4cbaaa459e
2015-04-09 Jonathan Wakely <jwakely@redhat.com> Richard Henderson <rth@redhat.com> PR libstdc++/65147 * include/bits/atomic_base.h (__atomic_base<_ITp>): Increase alignment. * include/std/atomic (atomic): For types with a power of two size set alignment to at least the size. * testsuite/29_atomics/atomic/60695.cc: Adjust dg-error line number. * testsuite/29_atomics/atomic/65147.cc: New. * testsuite/29_atomics/atomic_integral/65147.cc: New. Co-Authored-By: Richard Henderson <rth@redhat.com> From-SVN: r221945
33 lines
1.4 KiB
C++
33 lines
1.4 KiB
C++
// Copyright (C) 2015 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-options "-std=gnu++11" }
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// { dg-do compile }
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#include <atomic>
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static_assert( alignof(std::atomic<char>) >= sizeof(char),
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"atomic<char> must be aligned to at least its size" );
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static_assert( alignof(std::atomic<short>) >= sizeof(short),
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"atomic<short> must be aligned to at least its size" );
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static_assert( alignof(std::atomic<int>) >= sizeof(int),
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"atomic<int> must be aligned to at least its size" );
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static_assert( alignof(std::atomic<long>) >= sizeof(long),
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"atomic<long> must be aligned to at least its size" );
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static_assert( alignof(std::atomic<long long>) >= sizeof(long long),
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"atomic<long long> must be aligned to at least its size" );
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