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// { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* mips-sgi-irix6* powerpc-ibm-aix* } }

// { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* mips-sgi-irix6* powerpc-ibm-aix* } }

// { dg-options " -std=gnu++0x -pthreads" { target *-*-solaris* } }

// { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } }

// { dg-require-cstdint "" }

// { dg-require-gthreads "" }

// Copyright (C) 2008, 2009, 2010, 2011, 2012 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 <system_error>

#include <testsuite_hooks.h>

struct user_lock

{

  user_lock() : is_locked(false) { }

  ~user_lock() = default;

  user_lock(const user_lock&) = default;

  void lock()

  {

    bool test __attribute__((unused)) = true;

    VERIFY( !is_locked );

    is_locked = true;

  }

  bool try_lock()

  { return is_locked ? false : (is_locked = true); }

  void unlock()

  {

    bool test __attribute__((unused)) = true;

    VERIFY( is_locked );

    is_locked = false;

  }

private:

  bool is_locked;

};

int main()

{

  bool test __attribute__((unused)) = true;

  try

    {

      std::mutex m1;

      std::recursive_mutex m2;

      user_lock m3;

      try

        {

          //heterogeneous types

          int result = std::try_lock(m1, m2, m3);

          VERIFY( result == -1 );

          m1.unlock();

          m2.unlock();

          m3.unlock();

        }

      catch (const std::system_error& e)

        {

          VERIFY( false );

        }

    }

  catch (const std::system_error& e)

    {

      VERIFY( false );

    }

  catch (...)

    {

      VERIFY( false );

    }

  return 0;

}