Simplify range-op shift mask generation

[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 30_threads / call_once / once_flag.cc

// { dg-do compile { target c++11 } }

// Copyright (C) 2008-2024 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 <mutex>
#include <testsuite_common_types.h>

void test01()
{
  static_assert( std::is_default_constructible<std::once_flag>::value, "");

  std::once_flag once_flag;
}

void test02()
{
  __gnu_test::constexpr_default_constructible test;
  test.operator()<std::once_flag>();
}