mirror of git://gcc.gnu.org/git/gcc.git
gcc:
* c-decl.c (diagnose_mismatched_decls, grokdeclarator, grokfield) (finish_struct): Refer to C11 in comments. Use flag_isoc11. * c-parser.c (c_parser_static_assert_declaration) (c_parser_static_assert_declaration_no_semi, c_parser_declspecs) (c_parser_alignas_specifier, c_parser_alignof_expression): Refer to C11 in comments. Use flag_isoc11. * c-typeck.c (comptypes_check_different_types): Refer to C11 in comment. * doc/cpp.texi (Overview): Refer to -std=c11 instead of -std=c1x. * doc/cppopts.texi (-std=c11, -std=gnu11): Document in preference to -std=c1x and -std=gnu1x. * doc/extend.texi (Inline, Alternate Keywords, Other Builtins) (__builtin_complex, Unnamed Fields): Refer to -std=c11 and C11 instead of -std=c1x and C1X. * doc/invoke.texi (-std=c11, -std=iso9899:2011): Document in preference to -std=c1x. (-std=gnu11): Document in preference to -std=gnu1x. * doc/standards.texi: Document C11 instead of C1X. Document C11 as actual standard. Document headers required from freestanding C11 implementations. * ginclude/float.h, ginclude/stddef.h: Test __STDC_VERSION__ >= 201112L for C11. Update comments to refer to C11. gcc/c-family: * c-common.c (flag_isoc99): Update comment to refer to C11. (flag_isoc1x): Change to flag_isoc11. * c-common.h (flag_isoc99): Update comment to refer to C11. (flag_isoc1x): Change to flag_isoc11. * c-cppbuiltin.c (cpp_atomic_builtins): Change comment to refer to C11. * c-opts.c (set_std_c1x): Change to set_std_c11. (c_common_handle_option): Handle OPT_std_c11 and OPT_std_gnu11. Call set_std_c11. (set_std_c89, set_std_c99, set_std_c11): Use flag_isoc11. (set_std_c1): Use CLK_STDC11 and CLK_GNUC11. * c.opt (std=c1x): Change to std=c11. Document as non-draft standard. (std=c1x, std=iso9899:2011): Add as aliases of std=c11. (std=gnu1x): Change to std=gnu11. Refer to non-draft standard. (std=gnu1x): Make alias of std=gnu11. gcc/testsuite: * gcc.dg/c11-version-1.c, gcc.dg/c11-version-2.c, gcc.dg/c94-version-1.c, gcc.dg/c99-version-1.c, gcc.dg/gnu11-version-1.c: New tests. libcpp: * include/cpplib.h (CLK_GNUC1X): Change to CLK_GNUC11. (CLK_STDC1X): Change to CLK_STDC11. * init.c (lang_defaults): Update comments. (cpp_init_builtins): Update language tests. Use 201112L for C11 __STDC_VERSION__. From-SVN: r182551
This commit is contained in:
Joseph Myers
Joseph Myers
parent
d8fa39bfc8
commit
48b0b19630
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@ -1,3 +1,28 @@
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2011-12-20 Joseph Myers <joseph@codesourcery.com>
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* c-decl.c (diagnose_mismatched_decls, grokdeclarator, grokfield)
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(finish_struct): Refer to C11 in comments. Use flag_isoc11.
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* c-parser.c (c_parser_static_assert_declaration)
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(c_parser_static_assert_declaration_no_semi, c_parser_declspecs)
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(c_parser_alignas_specifier, c_parser_alignof_expression): Refer
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to C11 in comments. Use flag_isoc11.
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* c-typeck.c (comptypes_check_different_types): Refer to C11 in
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comment.
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* doc/cpp.texi (Overview): Refer to -std=c11 instead of -std=c1x.
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* doc/cppopts.texi (-std=c11, -std=gnu11): Document in preference
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to -std=c1x and -std=gnu1x.
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* doc/extend.texi (Inline, Alternate Keywords, Other Builtins)
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(__builtin_complex, Unnamed Fields): Refer to -std=c11 and C11
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instead of -std=c1x and C1X.
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* doc/invoke.texi (-std=c11, -std=iso9899:2011): Document in
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preference to -std=c1x.
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(-std=gnu11): Document in preference to -std=gnu1x.
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* doc/standards.texi: Document C11 instead of C1X. Document C11
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as actual standard. Document headers required from freestanding
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C11 implementations.
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* ginclude/float.h, ginclude/stddef.h: Test __STDC_VERSION__ >=
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201112L for C11. Update comments to refer to C11.
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2011-12-20 Andreas Schwab <schwab@linux-m68k.org>
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* configure: Regenerate.
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12
gcc/c-decl.c
12
gcc/c-decl.c
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@ -1786,7 +1786,7 @@ diagnose_mismatched_decls (tree newdecl, tree olddecl,
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/* Redeclaration of a type is a constraint violation (6.7.2.3p1),
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but silently ignore the redeclaration if either is in a system
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header. (Conflicting redeclarations were handled above.) This
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is allowed for C1X if the types are the same, not just
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is allowed for C11 if the types are the same, not just
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compatible. */
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if (TREE_CODE (newdecl) == TYPE_DECL)
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{
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@ -1815,7 +1815,7 @@ diagnose_mismatched_decls (tree newdecl, tree olddecl,
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newdecl);
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locate_old_decl (olddecl);
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}
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else if (pedantic && !flag_isoc1x)
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else if (pedantic && !flag_isoc11)
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{
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pedwarn (input_location, OPT_pedantic,
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"redefinition of typedef %q+D", newdecl);
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@ -6077,7 +6077,7 @@ grokdeclarator (const struct c_declarator *declarator,
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DECL_DECLARED_INLINE_P (decl) = 1;
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if (declspecs->noreturn_p)
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{
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if (!flag_isoc1x)
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if (!flag_isoc11)
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{
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if (flag_isoc99)
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pedwarn (loc, OPT_pedantic,
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@ -6761,7 +6761,7 @@ grokfield (location_t loc,
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If this is something of the form "foo;" and foo is a TYPE_DECL, then
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If foo names a structure or union without a tag, then this
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is an anonymous struct (this is permitted by C1X).
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is an anonymous struct (this is permitted by C11).
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If MS or Plan 9 extensions are enabled and foo names a
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structure, then again this is an anonymous struct.
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Otherwise this is an error.
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@ -6792,7 +6792,7 @@ grokfield (location_t loc,
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pedwarn (loc, 0, "declaration does not declare anything");
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return NULL_TREE;
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}
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if (!flag_isoc1x)
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if (!flag_isoc11)
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{
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if (flag_isoc99)
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pedwarn (loc, OPT_pedantic,
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@ -7072,7 +7072,7 @@ finish_struct (location_t loc, tree t, tree fieldlist, tree attributes,
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{
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if (DECL_NAME (x) != 0)
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break;
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if (flag_isoc1x
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if (flag_isoc11
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&& (TREE_CODE (TREE_TYPE (x)) == RECORD_TYPE
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|| TREE_CODE (TREE_TYPE (x)) == UNION_TYPE))
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break;
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@ -1,3 +1,22 @@
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2011-12-20 Joseph Myers <joseph@codesourcery.com>
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* c-common.c (flag_isoc99): Update comment to refer to C11.
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(flag_isoc1x): Change to flag_isoc11.
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* c-common.h (flag_isoc99): Update comment to refer to C11.
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(flag_isoc1x): Change to flag_isoc11.
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* c-cppbuiltin.c (cpp_atomic_builtins): Change comment to refer to
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C11.
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* c-opts.c (set_std_c1x): Change to set_std_c11.
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(c_common_handle_option): Handle OPT_std_c11 and OPT_std_gnu11.
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Call set_std_c11.
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(set_std_c89, set_std_c99, set_std_c11): Use flag_isoc11.
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(set_std_c1): Use CLK_STDC11 and CLK_GNUC11.
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* c.opt (std=c1x): Change to std=c11. Document as non-draft
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standard.
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(std=c1x, std=iso9899:2011): Add as aliases of std=c11.
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(std=gnu1x): Change to std=gnu11. Refer to non-draft standard.
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(std=gnu1x): Make alias of std=gnu11.
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2011-12-19 Jason Merrill <jason@redhat.com>
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PR c++/51228
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@ -216,13 +216,13 @@ int flag_cond_mismatch;
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int flag_isoc94;
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/* Nonzero means use the ISO C99 (or C1X) dialect of C. */
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/* Nonzero means use the ISO C99 (or C11) dialect of C. */
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int flag_isoc99;
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/* Nonzero means use the ISO C1X dialect of C. */
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/* Nonzero means use the ISO C11 dialect of C. */
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int flag_isoc1x;
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int flag_isoc11;
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/* Nonzero means that we have builtin functions, and main is an int. */
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@ -106,7 +106,7 @@ enum rid
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RID_DFLOAT32, RID_DFLOAT64, RID_DFLOAT128,
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RID_FRACT, RID_ACCUM,
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/* C1X */
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/* C11 */
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RID_ALIGNAS,
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/* This means to warn that this is a C++ keyword, and then treat it
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@ -607,13 +607,13 @@ extern int flag_cond_mismatch;
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extern int flag_isoc94;
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/* Nonzero means use the ISO C99 (or C1X) dialect of C. */
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/* Nonzero means use the ISO C99 (or C11) dialect of C. */
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extern int flag_isoc99;
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/* Nonzero means use the ISO C1X dialect of C. */
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/* Nonzero means use the ISO C11 dialect of C. */
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extern int flag_isoc1x;
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extern int flag_isoc11;
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/* Nonzero means that we have builtin functions, and main is an int. */
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@ -646,7 +646,7 @@ cpp_atomic_builtins (cpp_reader *pfile)
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have_swap[16] = true;
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}
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/* Tell the source code about various types. These map to the C++11 and C1x
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/* Tell the source code about various types. These map to the C++11 and C11
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macros where 2 indicates lock-free always, and 1 indicates sometimes
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lock free. */
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#define SIZEOF_NODE(T) (tree_low_cst (TYPE_SIZE_UNIT (T), 1))
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@ -113,7 +113,7 @@ static void set_std_cxx98 (int);
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static void set_std_cxx11 (int);
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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_c1x (int);
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static void set_std_c11 (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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@ -799,14 +799,14 @@ c_common_handle_option (size_t scode, const char *arg, int value,
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set_std_c99 (false /* ISO */);
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break;
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case OPT_std_c1x:
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case OPT_std_c11:
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if (!preprocessing_asm_p)
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set_std_c1x (true /* ISO */);
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set_std_c11 (true /* ISO */);
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break;
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case OPT_std_gnu1x:
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case OPT_std_gnu11:
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if (!preprocessing_asm_p)
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set_std_c1x (false /* ISO */);
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set_std_c11 (false /* ISO */);
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break;
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case OPT_trigraphs:
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@ -1465,7 +1465,7 @@ set_std_c89 (int c94, int iso)
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flag_no_nonansi_builtin = iso;
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flag_isoc94 = c94;
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flag_isoc99 = 0;
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flag_isoc1x = 0;
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flag_isoc11 = 0;
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}
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/* Set the C 99 standard (without GNU extensions if ISO). */
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@ -1476,20 +1476,20 @@ 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_isoc1x = 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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}
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/* Set the C 1X standard draft (without GNU extensions if ISO). */
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/* Set the C 11 standard (without GNU extensions if ISO). */
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static void
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set_std_c1x (int iso)
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set_std_c11 (int iso)
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{
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cpp_set_lang (parse_in, iso ? CLK_STDC1X: CLK_GNUC1X);
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cpp_set_lang (parse_in, iso ? CLK_STDC11: CLK_GNUC11);
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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_isoc1x = 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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}
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@ -1191,9 +1191,13 @@ std=c++0x
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C++ ObjC++ Alias(std=c++11)
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Deprecated in favor of -std=c++11
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std=c1x
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std=c11
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C ObjC
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Conform to the ISO 201X C standard draft (experimental and incomplete support)
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Conform to the ISO 2011 C standard (experimental and incomplete support)
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std=c1x
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C ObjC Alias(std=c11)
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Deprecated in favor of -std=c11
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std=c89
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C ObjC Alias(std=c90)
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@ -1229,9 +1233,13 @@ std=gnu++0x
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C++ ObjC++ Alias(std=gnu++11)
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Deprecated in favor of -std=gnu++11
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std=gnu1x
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std=gnu11
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C ObjC
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Conform to the ISO 201X C standard draft with GNU extensions (experimental and incomplete support)
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Conform to the ISO 2011 C standard with GNU extensions (experimental and incomplete support)
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std=gnu1x
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C ObjC Alias(std=gnu11)
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Deprecated in favor of -std=gnu11
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std=gnu89
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C ObjC Alias(std=gnu90)
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@ -1265,6 +1273,10 @@ std=iso9899:199x
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C ObjC Alias(std=c99)
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Deprecated in favor of -std=iso9899:1999
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std=iso9899:2011
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C ObjC Alias(std=c11)
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Conform to the ISO 2011 C standard (experimental and incomplete support)
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traditional
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Driver
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|
|
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@ -1796,7 +1796,7 @@ c_parser_asm_definition (c_parser *parser)
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c_parser_skip_until_found (parser, CPP_SEMICOLON, "expected %<;%>");
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}
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/* Parse a static assertion (C1X N1425 6.7.10).
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/* Parse a static assertion (C11 6.7.10).
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static_assert-declaration:
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static_assert-declaration-no-semi ;
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@ -1811,7 +1811,7 @@ c_parser_static_assert_declaration (c_parser *parser)
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c_parser_skip_to_end_of_block_or_statement (parser);
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}
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|
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/* Parse a static assertion (C1X N1425 6.7.10), without the trailing
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/* Parse a static assertion (C11 6.7.10), without the trailing
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semicolon.
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static_assert-declaration-no-semi:
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|
|
@ -1827,7 +1827,7 @@ c_parser_static_assert_declaration_no_semi (c_parser *parser)
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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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if (!flag_isoc1x)
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if (!flag_isoc11)
|
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{
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if (flag_isoc99)
|
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pedwarn (assert_loc, OPT_pedantic,
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|
|
@ -1902,7 +1902,7 @@ c_parser_static_assert_declaration_no_semi (c_parser *parser)
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Function specifiers (inline) are from C99, and are currently
|
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handled as storage class specifiers, as is __thread. Alignment
|
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specifiers are from C1X.
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specifiers are from C11.
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C90 6.5.1, C99 6.7.1:
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storage-class-specifier:
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|
|
@ -1917,7 +1917,7 @@ c_parser_static_assert_declaration_no_semi (c_parser *parser)
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inline
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_Noreturn
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||||
|
||||
(_Noreturn is new in C1X.)
|
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(_Noreturn is new in C11.)
|
||||
|
||||
C90 6.5.2, C99 6.7.2:
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||||
type-specifier:
|
||||
|
|
@ -2768,7 +2768,7 @@ c_parser_typeof_specifier (c_parser *parser)
|
|||
|
||||
/* Parse an alignment-specifier.
|
||||
|
||||
C1X 6.7.5:
|
||||
C11 6.7.5:
|
||||
|
||||
alignment-specifier:
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_Alignas ( type-name )
|
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|
|
@ -2782,7 +2782,7 @@ c_parser_alignas_specifier (c_parser * parser)
|
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location_t loc = c_parser_peek_token (parser)->location;
|
||||
gcc_assert (c_parser_next_token_is_keyword (parser, RID_ALIGNAS));
|
||||
c_parser_consume_token (parser);
|
||||
if (!flag_isoc1x)
|
||||
if (!flag_isoc11)
|
||||
{
|
||||
if (flag_isoc99)
|
||||
pedwarn (loc, OPT_pedantic,
|
||||
|
|
@ -5841,7 +5841,7 @@ c_parser_cast_expression (c_parser *parser, struct c_expr *after)
|
|||
__alignof__ ( type-name )
|
||||
&& identifier
|
||||
|
||||
(C1X permits _Alignof with type names only.)
|
||||
(C11 permits _Alignof with type names only.)
|
||||
|
||||
unary-operator: one of
|
||||
__extension__ __real__ __imag__
|
||||
|
|
@ -6038,9 +6038,9 @@ c_parser_alignof_expression (c_parser *parser)
|
|||
tree alignof_spelling = c_parser_peek_token (parser)->value;
|
||||
gcc_assert (c_parser_next_token_is_keyword (parser, RID_ALIGNOF));
|
||||
/* A diagnostic is not required for the use of this identifier in
|
||||
the implementation namespace; only diagnose it for the C1X
|
||||
the implementation namespace; only diagnose it for the C11
|
||||
spelling because of existing code using the other spellings. */
|
||||
if (!flag_isoc1x
|
||||
if (!flag_isoc11
|
||||
&& strcmp (IDENTIFIER_POINTER (alignof_spelling), "_Alignof") == 0)
|
||||
{
|
||||
if (flag_isoc99)
|
||||
|
|
|
|||
|
|
@ -1014,7 +1014,7 @@ comptypes_check_different_types (tree type1, tree type2,
|
|||
compatible integer type, then this sets *ENUM_AND_INT_P to true;
|
||||
*ENUM_AND_INT_P is never set to false. If DIFFERENT_TYPES_P is not
|
||||
NULL, and the types are compatible but different enough not to be
|
||||
permitted in C1X typedef redeclarations, then this sets
|
||||
permitted in C11 typedef redeclarations, then this sets
|
||||
*DIFFERENT_TYPES_P to true; *DIFFERENT_TYPES_P is never set to
|
||||
false, but may or may not be set if the types are incompatible.
|
||||
This differs from comptypes, in that we don't free the seen
|
||||
|
|
|
|||
|
|
@ -216,7 +216,7 @@ few things required by the standard. These are features which are
|
|||
rarely, if ever, used, and may cause surprising changes to the meaning
|
||||
of a program which does not expect them. To get strict ISO Standard C,
|
||||
you should use the @option{-std=c90}, @option{-std=c99} or
|
||||
@option{-std=c1x} options, depending
|
||||
@option{-std=c11} options, depending
|
||||
on which version of the standard you want. To get all the mandatory
|
||||
diagnostics, you must also use @option{-pedantic}. @xref{Invocation}.
|
||||
|
||||
|
|
|
|||
|
|
@ -392,8 +392,11 @@ The 1990 C standard, as amended in 1994.
|
|||
The revised ISO C standard, published in December 1999. Before
|
||||
publication, this was known as C9X@.
|
||||
|
||||
@item c1x
|
||||
The next version of the ISO C standard, still under development.
|
||||
@item iso9899:2011
|
||||
@itemx c11
|
||||
@itemx c1x
|
||||
The revised ISO C standard, published in December 2011. Before
|
||||
publication, this was known as C1X@.
|
||||
|
||||
@item gnu90
|
||||
@itemx gnu89
|
||||
|
|
@ -403,9 +406,9 @@ The 1990 C standard plus GNU extensions. This is the default.
|
|||
@itemx gnu9x
|
||||
The 1999 C standard plus GNU extensions.
|
||||
|
||||
@item gnu1x
|
||||
The next version of the ISO C standard, still under development, plus
|
||||
GNU extensions.
|
||||
@item gnu11
|
||||
@itemx gnu1x
|
||||
The 2011 C standard plus GNU extensions.
|
||||
|
||||
@item c++98
|
||||
The 1998 ISO C++ standard plus amendments.
|
||||
|
|
|
|||
|
|
@ -5298,8 +5298,8 @@ GCC implements three different semantics of declaring a function
|
|||
inline. One is available with @option{-std=gnu89} or
|
||||
@option{-fgnu89-inline} or when @code{gnu_inline} attribute is present
|
||||
on all inline declarations, another when
|
||||
@option{-std=c99}, @option{-std=c1x},
|
||||
@option{-std=gnu99} or @option{-std=gnu1x}
|
||||
@option{-std=c99}, @option{-std=c11},
|
||||
@option{-std=gnu99} or @option{-std=gnu11}
|
||||
(without @option{-fgnu89-inline}), and the third
|
||||
is used when compiling C++.
|
||||
|
||||
|
|
@ -6313,7 +6313,7 @@ a general-purpose header file that should be usable by all programs,
|
|||
including ISO C programs. The keywords @code{asm}, @code{typeof} and
|
||||
@code{inline} are not available in programs compiled with
|
||||
@option{-ansi} or @option{-std} (although @code{inline} can be used in a
|
||||
program compiled with @option{-std=c99} or @option{-std=c1x}). The
|
||||
program compiled with @option{-std=c99} or @option{-std=c11}). The
|
||||
ISO C99 keyword
|
||||
@code{restrict} is only available when @option{-std=gnu99} (which will
|
||||
eventually be the default) or @option{-std=c99} (or the equivalent
|
||||
|
|
@ -7623,7 +7623,7 @@ be emitted.
|
|||
@opindex ansi
|
||||
@opindex std
|
||||
Outside strict ISO C mode (@option{-ansi}, @option{-std=c90},
|
||||
@option{-std=c99} or @option{-std=c1x}), the functions
|
||||
@option{-std=c99} or @option{-std=c11}), the functions
|
||||
@code{_exit}, @code{alloca}, @code{bcmp}, @code{bzero},
|
||||
@code{dcgettext}, @code{dgettext}, @code{dremf}, @code{dreml},
|
||||
@code{drem}, @code{exp10f}, @code{exp10l}, @code{exp10}, @code{ffsll},
|
||||
|
|
@ -7843,7 +7843,7 @@ future revisions.
|
|||
@deftypefn {Built-in Function} @var{type} __builtin_complex (@var{real}, @var{imag})
|
||||
|
||||
The built-in function @code{__builtin_complex} is provided for use in
|
||||
implementing the ISO C1X macros @code{CMPLXF}, @code{CMPLX} and
|
||||
implementing the ISO C11 macros @code{CMPLXF}, @code{CMPLX} and
|
||||
@code{CMPLXL}. @var{real} and @var{imag} must have the same type, a
|
||||
real binary floating-point type, and the result has the corresponding
|
||||
complex type with real and imaginary parts @var{real} and @var{imag}.
|
||||
|
|
@ -14123,7 +14123,7 @@ versions earlier than 4.4.
|
|||
@cindex @code{struct}
|
||||
@cindex @code{union}
|
||||
|
||||
As permitted by ISO C1X and for compatibility with other compilers,
|
||||
As permitted by ISO C11 and for compatibility with other compilers,
|
||||
GCC allows you to define
|
||||
a structure or union that contains, as fields, structures and unions
|
||||
without names. For example:
|
||||
|
|
|
|||
|
|
@ -1557,11 +1557,12 @@ ISO C99. Note that this standard is not yet fully supported; see
|
|||
@w{@uref{http://gcc.gnu.org/c99status.html}} for more information. The
|
||||
names @samp{c9x} and @samp{iso9899:199x} are deprecated.
|
||||
|
||||
@item c1x
|
||||
ISO C1X, the draft of the next revision of the ISO C standard.
|
||||
Support is limited and experimental and features enabled by this
|
||||
option may be changed or removed if changed in or removed from the
|
||||
standard draft.
|
||||
@item c11
|
||||
@itemx c1x
|
||||
@itemx iso9899:2011
|
||||
ISO C11, the 2011 revision of the ISO C standard.
|
||||
Support is incomplete and experimental. The name @samp{c1x} is
|
||||
deprecated.
|
||||
|
||||
@item gnu90
|
||||
@itemx gnu89
|
||||
|
|
@ -1573,10 +1574,10 @@ is the default for C code.
|
|||
GNU dialect of ISO C99. When ISO C99 is fully implemented in GCC,
|
||||
this will become the default. The name @samp{gnu9x} is deprecated.
|
||||
|
||||
@item gnu11
|
||||
@item gnu1x
|
||||
GNU dialect of ISO C1X. Support is limited and experimental and
|
||||
features enabled by this option may be changed or removed if changed
|
||||
in or removed from the standard draft.
|
||||
GNU dialect of ISO C11. Support is incomplete and experimental. The
|
||||
name @samp{gnu1x} is deprecated.
|
||||
|
||||
@item c++98
|
||||
The 1998 ISO C++ standard plus amendments. Same as @option{-ansi} for
|
||||
|
|
|
|||
|
|
@ -33,6 +33,8 @@ with some exceptions, and possibly with some extensions.
|
|||
@cindex C99
|
||||
@cindex ISO C9X
|
||||
@cindex C9X
|
||||
@cindex ISO C11
|
||||
@cindex C11
|
||||
@cindex ISO C1X
|
||||
@cindex C1X
|
||||
@cindex Technical Corrigenda
|
||||
|
|
@ -95,9 +97,11 @@ Errors in the 1999 ISO C standard were corrected in three Technical
|
|||
Corrigenda published in 2001, 2004 and 2007. GCC does not support the
|
||||
uncorrected version.
|
||||
|
||||
A fourth version of the C standard, known as @dfn{C1X}, is under
|
||||
development; GCC has limited preliminary support for parts of this
|
||||
standard, enabled with @option{-std=c1x}.
|
||||
A fourth version of the C standard, known as @dfn{C11}, was published
|
||||
in 2011 as ISO/IEC 9899:2011. GCC has limited incomplete support for
|
||||
parts of this standard, enabled with @option{-std=c11} or
|
||||
@option{-std=iso9899:2011}. (While in development, drafts of this
|
||||
standard version were referred to as @dfn{C1X}.)
|
||||
|
||||
By default, GCC provides some extensions to the C language that on
|
||||
rare occasions conflict with the C standard. @xref{C
|
||||
|
|
@ -106,12 +110,14 @@ Extensions,,Extensions to the C Language Family}. Use of the
|
|||
they conflict with the C standard version selected. You may also
|
||||
select an extended version of the C language explicitly with
|
||||
@option{-std=gnu90} (for C90 with GNU extensions), @option{-std=gnu99}
|
||||
(for C99 with GNU extensions) or @option{-std=gnu1x} (for C1X with GNU
|
||||
(for C99 with GNU extensions) or @option{-std=gnu11} (for C11 with GNU
|
||||
extensions). The default, if no C language dialect
|
||||
options are given, is @option{-std=gnu90}; this will change to
|
||||
@option{-std=gnu99} in some future release when the C99 support is
|
||||
@option{-std=gnu99} or @option{-std=gnu11} in some future release when
|
||||
the C99 or C11 support is
|
||||
complete. Some features that are part of the C99 standard are
|
||||
accepted as extensions in C90 mode.
|
||||
accepted as extensions in C90 mode, and some features that are part of
|
||||
the C11 standard are accepted as extensions in C90 and C99 modes.
|
||||
|
||||
The ISO C standard defines (in clause 4) two classes of conforming
|
||||
implementation. A @dfn{conforming hosted implementation} supports the
|
||||
|
|
@ -119,8 +125,9 @@ whole standard including all the library facilities; a @dfn{conforming
|
|||
freestanding implementation} is only required to provide certain
|
||||
library facilities: those in @code{<float.h>}, @code{<limits.h>},
|
||||
@code{<stdarg.h>}, and @code{<stddef.h>}; since AMD1, also those in
|
||||
@code{<iso646.h>}; and in C99, also those in @code{<stdbool.h>} and
|
||||
@code{<stdint.h>}. In addition, complex types, added in C99, are not
|
||||
@code{<iso646.h>}; since C99, also those in @code{<stdbool.h>} and
|
||||
@code{<stdint.h>}; and since C11, also those in @code{<stdalign.h>}
|
||||
and @code{<stdnoreturn.h>}. In addition, complex types, added in C99, are not
|
||||
required for freestanding implementations. The standard also defines
|
||||
two environments for programs, a @dfn{freestanding environment},
|
||||
required of all implementations and which may not have library
|
||||
|
|
|
|||
|
|
@ -1,4 +1,5 @@
|
|||
/* Copyright (C) 2002, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
|
||||
/* Copyright (C) 2002, 2007, 2008, 2009, 2010, 2011
|
||||
Free Software Foundation, Inc.
|
||||
|
||||
This file is part of GCC.
|
||||
|
||||
|
|
@ -157,7 +158,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|||
|
||||
#endif /* C99 */
|
||||
|
||||
#if defined (__STDC_VERSION__) && __STDC_VERSION__ > 199901L
|
||||
#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
|
||||
/* Versions of DECIMAL_DIG for each floating-point type. */
|
||||
#undef FLT_DECIMAL_DIG
|
||||
#undef DBL_DECIMAL_DIG
|
||||
|
|
@ -194,7 +195,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|||
#define LDBL_TRUE_MIN __LDBL_MIN__
|
||||
#endif
|
||||
|
||||
#endif /* C1X */
|
||||
#endif /* C11 */
|
||||
|
||||
#ifdef __STDC_WANT_DEC_FP__
|
||||
/* Draft Technical Report 24732, extension for decimal floating-point
|
||||
|
|
|
|||
|
|
@ -412,7 +412,7 @@ typedef __WINT_TYPE__ wint_t;
|
|||
/* Offset of member MEMBER in a struct of type TYPE. */
|
||||
#define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
|
||||
|
||||
#if (defined (__STDC_VERSION__) && __STDC_VERSION__ > 199901L) \
|
||||
#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) \
|
||||
|| (defined(__cplusplus) && __cplusplus >= 201103L)
|
||||
#ifndef _GCC_MAX_ALIGN_T
|
||||
#define _GCC_MAX_ALIGN_T
|
||||
|
|
@ -424,7 +424,7 @@ typedef struct {
|
|||
long double __max_align_ld __attribute__((__aligned__(__alignof__(long double))));
|
||||
} max_align_t;
|
||||
#endif
|
||||
#endif /* C1X or C++11. */
|
||||
#endif /* C11 or C++11. */
|
||||
|
||||
#endif /* _STDDEF_H was defined this time */
|
||||
|
||||
|
|
|
|||
|
|
@ -1,3 +1,9 @@
|
|||
2011-12-20 Joseph Myers <joseph@codesourcery.com>
|
||||
|
||||
* gcc.dg/c11-version-1.c, gcc.dg/c11-version-2.c,
|
||||
gcc.dg/c94-version-1.c, gcc.dg/c99-version-1.c,
|
||||
gcc.dg/gnu11-version-1.c: New tests.
|
||||
|
||||
2011-12-20 Bernd Schmidt <bernds@codesourcery.com>
|
||||
|
||||
PR middle-end/51200
|
||||
|
|
|
|||
|
|
@ -0,0 +1,9 @@
|
|||
/* Test __STDC_VERSION__ for C11. Test -std=c11. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=c11 -pedantic-errors" } */
|
||||
|
||||
#if __STDC_VERSION__ == 201112L
|
||||
int i;
|
||||
#else
|
||||
#error "Bad __STDC_VERSION__."
|
||||
#endif
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
/* Test __STDC_VERSION__ for C11. Test -std=iso9899:2011. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=iso9899:2011 -pedantic-errors" } */
|
||||
|
||||
#if __STDC_VERSION__ == 201112L
|
||||
int i;
|
||||
#else
|
||||
#error "Bad __STDC_VERSION__."
|
||||
#endif
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
/* Test __STDC_VERSION__ for C94. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=iso9899:199409 -pedantic-errors" } */
|
||||
|
||||
#if __STDC_VERSION__ == 199409L
|
||||
int i;
|
||||
#else
|
||||
#error "Bad __STDC_VERSION__."
|
||||
#endif
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
/* Test __STDC_VERSION__ for C99. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=c99 -pedantic-errors" } */
|
||||
|
||||
#if __STDC_VERSION__ == 199901L
|
||||
int i;
|
||||
#else
|
||||
#error "Bad __STDC_VERSION__."
|
||||
#endif
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
/* Test __STDC_VERSION__ for C11 with GNU extensions. Test -std=gnu11. */
|
||||
/* { dg-do compile } */
|
||||
/* { dg-options "-std=gnu11 -pedantic-errors" } */
|
||||
|
||||
#if __STDC_VERSION__ == 201112L
|
||||
int i;
|
||||
#else
|
||||
#error "Bad __STDC_VERSION__."
|
||||
#endif
|
||||
|
|
@ -1,3 +1,11 @@
|
|||
2011-12-20 Joseph Myers <joseph@codesourcery.com>
|
||||
|
||||
* include/cpplib.h (CLK_GNUC1X): Change to CLK_GNUC11.
|
||||
(CLK_STDC1X): Change to CLK_STDC11.
|
||||
* init.c (lang_defaults): Update comments.
|
||||
(cpp_init_builtins): Update language tests. Use 201112L for C11
|
||||
__STDC_VERSION__.
|
||||
|
||||
2011-12-20 Andreas Schwab <schwab@linux-m68k.org>
|
||||
|
||||
* configure: Regenerate.
|
||||
|
|
|
|||
|
|
@ -165,8 +165,8 @@ enum cpp_ttype
|
|||
#undef TK
|
||||
|
||||
/* C language kind, used when calling cpp_create_reader. */
|
||||
enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_GNUC1X,
|
||||
CLK_STDC89, CLK_STDC94, CLK_STDC99, CLK_STDC1X,
|
||||
enum c_lang {CLK_GNUC89 = 0, CLK_GNUC99, CLK_GNUC11,
|
||||
CLK_STDC89, CLK_STDC94, CLK_STDC99, CLK_STDC11,
|
||||
CLK_GNUCXX, CLK_CXX98, CLK_GNUCXX11, CLK_CXX11, CLK_ASM};
|
||||
|
||||
/* Payload of a NUMBER, STRING, CHAR or COMMENT token. */
|
||||
|
|
|
|||
|
|
@ -87,11 +87,11 @@ static const struct lang_flags lang_defaults[] =
|
|||
{ /* c99 c++ xnum xid std // digr ulit rlit user_literals */
|
||||
/* GNUC89 */ { 0, 0, 1, 0, 0, 1, 1, 0, 0, 0 },
|
||||
/* GNUC99 */ { 1, 0, 1, 0, 0, 1, 1, 1, 1, 0 },
|
||||
/* GNUC1X */ { 1, 0, 1, 0, 0, 1, 1, 1, 1, 0 },
|
||||
/* GNUC11 */ { 1, 0, 1, 0, 0, 1, 1, 1, 1, 0 },
|
||||
/* STDC89 */ { 0, 0, 0, 0, 1, 0, 0, 0, 0, 0 },
|
||||
/* STDC94 */ { 0, 0, 0, 0, 1, 0, 1, 0, 0, 0 },
|
||||
/* STDC99 */ { 1, 0, 1, 0, 1, 1, 1, 0, 0, 0 },
|
||||
/* STDC1X */ { 1, 0, 1, 0, 1, 1, 1, 1, 0, 0 },
|
||||
/* STDC11 */ { 1, 0, 1, 0, 1, 1, 1, 1, 0, 0 },
|
||||
/* GNUCXX */ { 0, 1, 1, 0, 0, 1, 1, 0, 0, 0 },
|
||||
/* CXX98 */ { 0, 1, 1, 0, 1, 1, 1, 0, 0, 0 },
|
||||
/* GNUCXX11 */ { 1, 1, 1, 0, 0, 1, 1, 1, 1, 1 },
|
||||
|
|
@ -474,9 +474,9 @@ 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_STDC1X
|
||||
|| CPP_OPTION (pfile, lang) == CLK_GNUC1X)
|
||||
_cpp_define_builtin (pfile, "__STDC_VERSION__ 201000L");
|
||||
else if (CPP_OPTION (pfile, lang) == CLK_STDC11
|
||||
|| CPP_OPTION (pfile, lang) == CLK_GNUC11)
|
||||
_cpp_define_builtin (pfile, "__STDC_VERSION__ 201112L");
|
||||
else if (CPP_OPTION (pfile, c99))
|
||||
_cpp_define_builtin (pfile, "__STDC_VERSION__ 199901L");
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue