Hi, tested x86_64-linux, committed to mainline.
Thanks, Paolo. ////////////////////////
2013-06-11 Paolo Carlini <paolo.carl...@oracle.com> PR libstdc++/56019 * include/c_global/cstddef (max_align_t): Add to namespace std. * include/c_std/cstddef: Likewise. * testsuite/18_support/max_align_t/requirements/1.cc: New. * testsuite/18_support/max_align_t/requirements/2.cc: Likewise.
Index: include/c_global/cstddef =================================================================== --- include/c_global/cstddef (revision 199937) +++ include/c_global/cstddef (working copy) @@ -36,7 +36,20 @@ // ISO C++ 14882: 18.1 Types // +#ifndef _GLIBCXX_CSTDDEF +#define _GLIBCXX_CSTDDEF 1 + #pragma GCC system_header #include <bits/c++config.h> #include <stddef.h> + +#if __cplusplus >= 201103L +namespace std +{ + // We handle size_t, ptrdiff_t, and nullptr_t in c++config.h. + using ::max_align_t; +} +#endif + +#endif // _GLIBCXX_CSTDDEF Index: include/c_std/cstddef =================================================================== --- include/c_std/cstddef (revision 199937) +++ include/c_std/cstddef (working copy) @@ -44,4 +44,12 @@ #include <bits/c++config.h> #include <stddef.h> +#if __cplusplus >= 201103L +namespace std +{ + // We handle size_t, ptrdiff_t, and nullptr_t in c++config.h. + using ::max_align_t; +} #endif + +#endif // _GLIBCXX_CSTDDEF Index: testsuite/18_support/max_align_t/requirements/1.cc =================================================================== --- testsuite/18_support/max_align_t/requirements/1.cc (revision 0) +++ testsuite/18_support/max_align_t/requirements/1.cc (working copy) @@ -0,0 +1,23 @@ +// { dg-do compile } +// { dg-options "-std=gnu++11" } +// +// Copyright (C) 2013 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library 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. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +#include <cstddef> + +std::max_align_t t; Index: testsuite/18_support/max_align_t/requirements/2.cc =================================================================== --- testsuite/18_support/max_align_t/requirements/2.cc (revision 0) +++ testsuite/18_support/max_align_t/requirements/2.cc (working copy) @@ -0,0 +1,24 @@ +// { dg-do compile } +// { dg-options "-std=gnu++11" } +// +// Copyright (C) 2013 Free Software Foundation, Inc. +// +// This file is part of the GNU ISO C++ Library. This library 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. + +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. + +// You should have received a copy of the GNU General Public License along +// with this library; see the file COPYING3. If not see +// <http://www.gnu.org/licenses/>. + +#include <cstddef> +#include <type_traits> + +static_assert (std::is_pod<std::max_align_t>::value, "");