Add -std=c2x, -std=gnu2x, -Wc11-c2x-compat, C2X _Static_assert support.
Now new features are starting to be added to a C2X draft (in the C2x branch of the C standard git repository, no public WG14 document yet), it's time to add -std=c2x and associated options to GCC for use in enabling C2X features. This patch adds the expected set of options: -std=c2x, -std=gnu2x, -Wc11-c2x-compat. A first C2X feature is added (the only one so far in the repository that's obviously relevant to GCC): support (as in C++) for the string constant to be omitted in _Static_assert. This feature is duly also supported as an extension in earlier standard modes (diagnosed with -pedantic, unless -Wno-c11-c2x-compat is given, or with -Wc11-c2x-compat even in C2X mode). Bootstrapped with no regressions on x86_64-pc-linux-gnu. gcc/ * doc/cpp.texi (__STDC_VERSION__): Document C2X handling. * doc/invoke.texi (-std=c2x, -std=gnu2x): Document new options. * doc/standards.texi (C Language): Document C2X. * dwarf2out.c (highest_c_language), config/rl78/rl78.c (rl78_option_override): Handle "GNU C2X" language name. gcc/c/ * c-errors.c (pedwarn_c11): New function. * c-parser.c (disable_extension_diagnostics): Save warn_c11_c2x_compat and set it to 0. (restore_extension_diagnostics): Restore warn_c11_c2x_compat. (c_parser_static_assert_declaration_no_semi): Handle _Static_assert without string constant. * c-tree.h (pedwarn_c11): New prototype. gcc/c-family/ * c-common.c (flag_isoc2x): New variable. * c-common.h (clk_c): Update comment to reference C2X. (flag_isoc99, flag_isoc11): Update comments to reference future standard versions in general. (flag_isoc2x): Declare. * c-opts.c (set_std_c2x): New function. (c_common_handle_option): Handle -std=c2x and -std=gnu2x. (set_std_c89, set_std_c99, set_std_c11, set_std_c17): Set flag_isoc2x to 0. * c.opt (Wc11-c2x-compat, std=c2x, std=gnu2x): New options. gcc/testsuite/ * gcc.dg/c11-static-assert-7.c, gcc.dg/c11-static-assert-8.c, gcc.dg/c11-static-assert-9.c, gcc.dg/c2x-static-assert-1.c, gcc.dg/c2x-static-assert-2.c, gcc.dg/c99-static-assert-2.c, gcc.dg/gnu2x-static-assert-1.c: New tests. * gcc.dg/missing-symbol-3.c: Update expected fix-it text. libcpp/ * include/cpplib.h (enum c_lang): Add CLK_GNUC2X and CLK_STDC2X. * init.c (lang_defaults): Add GNUC2X and STDC2X entries. (cpp_init_builtins): Define __STDC_VERSION__ to 202000L for C2X. From-SVN: r265251
This commit is contained in:
Joseph Myers
Joseph Myers
parent
7a8a92c448
commit
9f936c8613
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@ -1,3 +1,11 @@
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2018-10-17 Joseph Myers <joseph@codesourcery.com>
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* doc/cpp.texi (__STDC_VERSION__): Document C2X handling.
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* doc/invoke.texi (-std=c2x, -std=gnu2x): Document new options.
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* doc/standards.texi (C Language): Document C2X.
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* dwarf2out.c (highest_c_language), config/rl78/rl78.c
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(rl78_option_override): Handle "GNU C2X" language name.
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2018-10-17 Joseph Myers <joseph@codesourcery.com>
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* doc/invoke.texi (-std=c17), doc/standards.texi (C Language):
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@ -1,3 +1,16 @@
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2018-10-17 Joseph Myers <joseph@codesourcery.com>
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* c-common.c (flag_isoc2x): New variable.
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* c-common.h (clk_c): Update comment to reference C2X.
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(flag_isoc99, flag_isoc11): Update comments to reference future
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standard versions in general.
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(flag_isoc2x): Declare.
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* c-opts.c (set_std_c2x): New function.
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(c_common_handle_option): Handle -std=c2x and -std=gnu2x.
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(set_std_c89, set_std_c99, set_std_c11, set_std_c17): Set
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flag_isoc2x to 0.
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* c.opt (Wc11-c2x-compat, std=c2x, std=gnu2x): New options.
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2018-10-17 Joseph Myers <joseph@codesourcery.com>
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* c.opt (std=c17, std=c18, std=gnu17, std=gnu18, std=iso9899:2017)
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@ -214,6 +214,10 @@ int flag_isoc99;
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int flag_isoc11;
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/* Nonzero means use the ISO C2X dialect of C. */
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int flag_isoc2x;
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/* Nonzero means that we have builtin functions, and main is an int. */
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int flag_hosted = 1;
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@ -498,7 +498,7 @@ extern GTY(()) tree c_global_trees[CTI_MAX];
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enum c_language_kind
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{
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clk_c = 0, /* C90, C94, C99 or C11 */
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clk_c = 0, /* C90, C94, C99, C11 or C2X */
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clk_objc = 1, /* clk_c with ObjC features. */
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clk_cxx = 2, /* ANSI/ISO C++ */
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clk_objcxx = 3 /* clk_cxx with ObjC features. */
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@ -635,14 +635,18 @@ extern int flag_cond_mismatch;
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extern int flag_isoc94;
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/* Nonzero means use the ISO C99 (or C11) dialect of C. */
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/* Nonzero means use the ISO C99 (or later) dialect of C. */
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extern int flag_isoc99;
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/* Nonzero means use the ISO C11 dialect of C. */
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/* Nonzero means use the ISO C11 (or later) dialect of C. */
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extern int flag_isoc11;
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/* Nonzero means use the ISO C2X dialect of C. */
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extern int flag_isoc2x;
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/* Nonzero means that we have builtin functions, and main is an int. */
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extern int flag_hosted;
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@ -117,6 +117,7 @@ static void set_std_c89 (int, int);
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static void set_std_c99 (int);
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static void set_std_c11 (int);
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static void set_std_c17 (int);
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static void set_std_c2x (int);
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static void check_deps_environment_vars (void);
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static void handle_deferred_opts (void);
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static void sanitize_cpp_opts (void);
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@ -679,6 +680,16 @@ c_common_handle_option (size_t scode, const char *arg, HOST_WIDE_INT value,
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set_std_c17 (false /* ISO */);
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break;
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case OPT_std_c2x:
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if (!preprocessing_asm_p)
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set_std_c2x (true /* ISO */);
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break;
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case OPT_std_gnu2x:
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if (!preprocessing_asm_p)
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set_std_c2x (false /* ISO */);
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break;
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case OPT_trigraphs:
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cpp_opts->trigraphs = 1;
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break;
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@ -1554,6 +1565,7 @@ set_std_c89 (int c94, int iso)
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flag_isoc94 = c94;
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flag_isoc99 = 0;
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flag_isoc11 = 0;
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flag_isoc2x = 0;
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lang_hooks.name = "GNU C89";
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}
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@ -1565,6 +1577,7 @@ set_std_c99 (int iso)
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flag_no_asm = iso;
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flag_no_nonansi_builtin = iso;
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flag_iso = iso;
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flag_isoc2x = 0;
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flag_isoc11 = 0;
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flag_isoc99 = 1;
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flag_isoc94 = 1;
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@ -1579,6 +1592,7 @@ set_std_c11 (int iso)
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flag_no_asm = iso;
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flag_no_nonansi_builtin = iso;
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flag_iso = iso;
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flag_isoc2x = 0;
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flag_isoc11 = 1;
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flag_isoc99 = 1;
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flag_isoc94 = 1;
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@ -1593,12 +1607,28 @@ set_std_c17 (int iso)
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flag_no_asm = iso;
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flag_no_nonansi_builtin = iso;
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flag_iso = iso;
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flag_isoc2x = 0;
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flag_isoc11 = 1;
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flag_isoc99 = 1;
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flag_isoc94 = 1;
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lang_hooks.name = "GNU C17";
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}
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/* Set the C 2X standard (without GNU extensions if ISO). */
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static void
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set_std_c2x (int iso)
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{
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cpp_set_lang (parse_in, iso ? CLK_STDC2X: CLK_GNUC2X);
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flag_no_asm = iso;
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flag_no_nonansi_builtin = iso;
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flag_iso = iso;
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flag_isoc2x = 1;
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flag_isoc11 = 1;
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flag_isoc99 = 1;
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flag_isoc94 = 1;
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lang_hooks.name = "GNU C2X";
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}
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/* Set the C++ 98 standard (without GNU extensions if ISO). */
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static void
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@ -366,6 +366,10 @@ Wbuiltin-macro-redefined
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C ObjC C++ ObjC++ CPP(warn_builtin_macro_redefined) CppReason(CPP_W_BUILTIN_MACRO_REDEFINED) Var(cpp_warn_builtin_macro_redefined) Init(1) Warning
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Warn when a built-in preprocessor macro is undefined or redefined.
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Wc11-c2x-compat
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C ObjC Var(warn_c11_c2x_compat) Init(-1) Warning
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Warn about features not present in ISO C11, but present in ISO C2X.
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Wc90-c99-compat
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C ObjC CPP(cpp_warn_c90_c99_compat) CppReason(CPP_W_C90_C99_COMPAT) Var(warn_c90_c99_compat) Init(-1) Warning
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Warn about features not present in ISO C90, but present in ISO C99.
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@ -1998,6 +2002,10 @@ std=c18
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C ObjC Alias(std=c17)
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Conform to the ISO 2017 C standard (published in 2018).
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std=c2x
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C ObjC
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Conform to the ISO 202X C standard draft (experimental and incomplete support).
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std=c89
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C ObjC Alias(std=c90)
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Conform to the ISO 1990 C standard.
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@ -2068,6 +2076,10 @@ std=gnu18
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C ObjC Alias(std=gnu17)
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Conform to the ISO 2017 C standard (published in 2018) with GNU extensions.
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std=gnu2x
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C ObjC
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Conform to the ISO 202X C standard draft with GNU extensions (experimental and incomplete support).
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std=gnu89
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C ObjC Alias(std=gnu90)
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Conform to the ISO 1990 C standard with GNU extensions.
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@ -1,3 +1,13 @@
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2018-10-17 Joseph Myers <joseph@codesourcery.com>
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* c-errors.c (pedwarn_c11): New function.
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* c-parser.c (disable_extension_diagnostics): Save
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warn_c11_c2x_compat and set it to 0.
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(restore_extension_diagnostics): Restore warn_c11_c2x_compat.
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(c_parser_static_assert_declaration_no_semi): Handle
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_Static_assert without string constant.
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* c-tree.h (pedwarn_c11): New prototype.
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2018-10-17 David Malcolm <dmalcolm@redhat.com>
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* Make-lang.in (selftest-c): New.
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@ -25,6 +25,45 @@ along with GCC; see the file COPYING3. If not see
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#include "c-tree.h"
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#include "opts.h"
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/* Issue an ISO C11 pedantic warning MSGID if -pedantic outside C2X mode,
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otherwise issue warning MSGID if -Wc11-c2X-compat is specified.
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This function is supposed to be used for matters that are allowed in
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ISO C2X but not supported in ISO C11, thus we explicitly don't pedwarn
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when C2X is specified. */
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bool
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pedwarn_c11 (location_t location, int opt, const char *gmsgid, ...)
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{
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diagnostic_info diagnostic;
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va_list ap;
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bool warned = false;
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rich_location richloc (line_table, location);
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va_start (ap, gmsgid);
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/* If desired, issue the C11/C2X compat warning, which is more specific
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than -pedantic. */
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if (warn_c11_c2x_compat > 0)
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{
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diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc,
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(pedantic && !flag_isoc2x)
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? DK_PEDWARN : DK_WARNING);
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diagnostic.option_index = OPT_Wc11_c2x_compat;
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warned = diagnostic_report_diagnostic (global_dc, &diagnostic);
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}
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/* -Wno-c11-c2x-compat suppresses even the pedwarns. */
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else if (warn_c11_c2x_compat == 0)
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;
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/* For -pedantic outside C2X, issue a pedwarn. */
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else if (pedantic && !flag_isoc2x)
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{
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diagnostic_set_info (&diagnostic, gmsgid, &ap, &richloc, DK_PEDWARN);
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diagnostic.option_index = opt;
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warned = diagnostic_report_diagnostic (global_dc, &diagnostic);
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}
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va_end (ap);
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return warned;
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}
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/* Issue an ISO C99 pedantic warning MSGID if -pedantic outside C11 mode,
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otherwise issue warning MSGID if -Wc99-c11-compat is specified.
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This function is supposed to be used for matters that are allowed in
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@ -1327,6 +1327,9 @@ disable_extension_diagnostics (void)
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/* Similarly for warn_c99_c11_compat. */
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| ((warn_c99_c11_compat == 1) << 9)
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| ((warn_c99_c11_compat == -1) << 10)
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/* Similarly for warn_c11_c2x_compat. */
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| ((warn_c11_c2x_compat == 1) << 11)
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| ((warn_c11_c2x_compat == -1) << 12)
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);
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cpp_opts->cpp_pedantic = pedantic = 0;
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warn_pointer_arith = 0;
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@ -1337,6 +1340,7 @@ disable_extension_diagnostics (void)
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warn_overlength_strings = 0;
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warn_c90_c99_compat = 0;
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warn_c99_c11_compat = 0;
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warn_c11_c2x_compat = 0;
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return ret;
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}
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@ -1356,6 +1360,7 @@ restore_extension_diagnostics (int flags)
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/* See above for why is this needed. */
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warn_c90_c99_compat = (flags >> 7) & 1 ? 1 : ((flags >> 8) & 1 ? -1 : 0);
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warn_c99_c11_compat = (flags >> 9) & 1 ? 1 : ((flags >> 10) & 1 ? -1 : 0);
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warn_c11_c2x_compat = (flags >> 11) & 1 ? 1 : ((flags >> 12) & 1 ? -1 : 0);
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}
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/* Helper data structure for parsing #pragma acc routine. */
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@ -2404,6 +2409,10 @@ c_parser_static_assert_declaration (c_parser *parser)
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static_assert-declaration-no-semi:
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_Static_assert ( constant-expression , string-literal )
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C2X:
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static_assert-declaration-no-semi:
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_Static_assert ( constant-expression )
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*/
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static void
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@ -2411,7 +2420,7 @@ c_parser_static_assert_declaration_no_semi (c_parser *parser)
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{
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location_t assert_loc, value_loc;
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tree value;
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tree string;
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tree string = NULL_TREE;
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gcc_assert (c_parser_next_token_is_keyword (parser, RID_STATIC_ASSERT));
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assert_loc = c_parser_peek_token (parser)->location;
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@ -2429,27 +2438,33 @@ c_parser_static_assert_declaration_no_semi (c_parser *parser)
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value = c_parser_expr_no_commas (parser, NULL).value;
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value_loc = EXPR_LOC_OR_LOC (value, value_tok_loc);
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parser->lex_untranslated_string = true;
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if (!c_parser_require (parser, CPP_COMMA, "expected %<,%>"))
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if (c_parser_next_token_is (parser, CPP_COMMA))
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{
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parser->lex_untranslated_string = false;
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return;
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}
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switch (c_parser_peek_token (parser)->type)
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{
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case CPP_STRING:
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case CPP_STRING16:
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case CPP_STRING32:
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case CPP_WSTRING:
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case CPP_UTF8STRING:
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string = c_parser_peek_token (parser)->value;
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c_parser_consume_token (parser);
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parser->lex_untranslated_string = false;
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break;
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default:
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c_parser_error (parser, "expected string literal");
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parser->lex_untranslated_string = false;
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return;
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switch (c_parser_peek_token (parser)->type)
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{
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case CPP_STRING:
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case CPP_STRING16:
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case CPP_STRING32:
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case CPP_WSTRING:
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case CPP_UTF8STRING:
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string = c_parser_peek_token (parser)->value;
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c_parser_consume_token (parser);
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parser->lex_untranslated_string = false;
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break;
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default:
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c_parser_error (parser, "expected string literal");
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parser->lex_untranslated_string = false;
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return;
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}
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}
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else if (flag_isoc11)
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/* If pedantic for pre-C11, the use of _Static_assert itself will
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have been diagnosed, so do not also diagnose the use of this
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new C2X feature of _Static_assert. */
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pedwarn_c11 (assert_loc, OPT_Wpedantic,
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"ISO C11 does not support omitting the string in "
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"%<_Static_assert%>");
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parens.require_close (parser);
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if (!INTEGRAL_TYPE_P (TREE_TYPE (value)))
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@ -2473,7 +2488,12 @@ c_parser_static_assert_declaration_no_semi (c_parser *parser)
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}
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constant_expression_warning (value);
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if (integer_zerop (value))
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error_at (assert_loc, "static assertion failed: %E", string);
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{
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if (string)
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error_at (assert_loc, "static assertion failed: %E", string);
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else
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error_at (assert_loc, "static assertion failed");
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}
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}
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/* Parse some declaration specifiers (possibly none) (C90 6.5, C99
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|
|
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|
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@ -762,6 +762,8 @@ extern bool pedwarn_c90 (location_t, int opt, const char *, ...)
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ATTRIBUTE_GCC_DIAG(3,4);
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extern bool pedwarn_c99 (location_t, int opt, const char *, ...)
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ATTRIBUTE_GCC_DIAG(3,4);
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extern bool pedwarn_c11 (location_t, int opt, const char *, ...)
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ATTRIBUTE_GCC_DIAG(3,4);
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||||
|
||||
extern void
|
||||
set_c_expr_source_range (c_expr *expr,
|
||||
|
|
|
|||
|
|
@ -366,6 +366,7 @@ rl78_option_override (void)
|
|||
&& strcmp (lang_hooks.name, "GNU C")
|
||||
&& strcmp (lang_hooks.name, "GNU C11")
|
||||
&& strcmp (lang_hooks.name, "GNU C17")
|
||||
&& strcmp (lang_hooks.name, "GNU C2X")
|
||||
&& strcmp (lang_hooks.name, "GNU C89")
|
||||
&& strcmp (lang_hooks.name, "GNU C99")
|
||||
/* Compiling with -flto results in a language of GNU GIMPLE being used... */
|
||||
|
|
|
|||
|
|
@ -1887,7 +1887,8 @@ the 1999 revision of the C standard; the value @code{201112L}
|
|||
signifies the 2011 revision of the C standard; the value
|
||||
@code{201710L} signifies the 2017 revision of the C standard (which is
|
||||
otherwise identical to the 2011 version apart from correction of
|
||||
defects).
|
||||
defects). An unspecified value larger than @code{201710L} is used for
|
||||
the experimental @option{-std=c2x} and @option{-std=gnu2x} modes.
|
||||
|
||||
This macro is not defined if the @option{-traditional-cpp} option is
|
||||
used, nor when compiling C++ or Objective-C@.
|
||||
|
|
|
|||
|
|
@ -1933,6 +1933,10 @@ same as C11 except for corrections of defects (all of which are also
|
|||
applied with @option{-std=c11}) and a new value of
|
||||
@code{__STDC_VERSION__}, and so is supported to the same extent as C11.
|
||||
|
||||
@item c2x
|
||||
The next version of the ISO C standard, still under development. The
|
||||
support for this version is experimental and incomplete.
|
||||
|
||||
@item gnu90
|
||||
@itemx gnu89
|
||||
GNU dialect of ISO C90 (including some C99 features).
|
||||
|
|
@ -1950,6 +1954,11 @@ The name @samp{gnu1x} is deprecated.
|
|||
@itemx gnu18
|
||||
GNU dialect of ISO C17. This is the default for C code.
|
||||
|
||||
@item gnu2x
|
||||
The next version of the ISO C standard, still under development, plus
|
||||
GNU extensions. The support for this version is experimental and
|
||||
incomplete.
|
||||
|
||||
@item c++98
|
||||
@itemx c++03
|
||||
The 1998 ISO C++ standard plus the 2003 technical corrigendum and some
|
||||
|
|
|
|||
|
|
@ -38,6 +38,8 @@ with some exceptions, and possibly with some extensions.
|
|||
@cindex C1X
|
||||
@cindex ISO C17
|
||||
@cindex C17
|
||||
@cindex ISO C2X
|
||||
@cindex C2X
|
||||
@cindex Technical Corrigenda
|
||||
@cindex TC1
|
||||
@cindex Technical Corrigendum 1
|
||||
|
|
@ -109,6 +111,10 @@ known as @dfn{C17} and is supported with @option{-std=c17} or
|
|||
@option{-std=c11}, and the only difference between the options is the
|
||||
value of @code{__STDC_VERSION__}.
|
||||
|
||||
A further version of the C standard, known as @dfn{C2X}, is under
|
||||
development; experimental and incomplete support for this is enabled
|
||||
with @option{-std=c2x}.
|
||||
|
||||
By default, GCC provides some extensions to the C language that, on
|
||||
rare occasions conflict with the C standard. @xref{C
|
||||
Extensions,,Extensions to the C Language Family}.
|
||||
|
|
|
|||
|
|
@ -24329,6 +24329,8 @@ highest_c_language (const char *lang1, const char *lang2)
|
|||
if (strcmp ("GNU C++98", lang1) == 0 || strcmp ("GNU C++98", lang2) == 0)
|
||||
return "GNU C++98";
|
||||
|
||||
if (strcmp ("GNU C2X", lang1) == 0 || strcmp ("GNU C2X", lang2) == 0)
|
||||
return "GNU C2X";
|
||||
if (strcmp ("GNU C17", lang1) == 0 || strcmp ("GNU C17", lang2) == 0)
|
||||
return "GNU C17";
|
||||
if (strcmp ("GNU C11", lang1) == 0 || strcmp ("GNU C11", lang2) == 0)
|
||||
|
|
@ -24408,7 +24410,8 @@ gen_compile_unit_die (const char *filename)
|
|||
|
||||
if (dwarf_version >= 5 /* || !dwarf_strict */)
|
||||
if (strcmp (language_string, "GNU C11") == 0
|
||||
|| strcmp (language_string, "GNU C17") == 0)
|
||||
|| strcmp (language_string, "GNU C17") == 0
|
||||
|| strcmp (language_string, "GNU C2X"))
|
||||
language = DW_LANG_C11;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,3 +1,11 @@
|
|||
2018-10-17 Joseph Myers <joseph@codesourcery.com>
|
||||
|
||||
* gcc.dg/c11-static-assert-7.c, gcc.dg/c11-static-assert-8.c,
|
||||
gcc.dg/c11-static-assert-9.c, gcc.dg/c2x-static-assert-1.c,
|
||||
gcc.dg/c2x-static-assert-2.c, gcc.dg/c99-static-assert-2.c,
|
||||
gcc.dg/gnu2x-static-assert-1.c: New tests.
|
||||
* gcc.dg/missing-symbol-3.c: Update expected fix-it text.
|
||||
|
||||
2018-10-17 Tobias Burnus <burnus@net-b.de>
|
||||
|
||||
PR fortran/87632
|
||||
|
|
|
|||
|
|
@ -0,0 +1,5 @@
|
|||
/* Test C11 static assertions. Omitting the string not supported. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=c11 -pedantic" } */
|
||||
|
||||
_Static_assert (1); /* { dg-warning "does not support omitting the string" } */
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
/* Test C11 static assertions. Omitting the string not supported. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=c11 -pedantic-errors" } */
|
||||
|
||||
_Static_assert (1); /* { dg-error "does not support omitting the string" } */
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
/* Test C11 static assertions. Omitting the string not supported, but
|
||||
-Wno-c11-c2x-compat disables the -pedantic diagnostic for that. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=c11 -pedantic -Wno-c11-c2x-compat" } */
|
||||
|
||||
_Static_assert (1);
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
/* Test C2x static assertions. Omitting the string supported. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=c2x -pedantic" } */
|
||||
|
||||
_Static_assert (1);
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
/* Test C2x static assertions. Omitting the string supported. Failed
|
||||
assertions. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=c2x -pedantic" } */
|
||||
|
||||
_Static_assert (0); /* { dg-error "static assertion failed" } */
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
/* Test static assertions. Omitting the string should not result in a
|
||||
duplicate diagnostic in pre-C11 modes. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=c99 -pedantic" } */
|
||||
|
||||
_Static_assert (1); /* { dg-warning "ISO C99 does not support '_Static_assert'" } */
|
||||
|
|
@ -0,0 +1,6 @@
|
|||
/* Test C11 static assertions. Omitting the string diagnosed with
|
||||
-Wc11-c2x-compat. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=gnu2x -Wc11-c2x-compat" } */
|
||||
|
||||
_Static_assert (1); /* { dg-warning "does not support omitting the string" } */
|
||||
|
|
@ -15,11 +15,11 @@ void test_static_assert_1 (void)
|
|||
|
||||
void test_static_assert_2 (void)
|
||||
{
|
||||
_Static_assert(sizeof(int) >= sizeof(char); /* { dg-error "expected ',' before ';' token" } */
|
||||
_Static_assert(sizeof(int) >= sizeof(char); /* { dg-error "expected '\\)' before ';' token" } */
|
||||
/* { dg-begin-multiline-output "" }
|
||||
_Static_assert(sizeof(int) >= sizeof(char);
|
||||
^
|
||||
,
|
||||
~ ^
|
||||
)
|
||||
{ dg-end-multiline-output "" } */
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -1,3 +1,9 @@
|
|||
2018-10-17 Joseph Myers <joseph@codesourcery.com>
|
||||
|
||||
* include/cpplib.h (enum c_lang): Add CLK_GNUC2X and CLK_STDC2X.
|
||||
* init.c (lang_defaults): Add GNUC2X and STDC2X entries.
|
||||
(cpp_init_builtins): Define __STDC_VERSION__ to 202000L for C2X.
|
||||
|
||||
2018-10-11 David Malcolm <dmalcolm@redhat.com>
|
||||
|
||||
* macro.c (_cpp_arguments_ok): If the argument count is wrong, add
|
||||
|
|
|
|||
|
|
@ -167,8 +167,9 @@ enum cpp_ttype
|
|||
#undef TK
|
||||
|
||||
/* C language kind, used when calling cpp_create_reader. */
|
||||
enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_GNUC11, CLK_GNUC17,
|
||||
enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_GNUC11, CLK_GNUC17, CLK_GNUC2X,
|
||||
CLK_STDC89, CLK_STDC94, CLK_STDC99, CLK_STDC11, CLK_STDC17,
|
||||
CLK_STDC2X,
|
||||
CLK_GNUCXX, CLK_CXX98, CLK_GNUCXX11, CLK_CXX11,
|
||||
CLK_GNUCXX14, CLK_CXX14, CLK_GNUCXX17, CLK_CXX17,
|
||||
CLK_GNUCXX2A, CLK_CXX2A, CLK_ASM};
|
||||
|
|
|
|||
|
|
@ -100,11 +100,13 @@ static const struct lang_flags lang_defaults[] =
|
|||
/* GNUC99 */ { 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1 },
|
||||
/* GNUC11 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1 },
|
||||
/* GNUC17 */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1 },
|
||||
/* GNUC2X */ { 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1 },
|
||||
/* STDC89 */ { 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0 },
|
||||
/* STDC94 */ { 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0 },
|
||||
/* STDC99 */ { 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0 },
|
||||
/* STDC11 */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0 },
|
||||
/* STDC17 */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0 },
|
||||
/* STDC2X */ { 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0 },
|
||||
/* GNUCXX */ { 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1 },
|
||||
/* CXX98 */ { 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0 },
|
||||
/* GNUCXX11 */ { 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1 },
|
||||
|
|
@ -521,6 +523,9 @@ cpp_init_builtins (cpp_reader *pfile, int hosted)
|
|||
_cpp_define_builtin (pfile, "__ASSEMBLER__ 1");
|
||||
else if (CPP_OPTION (pfile, lang) == CLK_STDC94)
|
||||
_cpp_define_builtin (pfile, "__STDC_VERSION__ 199409L");
|
||||
else if (CPP_OPTION (pfile, lang) == CLK_STDC2X
|
||||
|| CPP_OPTION (pfile, lang) == CLK_GNUC2X)
|
||||
_cpp_define_builtin (pfile, "__STDC_VERSION__ 202000L");
|
||||
else if (CPP_OPTION (pfile, lang) == CLK_STDC17
|
||||
|| CPP_OPTION (pfile, lang) == CLK_GNUC17)
|
||||
_cpp_define_builtin (pfile, "__STDC_VERSION__ 201710L");
|
||||
|
|
|
|||
Loading…
Reference in New Issue