summaryrefslogtreecommitdiff
path: root/libstdc++-v3/testsuite/29_atomics/atomic_flag/test_and_set/explicit.c
blob: d52da44d694bd34613df3f9e45d7ffd0aa955ecb (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
// { dg-options "-x c -shared-libgcc -lstdc++" }

// Copyright (C) 2008, 2009 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 <stdatomic.h>

int main()
{
  atomic_flag af = ATOMIC_FLAG_INIT;

  if (!atomic_flag_test_and_set_explicit(&af, memory_order_acquire))
    atomic_flag_clear_explicit(&af, memory_order_release);

  return 0;
}