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// Copyright (C) 2017-2022 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/>.
// { dg-do run { target c++11 } }
// { dg-require-atomic-builtins "" }
#include <atomic>
#include <testsuite_hooks.h>
struct NonDefaultConstructible
{
NonDefaultConstructible(int i) : val(i) { }
int val;
};
template class std::atomic<NonDefaultConstructible>;
void
test01()
{
std::atomic<NonDefaultConstructible> a(1);
const auto n1 = a.exchange(2);
VERIFY( n1.val == 1 );
const auto n2 = a.load();
VERIFY( n2.val == 2 );
}
void
test02()
{
volatile std::atomic<NonDefaultConstructible> a(1);
const auto n1 = a.exchange(2);
VERIFY( n1.val == 1 );
const auto n2 = a.load();
VERIFY( n2.val == 2 );
}
int
main()
{
test01();
test02();
}