58 lines
1.4 KiB
C++
58 lines
1.4 KiB
C++
// Copyright (C) 2017-2018 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();
|
|
}
|