From 83e25171a1cb0db643150e81b4cbe310fd6f4215 Mon Sep 17 00:00:00 2001 From: jsm28 Date: Sun, 6 Nov 2011 23:51:19 +0000 Subject: * c-decl.c (shadow_tag_warned, grokdeclarator): Handle _Alignas specifiers. (build_null_declspecs): Initialize align_log and alignas_p fields. (declspecs_add_alignas): New. * c-parser.c (c_token_starts_declspecs): Handle RID_ALIGNAS. (c_parser_declspecs): Handle _Alignas specifiers. (c_parser_alignas_specifier): New. (c_parser_alignof_expression): Diagnose alignof use for non-C1X. Diagnose _Alignof (expression). * c-tree.h (struct c_declspecs): Add align_log and alignas_p fields. (declspecs_add_alignas): Declare. * ginclude/stddef.h (max_align_t): Define for C1X and C++11. * ginclude/stdalign.h: New. * Makefile.in (USER_H): Add stdalign.h. c-family: * c-common.c (c_common_reswords): Add _Alignas and _Alignof. (c_sizeof_or_alignof_type): Diagnose alignof applied to a function type. (check_user_alignment): New. Split out of handle_aligned_attribute. Disallow integer constants with noninteger types. Conditionally allow zero. (handle_aligned_attribute): Use check_user_alignment. * c-common.h (RID_ALIGNAS, check_user_alignment): New. testsuite: * g++.dg/cpp0x/alignof3.C, gcc.dg/c1x-align-1.c, gcc.dg/c1x-align-2.c, gcc.dg/c1x-align-3.c, gcc.dg/c1x-align-4.c, gcc.dg/c90-align-1.c, gcc.dg/c99-align-1.c: New tests. * gcc.dg/gnu89-const-expr-1.c, gcc.dg/gnu90-const-expr-1.c, gcc.dg/gnu99-const-expr-1.c, gcc.dg/gnu99-static-1.c: Update expected diagnostics. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181048 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ginclude/stdalign.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 gcc/ginclude/stdalign.h (limited to 'gcc/ginclude/stdalign.h') diff --git a/gcc/ginclude/stdalign.h b/gcc/ginclude/stdalign.h new file mode 100644 index 00000000000..fd55ed3010a --- /dev/null +++ b/gcc/ginclude/stdalign.h @@ -0,0 +1,39 @@ +/* Copyright (C) 2011 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 3, or (at your option) +any later version. + +GCC is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +. */ + +/* ISO C1X: 7.15 Alignment . */ + +#ifndef _STDALIGN_H +#define _STDALIGN_H + +#ifndef __cplusplus + +#define alignas _Alignas +#define alignof _Alignof + +#define __alignas_is_defined 1 +#define __alignof_is_defined 1 + +#endif + +#endif /* stdalign.h */ -- cgit v1.2.1