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[thirdparty/gcc.git] / libstdc++-v3 / testsuite / 30_threads / shared_mutex / try_lock / 1.cc

// { dg-do run { target c++17 } }
// { dg-additional-options "-pthread" { target pthread } }
// { dg-require-gthreads "" }

// Copyright (C) 2015-2024 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 <shared_mutex>
#include <system_error>
#include <testsuite_hooks.h>

int main()
{
  typedef std::shared_mutex mutex_type;

  try
    {
      mutex_type m;
      bool b = m.try_lock();
      VERIFY( b );
      m.unlock();
    }
  catch (const std::system_error& e)
    {
      VERIFY( false );
    }
  catch (...)
    {
      VERIFY( false );
    }

  return 0;
}