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58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
// Copyright (C) 2017-2019 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 run { target c++11 } }
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// { dg-require-atomic-builtins "" }
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#include <atomic>
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#include <testsuite_hooks.h>
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struct NonDefaultConstructible
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{
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NonDefaultConstructible(int i) : val(i) { }
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int val;
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};
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template class std::atomic<NonDefaultConstructible>;
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void
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test01()
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{
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std::atomic<NonDefaultConstructible> a(1);
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const auto n1 = a.exchange(2);
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VERIFY( n1.val == 1 );
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const auto n2 = a.load();
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VERIFY( n2.val == 2 );
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}
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void
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test02()
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{
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volatile std::atomic<NonDefaultConstructible> a(1);
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const auto n1 = a.exchange(2);
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VERIFY( n1.val == 1 );
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const auto n2 = a.load();
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VERIFY( n2.val == 2 );
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}
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int
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main()
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{
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test01();
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test02();
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}
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