8CHAR and CPP_UTF8CHAR_USERDEF tokens; (cp_parser_parenthesized_expression_list()): Treat CPP_UTF8CHAR token. gcc/testsuite: 2015-06-30 Edward Smith-Rowland <3dw4rd@verizon.net> Implement N4197 - Adding u8 character literals * g++.dg/cpp1z/utf8.C: New. * g++.dg/cpp1z/utf8-neg.C: New. * g++.dg/cpp1z/udlit-utf8char.C: New. From-SVN: r225185
2015-06-30 14:58:48 +02:00
case CPP_UTF8CHAR:
case CPP_NAME:
case CPP_HASH:
if (!want_value)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR2_AT (op.loc,
"missing binary operator before token \"%s\"",
cpp_token_as_text (pfile, op.token));
want_value = false;
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
top->value = eval_token (pfile, op.token, op.loc);
continue;
case CPP_NOT:
saw_leading_not = lex_count == 1;
break;
case CPP_PLUS:
if (want_value)
op.op = CPP_UPLUS;
break;
case CPP_MINUS:
if (want_value)
op.op = CPP_UMINUS;
break;
default:
if ((int) op.op <= (int) CPP_EQ || (int) op.op >= (int) CPP_PLUS_EQ)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR2_AT (op.loc,
"token \"%s\" is not valid in preprocessor expressions",
cpp_token_as_text (pfile, op.token));
break;
1995-03-16 22:59:07 +01:00
}
/* Check we have a value or operator as appropriate. */
if (optab[op.op].flags & NO_L_OPERAND)
1995-03-16 22:59:07 +01:00
{
if (!want_value)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR2_AT (op.loc,
"missing binary operator before token \"%s\"",
cpp_token_as_text (pfile, op.token));
}
else if (want_value)
{
/* We want a number (or expression) and haven't got one.
Try to emit a specific diagnostic. */
if (op.op == CPP_CLOSE_PAREN && top->op == CPP_OPEN_PAREN)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR_AT (op.loc,
"missing expression between '(' and ')'");
if (op.op == CPP_EOF && top->op == CPP_EOF)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR2_AT (op.loc,
"%s with no expression", is_if ? "#if" : "#elif");
if (top->op != CPP_EOF && top->op != CPP_OPEN_PAREN)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR2_AT (op.loc,
"operator '%s' has no right operand",
cpp_token_as_text (pfile, top->token));
else if (op.op == CPP_CLOSE_PAREN || op.op == CPP_EOF)
/* Complain about missing paren during reduction. */;
else
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR2_AT (op.loc,
"operator '%s' has no left operand",
cpp_token_as_text (pfile, op.token));
1995-03-16 22:59:07 +01:00
}
top = reduce (pfile, top, op.op);
if (!top)
goto syntax_error;
if (op.op == CPP_EOF)
break;
switch (op.op)
{
case CPP_CLOSE_PAREN:
continue;
case CPP_OR_OR:
if (!num_zerop (top->value))
pfile->state.skip_eval++;
break;
case CPP_AND_AND:
case CPP_QUERY:
if (num_zerop (top->value))
pfile->state.skip_eval++;
break;
case CPP_COLON:
if (top->op != CPP_QUERY)
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
SYNTAX_ERROR_AT (op.loc,
" ':' without preceding '?'");
if (!num_zerop (top[-1].value)) /* Was '?' condition true? */
pfile->state.skip_eval++;
else
pfile->state.skip_eval--;
default:
break;
}
want_value = true;
1996-07-04 00:07:53 +02:00
/* Check for and handle stack overflow. */
if (++top == pfile->op_limit)
top = _cpp_expand_op_stack (pfile);
1995-03-16 22:59:07 +01:00
top->op = op.op;
top->token = op.token;
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
top->loc = op.loc;
1995-03-16 22:59:07 +01:00
}
/* The controlling macro expression is only valid if we called lex 3
times: <!> <defined expression> and <EOF>. push_conditional ()
checks that we are at top-of-file. */
if (pfile->mi_ind_cmacro && !(saw_leading_not && lex_count == 3))
pfile->mi_ind_cmacro = 0;
if (top != pfile->op_stack)
cpperror.c (print_location): Don't print include chain if line == 0. * cpperror.c (print_location): Don't print include chain if line == 0. (cpp_begin_message): Update to use DL_ macros. (cpp_ice, cpp_fatal, cpp_error_from_errno, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_notice, cpp_notice_from_errno): Remove. (cpp_error, cpp_error_with_line): Update to take a diagnostic level. (cpp_errno): New. * cppexp.c (CPP_ICE): Remove. (SYNTAX_ERROR, SYNTAX_ERROR2, parse_number, parse_defined, lex, integer_overflow, _cpp_parse_expr): Update. * cppfiles.c (read_include_file, find_include_file, handle_missing_header, _cpp_read_file, remap_filename): Update. * cpphash.h (enum error_type): Remove. (_cpp_begin_message): Update. * cppinit.c (append_include_chain, remove_dup_dirs, output_deps, cpp_handle_option, cpp_post_options): Update. * cpplex.c (trigraph_p, skip_escaped_newlines, skip_block_comment, skip_whitespace, parse_identifier, parse_slow, parse_string, _cpp_lex_direct, cpp_spell_token, maybe_read_ucs, cpp_parse_escape, cpp_interpret_charconst): Update. * cpplib.c (check_eol, directive_diagnostics, _cpp_handle_directive, lex_macro_node, do_undef, glue_header_name, parse_include, do_include_common, read_flag, do_line, do_linemarker, do_ident, cpp_register_pragma, do_pragma_once, do_pragma_system_header, do_pragma_poison, do_pragma_dependency, _cpp_do__Pragma, do_else, do_elif, do_endif, parse_answer, parse_assertion, do_assert, _cpp_pop_buffer, do_diagnostic): Update. * cpplib.h (DL_WARNING, DL_WARNING_SYSHDR, DL_PEDWARN, DL_ERROR, DL_FATAL, DL_ICE, DL_EXTRACT, DL_WARNING_P): New. (cpp_ice, cpp_fatal, cpp_error_from_errno, cpp_warning, cpp_warning_with_line, cpp_pedwarn, cpp_pedwarn_with_line, cpp_notice, cpp_notice_from_errno): Remove. (cpp_error, cpp_error_with_line): Update to take a diagnostic level. (cpp_errno): New. * cppmacro.c (builtin_macro, stringify_arg, paste_all_tokens, collect_args, enter_macro_context, save_parameter, parse_params, _cpp_create_definition, check_trad_stringification, cpp_macro_definition): Update. * cppmain.c (cpp_preprocess_file): Update. * fix-header.c (read_scan_file): Update. From-SVN: r52302
2002-04-14 20:42:47 +02:00
{
PR preprocessor/7263 - Avoid pedantic warnings on system headers macro tokens Now that we track token locations accross macro expansions, it would be cool to be able to fix PR preprocessor/7263 for real. That is, consider this example where we have a system header named header.h like this: #define _Complex __complex__ #define _Complex_I 1.0iF and then a normal C file like this: #include "header.h" static _Complex float c = _Complex_I; If we compile the file with -pedantic, the usages of _Complex or _Complex_I should not trigger any warning, even though __complex__ and the complex literal are extensions to the standard C. They shouldn't trigger any warning because _Complex and _Complex_I are defined in a system header (and expanded in normal user code). To be able to handle this, we must address two separate concerns. First, warnings about non-standard usage of numerical literals are emitted directly from within libcpp. So we must teach libcpp's parser for numerical literals to use virtual locations, instead of the spelling location it uses today. Once we have that, as the diagnostics machinery already knows how to avoid emitting errors happening on tokens that come from system headers, we win. Second, there is the issue of tracking locations for declaration specifiers, like the "_Complex" in the declaration: static _Complex float c; For that, we need to arrange for each possible declaration specifier to have its own location, because otherwise, we'd warn on e.g, on: _Complex float c; but not on: static _Complex float c; So this patch addresses the two concerns above. It's actually a follow-up on an earlier patch[1] I wrote as part of my initial work on virtual locations. We then agreed[2] that the second concern was important to address before the patch could get a chance to go in. [1]: http://gcc.gnu.org/ml/gcc-patches/2011-09/msg00957.html [2]: http://gcc.gnu.org/ml/gcc-patches/2011-10/msg00264.html Bootstrapped and tested on x86_64-unknown-linux-gnu against trunk. libcpp/ PR preprocessor/7263 * include/cpplib.h (cpp_classify_number): Take a location parameter. * expr.c (SYNTAX_ERROR_AT, SYNTAX_ERROR2_AT): New diagnostic macros that take a location parameter. (cpp_classify_number): Take a (virtual) location parameter. Use it for diagnostics. Adjust comments. (eval_token): Take a location parameter. Pass it to cpp_classify_number and to diagnostic routines. (_cpp_parse_expr): Use virtual locations of tokens when parsing expressions. Pass a virtual location to eval_token and to diagnostic routines. gcc/c-family/ PR preprocessor/7263 * c-lex.c (c_lex_with_flags): Pass a virtual location to the call to cpp_classify_number. For diagnostics, use the precise location instead of the global input_location. gcc/ PR preprocessor/7263 * c-tree.h (enum c_declspec_word): Declare new enum. (struct c_declspecs::locations): New member. (declspecs_add_qual, declspecs_add_scspec) (declspecs_add_addrspace, declspecs_add_alignas): Take a new location parameter. * c-decl.c (build_null_declspecs): Initialize the new struct c_declspecs::locations member. (declspecs_add_addrspace): Take a location parameter for the address space. Store it onto declaration specifiers. (declspecs_add_qual): Likewise, take a location parameter for the qualifier. (declspecs_add_type): Likewise, take a location parameter for the type specifier. (declspecs_add_scspec): Likewise, take a location parameter for the storage class specifier. (declspecs_add_attrs): Likewise, take a location parameter for the first attribute. (declspecs_add_alignas): Likewise, take a location parameter for the alignas token. (finish_declspecs): For diagnostics, use the location of the relevant declspec, instead of the global input_location. * c-parser.c (c_parser_parameter_declaration): Pass the precise virtual location of the declspec to the declspecs-setters. (c_parser_declspecs): Likewise. Avoid calling c_parser_peek_token repeatedly. gcc/cp/ PR preprocessor/7263 * cp-tree.h (enum cp_decl_spec): Add new enumerators to cover all the possible declarator specifiers so far. (struct cp_decl_specifier_seq::locations): Declare new member. (cp_decl_specifier_seq::{specs, type_location}): Remove. (decl_spec_seq_has_spec_p): Declare new function. * parser.c (cp_parser_check_decl_spec): Remove. (set_and_check_decl_spec_loc): Define new static function. (decl_spec_seq_has_spec_p): Define new public function. (cp_parser_decl_specifier_seq, cp_parser_function_specifier_opt) (cp_parser_type_specifier, cp_parser_simple_type_specifier) (cp_parser_set_storage_class, cp_parser_set_decl_spec_type) (cp_parser_alias_declaration): Set the locations for each declspec, using set_and_check_decl_spec_loc. (cp_parser_explicit_instantiation, cp_parser_init_declarator) (cp_parser_member_declaration, cp_parser_init_declarator): Use the new declspec location for specifiers. Use the new decl_spec_seq_has_spec_p. (cp_parser_type_specifier_seq): Use the new set_and_check_decl_spec_loc. Stop using cp_parser_check_decl_spec. Use the new decl_spec_seq_has_spec_p. (, cp_parser_init_declarator): Use the new set_and_check_decl_spec_loc. (cp_parser_single_declaration, cp_parser_friend_p) (cp_parser_objc_class_ivars, cp_parser_objc_struct_declaration): Use the new decl_spec_seq_has_spec_p. * decl.c (check_tag_decl): Use new decl_spec_seq_has_spec_p. Use the more precise ds_redefined_builtin_type_spec location for diagnostics about re-declaring C++ built-in types. (start_decl, grokvardecl, grokdeclarator): Use the new decl_spec_seq_has_spec_p. gcc/testsuite/ PR preprocessor/7263 * gcc.dg/binary-constants-2.c: Run without tracking locations accross macro expansion. * gcc.dg/binary-constants-3.c: Likewise. * gcc.dg/cpp/sysmac2.c: Likewise. * testsuite/gcc.dg/nofixed-point-2.c: Adjust for more precise location. * gcc.dg/cpp/syshdr3.c: New test. * gcc.dg/cpp/syshdr3.h: New header for the new test above. * gcc.dg/system-binary-constants-1.c: New test. * gcc.dg/system-binary-constants-1.h: New header for the new test above. * g++.dg/cpp/syshdr3.C: New test. * g++.dg/cpp/syshdr3.h: New header the new test above. * g++.dg/system-binary-constants-1.C: New test. * g++.dg/system-binary-constants-1.h: New header the new test above. From-SVN: r187587
2012-05-16 12:51:15 +02:00
cpp_error_with_line (pfile, CPP_DL_ICE, top->loc, 0,
"unbalanced stack in %s",
is_if ? "#if" : "#elif");
syntax_error:
return false; /* Return false on syntax error. */
}
return !num_zerop (top->value);
}
/* Reduce the operator / value stack if possible, in preparation for
pushing operator OP. Returns NULL on error, otherwise the top of
the stack. */
static struct op *
reduce (cpp_reader *pfile, struct op *top, enum cpp_ttype op)
{
unsigned int prio;
if (top->op <= CPP_EQ || top->op > CPP_LAST_CPP_OP + 2)
{
bad_op:
cpp_error (pfile, CPP_DL_ICE, "impossible operator '%u'", top->op);
return 0;
}
if (op == CPP_OPEN_PAREN)
return top;
/* Decrement the priority of left-associative operators to force a
reduction with operators of otherwise equal priority. */
prio = optab[op].prio - ((optab[op].flags & LEFT_ASSOC) != 0);
while (prio < optab[top->op].prio)
{
if (CPP_OPTION (pfile, warn_num_sign_change)
&& optab[top->op].flags & CHECK_PROMOTION)
check_promotion (pfile, top);
switch (top->op)
{
case CPP_UPLUS:
case CPP_UMINUS:
case CPP_NOT:
case CPP_COMPL:
top[-1].value = num_unary_op (pfile, top->value, top->op);
top[-1].loc = top->loc;
break;
case CPP_PLUS:
case CPP_MINUS:
case CPP_RSHIFT:
case CPP_LSHIFT:
case CPP_COMMA:
top[-1].value = num_binary_op (pfile, top[-1].value,
top->value, top->op);
top[-1].loc = top->loc;
break;
case CPP_GREATER:
case CPP_LESS:
case CPP_GREATER_EQ:
case CPP_LESS_EQ:
top[-1].value
= num_inequality_op (pfile, top[-1].value, top->value, top->op);
top[-1].loc = top->loc;
break;
case CPP_EQ_EQ:
case CPP_NOT_EQ:
top[-1].value
= num_equality_op (pfile, top[-1].value, top->value, top->op);
top[-1].loc = top->loc;
break;
case CPP_AND:
case CPP_OR:
case CPP_XOR:
top[-1].value
= num_bitwise_op (pfile, top[-1].value, top->value, top->op);
top[-1].loc = top->loc;
break;
case CPP_MULT:
top[-1].value = num_mul (pfile, top[-1].value, top->value);
top[-1].loc = top->loc;
break;
case CPP_DIV:
case CPP_MOD:
top[-1].value = num_div_op (pfile, top[-1].value,
top->value, top->op, top->loc);
top[-1].loc = top->loc;
break;
case CPP_OR_OR:
top--;
if (!num_zerop (top->value))
pfile->state.skip_eval--;
top->value.low = (!num_zerop (top->value)
|| !num_zerop (top[1].value));
top->value.high = 0;
top->value.unsignedp = false;
top->value.overflow = false;
top->loc = top[1].loc;
continue;
case CPP_AND_AND:
top--;
if (num_zerop (top->value))
pfile->state.skip_eval--;
top->value.low = (!num_zerop (top->value)
&& !num_zerop (top[1].value));
top->value.high = 0;
top->value.unsignedp = false;
top->value.overflow = false;
top->loc = top[1].loc;
continue;
case CPP_OPEN_PAREN:
if (op != CPP_CLOSE_PAREN)
{
cpp_error_with_line (pfile, CPP_DL_ERROR,
top->token->src_loc,
0, "missing ')' in expression");
return 0;
}
top--;
top->value = top[1].value;
top->loc = top[1].loc;
return top;
case CPP_COLON:
top -= 2;
if (!num_zerop (top->value))
{
pfile->state.skip_eval--;
top->value = top[1].value;
top->loc = top[1].loc;
}
else
{
top->value = top[2].value;
top->loc = top[2].loc;
}
top->value.unsignedp = (top[1].value.unsignedp
|| top[2].value.unsignedp);
continue;
case CPP_QUERY:
/* COMMA and COLON should not reduce a QUERY operator. */
if (op == CPP_COMMA || op == CPP_COLON)
return top;
cpp_error (pfile, CPP_DL_ERROR, "'?' without following ':'");
return 0;
default:
goto bad_op;
}
top--;
if (top->value.overflow && !pfile->state.skip_eval)
cpp_error (pfile, CPP_DL_PEDWARN,
"integer overflow in preprocessor expression");
}
if (op == CPP_CLOSE_PAREN)
{
cpp_error (pfile, CPP_DL_ERROR, "missing '(' in expression");
return 0;
}
return top;
}
/* Returns the position of the old top of stack after expansion. */
struct op *
_cpp_expand_op_stack (cpp_reader *pfile)
{
size_t old_size = (size_t) (pfile->op_limit - pfile->op_stack);
size_t new_size = old_size * 2 + 20;
configure.ac: Check declarations for asprintf and vasprintf. * configure.ac: Check declarations for asprintf and vasprintf. * config.in: Regenerate. * configure: Likewise. * charset.c (conversion_loop): Use XRESIZEVEC. (convert_no_conversion): Likewise. (convert_using_iconv): Likewise. (init_iconv_desc): Cast return value of alloca. (cpp_host_to_exec_charset): Use XNEWVEC. (emit_numeric_escape): Use XRESIZEVEC. (cpp_interpret_string): Use XNEWVEC. (cpp_interpret_string): Use XRESIZEVEC. (_cpp_interpret_identifier): Cast return value of alloca. (_cpp_convert_input): Use XNEWVEC and XRESIZEVEC. * directives.c (glue_header_name): Use XNEWVEC and XRESIZEVEC. (parse_include): Use XNEWVEC. (insert_pragma_entry): Rename local variable "new" to "new_entry". (save_registered_pragmas): Cast return value of xmemdup. (destringize_and_run): Same for alloca. (parse_assertion): Likewise. (do_assert): Cast allocated storage to proper type. (cpp_define): Likewise. (_cpp_define_builtin): Likewise. (cpp_undef): Likewise. (handle_assertion): Likewise. (cpp_push_buffer): Rename local variable "new" to "new_buffer". * expr.c (CPP_UPLUS): Cast value to type cpp_ttype. (CPP_UMINUS): Likewise. (struct cpp_operator): Rename from struct operator. (_cpp_expand_op_stack): Use XRESIZEVEC. * files.c (pch_open_file): Use XNEWVEC. (pch_open_file): Use XRESIZEVEC. (read_file_guts): Use XNEWVEC and XRESIZEVEC. (dir_name_of_file): Use XNEWVEC. (make_cpp_file): Use XCNEW. (make_cpp_dir): Likewise. (allocate_file_hash_entries): USE XNEWVEC. (cpp_included): Cast return value of htab_find_with_hash. (append_file_to_dir): Use XNEWVEC. (read_filename_string): Likewise. Use XRESIZEVEC too. (read_name_map): Cast return value of alloca. Use XRESIZEVEC. (remap_filename): Use XNEWVEC. (struct pchf_entry): Move definition out of struct pchf_data. (_cpp_save_file_entries): Use XCNEWVAR. (_cpp_read_file_entries): Use XNEWVAR. * identifiers.c (alloc_node): Use XOBNEW. * init.c (cpp_create_reader): Use XCNEW. (cpp_init_builtins): Cast of b->value to enum builtin_type. (read_original_directory): Cast return value of alloca. * lex.c (add_line_note): Use XRESIZEVEC. (warn_about_normalization): Use XNEWVEC. (_cpp_lex_direct): Cast node->directive_index to (enum cpp_ttype). (new_buff): Use XNEWVEC. * line-map.c (linemap_add): Use XRESIZEVEC. * macro.c (builtin_macro): Cast return value of alloca. (paste_tokens): Likewise. (expand_arg): Use XNEWVEC and XRESIZEVEC. (_cpp_save_parameter): Use XRESIZEVEC. (create_iso_definition): Cast allocated storage to proper type. (_cpp_create_definition): Likewise. (cpp_macro_definition): Use XRESIZEVEC. * makedepend.c (add_clm): Use XNEW. (add_dir): Likewise. * mkdeps.c (munge): Use XNEWVEC. (deps_init): Use XCNEW. (deps_add_target): Use XRESIZEVEC. (deps_add_default_target): Cast return value of alloca. (deps_add_dep): Use XRESIZEVEC. (deps_add_vpath): Likewise. Use XNEWVEC too. (deps_restore): Likewise. * pch.c (save_idents): Use XNEW and XNEWVEC. (cpp_save_state): Use XNEW. (count_defs): Cast return value of htab_find. (write_defs): Likewise. (cpp_write_pch_deps): Use XNEWVEC. (collect_ht_nodes): Use XRESIZEVEC. (cpp_valid_state): Use XNEWVEC. (save_macros): Use XRESIZEVEC. Cast return value of xmemdup. * symtab.c (ht_create): Use XCNEW. (ht_lookup_with_hash): Cast return value of obstack_copy0. (ht_expand): Use XCNEWVEC. * system.h (HAVE_DESIGNATED_INITIALIZERS): False if __cplusplus. (bool): Do not define if __cplusplus. From-SVN: r100295
2005-05-28 17:52:48 +02:00
pfile->op_stack = XRESIZEVEC (struct op, pfile->op_stack, new_size);
pfile->op_limit = pfile->op_stack + new_size;
return pfile->op_stack + old_size;
1995-03-16 22:59:07 +01:00
}
/* Emits a warning if the effective sign of either operand of OP
changes because of integer promotions. */
static void
check_promotion (cpp_reader *pfile, const struct op *op)
{
if (op->value.unsignedp == op[-1].value.unsignedp)
return;
if (op->value.unsignedp)
{
if (!num_positive (op[-1].value, CPP_OPTION (pfile, precision)))
cpp_error_with_line (pfile, CPP_DL_WARNING, op[-1].loc, 0,
"the left operand of \"%s\" changes sign when promoted",
cpp_token_as_text (pfile, op->token));
}
else if (!num_positive (op->value, CPP_OPTION (pfile, precision)))
cpp_error_with_line (pfile, CPP_DL_WARNING, op->loc, 0,
"the right operand of \"%s\" changes sign when promoted",
cpp_token_as_text (pfile, op->token));
}
/* Clears the unused high order bits of the number pointed to by PNUM. */
static cpp_num
num_trim (cpp_num num, size_t precision)
{
if (precision > PART_PRECISION)
{
precision -= PART_PRECISION;
if (precision < PART_PRECISION)
num.high &= ((cpp_num_part) 1 << precision) - 1;
}
else
{
if (precision < PART_PRECISION)
num.low &= ((cpp_num_part) 1 << precision) - 1;
num.high = 0;
}
return num;
}
/* True iff A (presumed signed) >= 0. */
static bool
num_positive (cpp_num num, size_t precision)
{
if (precision > PART_PRECISION)
{
precision -= PART_PRECISION;
return (num.high & (cpp_num_part) 1 << (precision - 1)) == 0;
}
return (num.low & (cpp_num_part) 1 << (precision - 1)) == 0;
}
/* Sign extend a number, with PRECISION significant bits and all
others assumed clear, to fill out a cpp_num structure. */
cpp_num
cpp_num_sign_extend (cpp_num num, size_t precision)
{
if (!num.unsignedp)
{
if (precision > PART_PRECISION)
{
precision -= PART_PRECISION;
if (precision < PART_PRECISION
&& (num.high & (cpp_num_part) 1 << (precision - 1)))
num.high |= ~(~(cpp_num_part) 0 >> (PART_PRECISION - precision));
}
else if (num.low & (cpp_num_part) 1 << (precision - 1))
{
if (precision < PART_PRECISION)
num.low |= ~(~(cpp_num_part) 0 >> (PART_PRECISION - precision));
num.high = ~(cpp_num_part) 0;
}
}
return num;
}
/* Returns the negative of NUM. */
static cpp_num
num_negate (cpp_num num, size_t precision)
{
cpp_num copy;
copy = num;
num.high = ~num.high;
num.low = ~num.low;
if (++num.low == 0)
num.high++;
num = num_trim (num, precision);
num.overflow = (!num.unsignedp && num_eq (num, copy) && !num_zerop (num));
return num;
}
/* Returns true if A >= B. */
static bool
num_greater_eq (cpp_num pa, cpp_num pb, size_t precision)
{
bool unsignedp;
unsignedp = pa.unsignedp || pb.unsignedp;
if (!unsignedp)
{
/* Both numbers have signed type. If they are of different
sign, the answer is the sign of A. */
unsignedp = num_positive (pa, precision);
if (unsignedp != num_positive (pb, precision))
return unsignedp;
/* Otherwise we can do an unsigned comparison. */
}
return (pa.high > pb.high) || (pa.high == pb.high && pa.low >= pb.low);
}
/* Returns LHS OP RHS, where OP is a bit-wise operation. */
static cpp_num
num_bitwise_op (cpp_reader *pfile ATTRIBUTE_UNUSED,
cpp_num lhs, cpp_num rhs, enum cpp_ttype op)
{
lhs.overflow = false;
lhs.unsignedp = lhs.unsignedp || rhs.unsignedp;
/* As excess precision is zeroed, there is no need to num_trim () as
these operations cannot introduce a set bit there. */
if (op == CPP_AND)
{
lhs.low &= rhs.low;
lhs.high &= rhs.high;
}
else if (op == CPP_OR)
{
lhs.low |= rhs.low;
lhs.high |= rhs.high;
}
else
{
lhs.low ^= rhs.low;
lhs.high ^= rhs.high;
}
return lhs;
}
/* Returns LHS OP RHS, where OP is an inequality. */
static cpp_num
num_inequality_op (cpp_reader *pfile, cpp_num lhs, cpp_num rhs,
enum cpp_ttype op)
{
bool gte = num_greater_eq (lhs, rhs, CPP_OPTION (pfile, precision));
if (op == CPP_GREATER_EQ)
lhs.low = gte;
else if (op == CPP_LESS)
lhs.low = !gte;
else if (op == CPP_GREATER)
lhs.low = gte && !num_eq (lhs, rhs);
else /* CPP_LESS_EQ. */
lhs.low = !gte || num_eq (lhs, rhs);
lhs.high = 0;
lhs.overflow = false;
lhs.unsignedp = false;
return lhs;
}
/* Returns LHS OP RHS, where OP is == or !=. */
static cpp_num
num_equality_op (cpp_reader *pfile ATTRIBUTE_UNUSED,
cpp_num lhs, cpp_num rhs, enum cpp_ttype op)
{
/* Work around a 3.0.4 bug; see PR 6950. */
bool eq = num_eq (lhs, rhs);
if (op == CPP_NOT_EQ)
eq = !eq;
lhs.low = eq;
lhs.high = 0;
lhs.overflow = false;
lhs.unsignedp = false;
return lhs;
}
/* Shift NUM, of width PRECISION, right by N bits. */
static cpp_num
num_rshift (cpp_num num, size_t precision, size_t n)
{
cpp_num_part sign_mask;
bool x = num_positive (num, precision);
if (num.unsignedp || x)
sign_mask = 0;
else
sign_mask = ~(cpp_num_part) 0;
if (n >= precision)
num.high = num.low = sign_mask;
else
{
/* Sign-extend. */
if (precision < PART_PRECISION)
num.high = sign_mask, num.low |= sign_mask << precision;
else if (precision < 2 * PART_PRECISION)
num.high |= sign_mask << (precision - PART_PRECISION);
if (n >= PART_PRECISION)
{
n -= PART_PRECISION;
num.low = num.high;
num.high = sign_mask;
}
if (n)
{
num.low = (num.low >> n) | (num.high << (PART_PRECISION - n));
num.high = (num.high >> n) | (sign_mask << (PART_PRECISION - n));
}
}
num = num_trim (num, precision);
num.overflow = false;
return num;
}
/* Shift NUM, of width PRECISION, left by N bits. */
static cpp_num
num_lshift (cpp_num num, size_t precision, size_t n)
{
if (n >= precision)
{
num.overflow = !num.unsignedp && !num_zerop (num);
num.high = num.low = 0;
}
else
{
cpp_num orig, maybe_orig;
size_t m = n;
orig = num;
if (m >= PART_PRECISION)
{
m -= PART_PRECISION;
num.high = num.low;
num.low = 0;
}
if (m)
{
num.high = (num.high << m) | (num.low >> (PART_PRECISION - m));
num.low <<= m;
}
num = num_trim (num, precision);
if (num.unsignedp)
num.overflow = false;
else
{
maybe_orig = num_rshift (num, precision, n);
num.overflow = !num_eq (orig, maybe_orig);
}
}
return num;
}
/* The four unary operators: +, -, ! and ~. */
static cpp_num
num_unary_op (cpp_reader *pfile, cpp_num num, enum cpp_ttype op)
{
switch (op)
{
case CPP_UPLUS:
if (CPP_WTRADITIONAL (pfile) && !pfile->state.skip_eval)
diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * diagnostic.h (diagnostic_override_option_index): New macro to set a diagnostic's option_index. * c-tree.h (c_cpp_error): Add warning reason argument. * opts.c (_warning_as_error_callback): New. (register_warning_as_error_callback): Store callback for warnings enabled via enable_warning_as_error. (enable_warning_as_error): Call callback, minor code tidy. * opts.h (register_warning_as_error_callback): Declare. * c-opts.c (warning_as_error_callback): New, set cpp_opts flag in response to -Werror=. (c_common_init_options): Register warning_as_error_callback in opts.c. * common.opt: Add -Wno-cpp option. * c-common.c (struct reason_option_codes_t): Map cpp warning reason codes to gcc option indexes. * (c_option_controlling_cpp_error): New function, lookup the gcc option index for a cpp warning reason code. * (c_cpp_error): Add warning reason argument, call c_option_controlling_cpp_error for diagnostic_override_option_index. * doc/invoke.texi: Document -Wno-cpp. * cpp.c (cb_cpp_error): Add warning reason argument, set a value for diagnostic_override_option_index if CPP_W_WARNING_DIRECTIVE. * directives.c (do_diagnostic): Add warning reason argument, call appropriate error reporting function for code. (directive_diagnostics): Call specific warning functions with warning reason where appropriate. (do_error, do_warning, do_pragma_dependency): Add warning reason argument to do_diagnostic calls. * macro.c (_cpp_warn_if_unused_macro, enter_macro_context, _cpp_create_definition): Call specific warning functions with warning reason where appropriate. * Makefile.in: Add new diagnostic functions to gettext translations. * include/cpplib.h (struct cpp_callbacks): Add warning reason code to error callback. (CPP_DL_WARNING, CPP_DL_WARNING_SYSHDR, CPP_DL_PEDWARN, CPP_DL_ERROR, CPP_DL_ICE, CPP_DL_NOTE, CPP_DL_FATAL): Replace macros with enums. (CPP_W_NONE, CPP_W_DEPRECATED, CPP_W_COMMENTS, CPP_W_MISSING_INCLUDE_DIRS, CPP_W_TRIGRAPHS, CPP_W_MULTICHAR, CPP_W_TRADITIONAL, CPP_W_LONG_LONG, CPP_W_ENDIF_LABELS, CPP_W_NUM_SIGN_CHANGE, CPP_W_VARIADIC_MACROS, CPP_W_BUILTIN_MACRO_REDEFINED, CPP_W_DOLLARS, CPP_W_UNDEF, CPP_W_UNUSED_MACROS, CPP_W_CXX_OPERATOR_NAMES, CPP_W_NORMALIZE, CPP_W_INVALID_PCH, CPP_W_WARNING_DIRECTIVE): New enums for cpp warning reason codes. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * pch.c (cpp_valid_state): Call specific warning functions with warning reason where appropriate. * errors.c (cpp_diagnostic, cpp_diagnostic_with_line): New central diagnostic handlers. (cpp_warning, cpp_pedwarning, cpp_warning_syshdr, cpp_warning_with_line, cpp_pedwarning_with_line, cpp_warning_with_line_syshdr): New specific error reporting functions. * expr.c (cpp_classify_number, eval_token, num_unary_op): Call specific warning functions with warning reason where appropriate. * lex.c (_cpp_process_line_notes, _cpp_skip_block_comment, warn_about_normalization, lex_identifier_intern, lex_identifier, _cpp_lex_direct): Ditto. * charset.c (_cpp_valid_ucn, convert_hex, convert_escape, narrow_str_to_charconst): Ditto. * gcc.dg/cpp/warn-undef-2.c: New. * gcc.dg/cpp/warn-traditional-2.c: New. * gcc.dg/cpp/warn-comments-2.c: New. * gcc.dg/cpp/warning-directive-1.c: New. * gcc.dg/cpp/warn-long-long.c: New. * gcc.dg/cpp/warn-traditional.c: New. * gcc.dg/cpp/warn-variadic-2.c: New. * gcc.dg/cpp/warn-undef.c: New. * gcc.dg/cpp/warn-normalized-1.c: New. * gcc.dg/cpp/warning-directive-2.c: New. * gcc.dg/cpp/warn-long-long-2.c: New. * gcc.dg/cpp/warn-variadic.c: New. * gcc.dg/cpp/warn-normalized-2.c: New. * gcc.dg/cpp/warning-directive-3.c: New. * gcc.dg/cpp/warn-deprecated-2.c: New. * gcc.dg/cpp/warn-trigraphs-1.c: New. * gcc.dg/cpp/warn-multichar-2.c: New. * gcc.dg/cpp/warn-normalized-3.c: New. * gcc.dg/cpp/warning-directive-4.c: New. * gcc.dg/cpp/warn-unused-macros.c: New. * gcc.dg/cpp/warn-trigraphs-2.c: New. * gcc.dg/cpp/warn-cxx-compat-2.c: New. * gcc.dg/cpp/warn-cxx-compat.c: New. * gcc.dg/cpp/warn-redefined.c: New. * gcc.dg/cpp/warn-trigraphs-3.c: New. * gcc.dg/cpp/warn-unused-macros-2.c: New. * gcc.dg/cpp/warn-deprecated.c: New. * gcc.dg/cpp/warn-trigraphs-4.c: New. * gcc.dg/cpp/warn-redefined-2.c: New. * gcc.dg/cpp/warn-comments.c: New. * gcc.dg/cpp/warn-multichar.c: New. * g++.dg/cpp/warning-directive-1.C: New. * g++.dg/cpp/warning-directive-2.C: New. * g++.dg/cpp/warning-directive-3.C: New. * g++.dg/cpp/warning-directive-4.C: New. * gfortran.dg/warning-directive-1.F90: New. * gfortran.dg/warning-directive-3.F90: New. * gfortran.dg/warning-directive-2.F90: New. * gfortran.dg/warning-directive-4.F90: New. From-SVN: r158079
2010-04-07 19:18:10 +02:00
cpp_warning (pfile, CPP_W_TRADITIONAL,
"traditional C rejects the unary plus operator");
num.overflow = false;
break;
case CPP_UMINUS:
num = num_negate (num, CPP_OPTION (pfile, precision));
break;
case CPP_COMPL:
num.high = ~num.high;
num.low = ~num.low;
num = num_trim (num, CPP_OPTION (pfile, precision));
num.overflow = false;
break;
default: /* case CPP_NOT: */
num.low = num_zerop (num);
num.high = 0;
num.overflow = false;
num.unsignedp = false;
break;
}
return num;
}
/* The various binary operators. */
static cpp_num
num_binary_op (cpp_reader *pfile, cpp_num lhs, cpp_num rhs, enum cpp_ttype op)
{
cpp_num result;
size_t precision = CPP_OPTION (pfile, precision);
size_t n;
switch (op)
{
/* Shifts. */
case CPP_LSHIFT:
case CPP_RSHIFT:
if (!rhs.unsignedp && !num_positive (rhs, precision))
{
/* A negative shift is a positive shift the other way. */
if (op == CPP_LSHIFT)
op = CPP_RSHIFT;
else
op = CPP_LSHIFT;
rhs = num_negate (rhs, precision);
}
if (rhs.high)
n = ~0; /* Maximal. */
else
n = rhs.low;
if (op == CPP_LSHIFT)
lhs = num_lshift (lhs, precision, n);
else
lhs = num_rshift (lhs, precision, n);
break;
/* Arithmetic. */
case CPP_MINUS:
result.low = lhs.low - rhs.low;
result.high = lhs.high - rhs.high;
if (result.low > lhs.low)
result.high--;
result.unsignedp = lhs.unsignedp || rhs.unsignedp;
result.overflow = false;
result = num_trim (result, precision);
if (!result.unsignedp)
{
bool lhsp = num_positive (lhs, precision);
result.overflow = (lhsp != num_positive (rhs, precision)
&& lhsp != num_positive (result, precision));
}
return result;
case CPP_PLUS:
result.low = lhs.low + rhs.low;
result.high = lhs.high + rhs.high;
if (result.low < lhs.low)
result.high++;
result.unsignedp = lhs.unsignedp || rhs.unsignedp;
result.overflow = false;
result = num_trim (result, precision);
if (!result.unsignedp)
{
bool lhsp = num_positive (lhs, precision);
result.overflow = (lhsp == num_positive (rhs, precision)
&& lhsp != num_positive (result, precision));
}
return result;
/* Comma. */
default: /* case CPP_COMMA: */
if (CPP_PEDANTIC (pfile) && (!CPP_OPTION (pfile, c99)
|| !pfile->state.skip_eval))
cpp_pedwarning (pfile, CPP_W_PEDANTIC,
"comma operator in operand of #if");
lhs = rhs;
break;
}
return lhs;
}
/* Multiplies two unsigned cpp_num_parts to give a cpp_num. This
cannot overflow. */
static cpp_num
num_part_mul (cpp_num_part lhs, cpp_num_part rhs)
{
cpp_num result;
cpp_num_part middle[2], temp;
result.low = LOW_PART (lhs) * LOW_PART (rhs);
result.high = HIGH_PART (lhs) * HIGH_PART (rhs);
middle[0] = LOW_PART (lhs) * HIGH_PART (rhs);
middle[1] = HIGH_PART (lhs) * LOW_PART (rhs);
temp = result.low;
result.low += LOW_PART (middle[0]) << (PART_PRECISION / 2);
if (result.low < temp)
result.high++;
temp = result.low;
result.low += LOW_PART (middle[1]) << (PART_PRECISION / 2);
if (result.low < temp)
result.high++;
result.high += HIGH_PART (middle[0]);
result.high += HIGH_PART (middle[1]);
result.unsignedp = true;
result.overflow = false;
return result;
}
/* Multiply two preprocessing numbers. */
static cpp_num
num_mul (cpp_reader *pfile, cpp_num lhs, cpp_num rhs)
{
cpp_num result, temp;
bool unsignedp = lhs.unsignedp || rhs.unsignedp;
bool overflow, negate = false;
size_t precision = CPP_OPTION (pfile, precision);
/* Prepare for unsigned multiplication. */
if (!unsignedp)
{
if (!num_positive (lhs, precision))
negate = !negate, lhs = num_negate (lhs, precision);
if (!num_positive (rhs, precision))
negate = !negate, rhs = num_negate (rhs, precision);
}
overflow = lhs.high && rhs.high;
result = num_part_mul (lhs.low, rhs.low);
temp = num_part_mul (lhs.high, rhs.low);
result.high += temp.low;
if (temp.high)
overflow = true;
temp = num_part_mul (lhs.low, rhs.high);
result.high += temp.low;
if (temp.high)
overflow = true;
temp.low = result.low, temp.high = result.high;
result = num_trim (result, precision);
if (!num_eq (result, temp))
overflow = true;
if (negate)
result = num_negate (result, precision);
if (unsignedp)
result.overflow = false;
else
result.overflow = overflow || (num_positive (result, precision) ^ !negate
&& !num_zerop (result));
result.unsignedp = unsignedp;
return result;
}
/* Divide two preprocessing numbers, LHS and RHS, returning the answer
or the remainder depending upon OP. LOCATION is the source location
of this operator (for diagnostics). */
static cpp_num
num_div_op (cpp_reader *pfile, cpp_num lhs, cpp_num rhs, enum cpp_ttype op,
source_location location)
{
cpp_num result, sub;
cpp_num_part mask;
bool unsignedp = lhs.unsignedp || rhs.unsignedp;
bool negate = false, lhs_neg = false;
size_t i, precision = CPP_OPTION (pfile, precision);
/* Prepare for unsigned division. */
if (!unsignedp)
{
if (!num_positive (lhs, precision))
negate = !negate, lhs_neg = true, lhs = num_negate (lhs, precision);
if (!num_positive (rhs, precision))
negate = !negate, rhs = num_negate (rhs, precision);
}
/* Find the high bit. */
if (rhs.high)
{
i = precision - 1;
mask = (cpp_num_part) 1 << (i - PART_PRECISION);
for (; ; i--, mask >>= 1)
if (rhs.high & mask)
break;
}
else if (rhs.low)
{
if (precision > PART_PRECISION)
i = precision - PART_PRECISION - 1;
else
i = precision - 1;
mask = (cpp_num_part) 1 << i;
for (; ; i--, mask >>= 1)
if (rhs.low & mask)
break;
}
else
{
if (!pfile->state.skip_eval)
cpp_error_with_line (pfile, CPP_DL_ERROR, location, 0,
"division by zero in #if");
return lhs;
}
/* First nonzero bit of RHS is bit I. Do naive division by
shifting the RHS fully left, and subtracting from LHS if LHS is
at least as big, and then repeating but with one less shift.
This is not very efficient, but is easy to understand. */
rhs.unsignedp = true;
lhs.unsignedp = true;
i = precision - i - 1;
sub = num_lshift (rhs, precision, i);
result.high = result.low = 0;
for (;;)
{
if (num_greater_eq (lhs, sub, precision))
{
lhs = num_binary_op (pfile, lhs, sub, CPP_MINUS);
if (i >= PART_PRECISION)
result.high |= (cpp_num_part) 1 << (i - PART_PRECISION);
else
result.low |= (cpp_num_part) 1 << i;
}
if (i-- == 0)
break;
sub.low = (sub.low >> 1) | (sub.high << (PART_PRECISION - 1));
sub.high >>= 1;
}
/* We divide so that the remainder has the sign of the LHS. */
if (op == CPP_DIV)
{
result.unsignedp = unsignedp;
result.overflow = false;
if (!unsignedp)
{
if (negate)
result = num_negate (result, precision);
result.overflow = (num_positive (result, precision) ^ !negate
&& !num_zerop (result));
}
return result;
}
/* CPP_MOD. */
lhs.unsignedp = unsignedp;
lhs.overflow = false;
if (lhs_neg)
lhs = num_negate (lhs, precision);
return lhs;
}
Implement SD-6: SG10 Feature Test Recommendations 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * internal.h (lexer_state, spec_nodes): Add in__has_include__. * directives.c: Support __has_include__ builtin. * expr.c (parse_has_include): New function to parse __has_include__ builtin; (eval_token()): Use it. * files.c (_cpp_has_header()): New funtion to look for header; (open_file_failed()): Not an error to not find a header file for __has_include__. * identifiers.c (_cpp_init_hashtable()): Add entry for __has_include__. * pch.c (cpp_read_state): Lookup __has_include__. * traditional.c (enum ls, _cpp_scan_out_logical_line()): Walk through __has_include__ statements. 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * c-cppbuiltin.c (c_cpp_builtins()): Define language feature macros and the __has_header macro. 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * include/bits/basic_string.h: Add __cpp_lib feature test macro. * include/bits/stl_algobase.h: Ditto. * include/bits/stl_function.h: Ditto. * include/bits/unique_ptr.h: Ditto. * include/std/chrono: Ditto. * include/std/complex: Ditto. * include/std/iomanip: Ditto. * include/std/shared_mutex: Ditto. * include/std/tuple: Ditto. * include/std/type_traits: Ditto. * include/std/utility: Ditto. * testsuite/experimental/feat-cxx14.cc: New. * testsuite/experimental/feat-lib-fund.cc: New. * testsuite/20_util/declval/requirements/1_neg.cc: Adjust. * testsuite/20_util/duration/literals/range.cc: Adjust. * testsuite/20_util/duration/requirements/typedefs_neg1.cc: Adjust. * testsuite/20_util/duration/requirements/typedefs_neg2.cc: Adjust. * testsuite/20_util/duration/requirements/typedefs_neg3.cc: Adjust. * testsuite/20_util/make_signed/requirements/typedefs_neg.cc: Adjust. * testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc: Adjust. * testsuite/23_containers/array/tuple_interface/get_neg.cc: Adjust. * testsuite/23_containers/array/tuple_interface/tuple_element_neg.cc: Adjust. 2014-10-01 Edward Smith-Rowland <3dw4rd@verizon.net> Implement SD-6: SG10 Feature Test Recommendations * g++.dg/cpp1y/feat-cxx11-neg.C: New. * g++.dg/cpp1y/feat-cxx11.C: New. * g++.dg/cpp1y/feat-cxx14.C: New. * g++.dg/cpp1y/feat-cxx98.C: New. * g++.dg/cpp1y/feat-cxx98-neg.C: New. * g++.dg/cpp1y/phoobhar.h: New. * g++.dg/cpp1y/testinc/phoobhar.h: New. From-SVN: r215752
2014-10-01 13:49:23 +02:00
/* Handle meeting "__has_include__" in a preprocessor expression. */
static cpp_num
parse_has_include (cpp_reader *pfile, enum include_type type)
{
cpp_num result;
bool paren = false;
cpp_hashnode *node = 0;
const cpp_token *token;
bool bracket = false;
char *fname = 0;
result.unsignedp = false;
result.high = 0;
result.overflow = false;
result.low = 0;
pfile->state.in__has_include__++;
token = cpp_get_token (pfile);
if (token->type == CPP_OPEN_PAREN)
{
paren = true;
token = cpp_get_token (pfile);
}
if (token->type == CPP_STRING || token->type == CPP_HEADER_NAME)
{
if (token->type == CPP_HEADER_NAME)
bracket = true;
fname = XNEWVEC (char, token->val.str.len - 1);
memcpy (fname, token->val.str.text + 1, token->val.str.len - 2);
fname[token->val.str.len - 2] = '\0';
node = token->val.node.node;
}
else if (token->type == CPP_LESS)
{
bracket = true;
fname = _cpp_bracket_include (pfile);
}
else
cpp_error (pfile, CPP_DL_ERROR,
"operator \"__has_include__\" requires a header string");
if (fname)
{
int angle_brackets = (bracket ? 1 : 0);
if (_cpp_has_header (pfile, fname, angle_brackets, type))
result.low = 1;
else
result.low = 0;
XDELETEVEC (fname);
}
if (paren && cpp_get_token (pfile)->type != CPP_CLOSE_PAREN)
cpp_error (pfile, CPP_DL_ERROR,
"missing ')' after \"__has_include__\"");
/* A possible controlling macro of the form #if !__has_include__ ().
_cpp_parse_expr checks there was no other junk on the line. */
if (node)
pfile->mi_ind_cmacro = node;
pfile->state.in__has_include__--;
return result;
}