This implements __VA_OPT__, a new preprocessor feature added in C++2A.
The paper can be found here:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0306r4.html
gcc/ChangeLog
* doc/cpp.texi (Variadic Macros): Document __VA_OPT__.
gcc/testsuite/ChangeLog
* c-c++-common/cpp/va-opt-pedantic.c: New file.
* c-c++-common/cpp/va-opt.c: New file.
* c-c++-common/cpp/va-opt-error.c: New file.
libcpp/ChangeLog
* pch.c (cpp_read_state): Set n__VA_OPT__.
* macro.c (vaopt_state): New class.
(_cpp_arguments_ok): Check va_opt flag.
(replace_args, create_iso_definition): Use vaopt_state.
* lex.c (lex_identifier_intern): Possibly issue errors for
__VA_OPT__.
(lex_identifier): Likewise.
(maybe_va_opt_error): New function.
* internal.h (struct lexer_state) <va_args_ok>: Update comment.
(struct spec_nodes) <n__VA_OPT__>: New field.
* init.c (struct lang_flags) <va_opt>: New field.
(lang_defaults): Add entries for C++2A. Update all entries for
va_opt.
(cpp_set_lang): Initialize va_opt.
* include/cpplib.h (struct cpp_options) <va_opt>: New field.
* identifiers.c (_cpp_init_hashtable): Initialize n__VA_OPT__.
From-SVN: r254707
libcpp:
2014-11-10 Edward Smith-Rowland <3dw4rd@verizon.net>
* include/cpplib.h (cpp_callbacks): Add has_attribute.
* internal.h (lexer_state): Add in__has_attribute__.
* directives.c (lex_macro_node): Prevent use of __has_attribute__
as a macro.
* expr.c (parse_has_attribute): New function; (eval_token): Look for
__has_attribute__ and route to parse_has_attribute.
* identifiers.c (_cpp_init_hashtable): Initialize n__has_attribute__.
* pch.c (cpp_read_state): Initialize n__has_attribute__.
* traditional.c (enum ls): Add ls_has_attribute, ls_has_attribute_close;
(_cpp_scan_out_logical_line): Attend to __has_attribute__.
gcc/c-family:
2014-11-10 Edward Smith-Rowland <3dw4rd@verizon.net>
* c-cppbuiltin.c (__has_attribute, __has_cpp_attribute): New macros;
(__cpp_rtti, __cpp_exceptions): New macros for C++98;
(__cpp_range_based_for, __cpp_initializer_lists,
__cpp_delegating_constructors, __cpp_nsdmi,
__cpp_inheriting_constructors, __cpp_ref_qualifiers): New macros
for C++11; (__cpp_attribute_deprecated): Remove in favor of
__has_cpp_attribute.
* c-lex.c (cb_has_attribute): New callback CPP function;
(init_c_lex): Set has_attribute callback.
gcc/testsuite:
2014-11-10 Edward Smith-Rowland <3dw4rd@verizon.net>
* g++.dg/cpp1y/feat-cxx11.C: Test new feature macros for C++98
and C++11; Test existence of __has_cpp_attribute; Test C++11
attributes.
* g++.dg/cpp1y/feat-cxx11-neg.C: Ditto.
* g++.dg/cpp1y/feat-cxx14.C: Ditto and test for C++14 attributes.
* g++.dg/cpp1y/feat-cxx98.C: Test new feature macros for C++98.
* g++.dg/cpp1y/feat-cxx98-neg.C: Ditto.
* g++.dg/cpp1y/feat-neg.C: Test that __cpp_rtti, _cpp_exceptions
will be undefined for -fno-rtti -fno-exceptions.
From-SVN: r217292
PR middle-end/56461
* files.c (_cpp_save_file_entries): Free result at the end.
* pch.c (cpp_string_free): New function.
(cpp_save_state): Use it in htab_create call.
(cpp_write_pch_deps): Free ss->defs. Destroy ss->definedhash.
From-SVN: r196394
Change "if (E) free (E);" to "free (E);" everywhere except in the
libgo/, intl/, zlib/ and classpath/ directories.
Also transform equivalent variants like
"if (E != NULL) free (E);" and allow an extra cast on the
argument to free. Otherwise, the tested and freed "E"
expressions must be identical, modulo white space.
From-SVN: r172785
2010-09-29 Kai Tietz <kai.tietz@onevision.com>
PR preprocessor/45362
* directives.c (cpp_pop_definition): Make static.
(do_pragma_push_macro): Reworked to store text
definition.
(do_pragma_pop_macro): Add free text definition.
(cpp_push_definition): Removed.
* include/cpplib.h (cpp_push_definition): Removed.
(cpp_pop_definition): Likewise.
* internal.h (def_pragma_macro): Remove member 'value'
and add new members 'definition', 'line',
'syshdr', 'sued' and 'is_undef'.
* pch.c (_cpp_restore_pushed_macros): Rework to work
on text definition and store additional macro flags.
(_cpp_save_pushed_macros): Likewise.
From-SVN: r164729
gcc/ChangeLog:
PR target/37033
* dwarf2out.c (saved_do_cfi_asm): New.
(dwarf2out_do_frame): Take it into account.
(dwarf2out_d_cfi_asm): Likewise. Set it when appropriate.
libcpp/ChangeLog:
PR target/37033
* pch.c (cpp_valid_state): Improve message for poisoned symbols.
Allow for differences in __GCC_HAVE_DWARF2_CFI_ASM.
From-SVN: r142652
* 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
2004-10-08 Andrew Pinski <pinskia@physics.uc.edu>
* pch.c (cpp_write_pch_state): Remove variable z as it is not
used.
(cpp_read_state): Remove unused variables, m, d and mac_count.
From-SVN: r88748
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
