58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
// Copyright (C) 2015-2018 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-do compile { target c++11 } }
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// { dg-require-atomic-builtins "" }
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// { dg-require-cstdint "" }
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#include <atomic>
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#include <cstdint>
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using std::int32_t;
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using std::int64_t;
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// libstdc++/62259
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struct twoints {
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int32_t a;
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int32_t b;
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};
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static_assert( alignof(std::atomic<twoints>) >= alignof(int64_t),
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"std::atomic not suitably aligned" );
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// libstdc++/65147
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struct power_of_two_obj {
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char c [8];
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};
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std::atomic<power_of_two_obj> obj1;
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static_assert( __alignof__(obj1) >= alignof(int64_t),
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"std::atomic not suitably aligned" );
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struct container_struct {
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char c[1];
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std::atomic<power_of_two_obj> ao;
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};
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container_struct obj2;
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static_assert( __alignof__(obj2.ao) >= alignof(int64_t),
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"std::atomic not suitably aligned" );
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