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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>

typedef std::unique_lock<std::mutex> lock_type;

void test01()

{

  bool test __attribute__((unused)) = true;

  try

    {

      std::mutex m1, m2, m3;

      lock_type l1(m1);

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

      VERIFY( result == 0 );

      VERIFY( l1.owns_lock() );

      lock_type l2(m2);

      lock_type l3(m3);

    }

  catch (const std::system_error& e)

    {

      VERIFY( false );

    }

  catch (...)

    {

      VERIFY( false );

    }

}

void test02()

{

  bool test __attribute__((unused)) = true;

  try

    {

      std::mutex m1, m2, m3;

      lock_type l2(m2);

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

      VERIFY( result == 1 );

      VERIFY( l2.owns_lock() );

      lock_type l1(m1);

      lock_type l3(m3);

    }

  catch (const std::system_error& e)

    {

      VERIFY( false );

    }

  catch (...)

    {

      VERIFY( false );

    }

}

void test03()

{

  bool test __attribute__((unused)) = true;

  try

    {

      std::mutex m1, m2, m3;

      lock_type l3(m3);

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

      VERIFY( result == 2 );

      VERIFY( l3.owns_lock() );

      lock_type l1(m1);

      lock_type l2(m2);

    }

  catch (const std::system_error& e)

    {

      VERIFY( false );

    }

  catch (...)

    {

      VERIFY( false );

    }

}

int main()

{

  test01();

  test02();

  test03();

  return 0;

}