33 lines
1023 B
C++
33 lines
1023 B
C++
// { dg-do run { target c++11 } }
|
|
// { dg-require-thread-fence "" }
|
|
|
|
// Copyright (C) 2008-2019 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/>.
|
|
|
|
#include <atomic>
|
|
|
|
int main()
|
|
{
|
|
using namespace std;
|
|
atomic_flag af = ATOMIC_FLAG_INIT;
|
|
|
|
if (!af.test_and_set(memory_order_acquire))
|
|
af.clear(memory_order_release);
|
|
|
|
return 0;
|
|
}
|