1// Copyright (C) 2014-2015 Free Software Foundation, Inc.
2//
3// This file is part of the GNU ISO C++ Library.  This library is free
4// software; you can redistribute it and/or modify it under the
5// terms of the GNU General Public License as published by the
6// Free Software Foundation; either version 3, or (at your option)
7// any later version.
8
9// This library is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12// GNU General Public License for more details.
13
14// You should have received a copy of the GNU General Public License along
15// with this library; see the file COPYING3.  If not see
16// <http://www.gnu.org/licenses/>.
17
18// { dg-options "-std=gnu++11" }
19// { dg-require-gthreads "" }
20
21#include <memory>
22
23int main()
24{
25  using test_type = std::__shared_ptr<int, std::_S_single>;
26  bool test __attribute__ ((unused)) = false;
27  constexpr auto mo = std::memory_order_seq_cst;
28  const test_type p;
29  test = std::atomic_is_lock_free(&p);
30  test_type p2 = std::atomic_load(&p);
31  test_type p3 = std::atomic_load_explicit(&p, mo);
32  std::atomic_store(&p2, p);
33  std::atomic_store_explicit(&p2, p, mo);
34  test_type p4 = std::atomic_exchange(&p2, p);
35  p4 = std::atomic_exchange_explicit(&p2, p, mo);
36  test = std::atomic_compare_exchange_weak(&p2, &p3, p);
37  test = std::atomic_compare_exchange_strong(&p2, &p3, p);
38  test = std::atomic_compare_exchange_weak_explicit(&p2, &p3, p, mo, mo);
39  test = std::atomic_compare_exchange_strong_explicit(&p2, &p3, p, mo, mo);
40}
41