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

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

// { 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 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 <functional> // std::unary_function, std::ref

#include <thread>

#include <system_error>

#include <testsuite_hooks.h>

struct copyable : public std::unary_function<std::thread::id&, void>

{

  copyable() = default;

  ~copyable() = default;

  copyable(const copyable& c)

  { ++copy_count; }

  void operator()(std::thread::id& id) const

  {

    id = std::this_thread::get_id();

  }

  static int copy_count;

};

int copyable::copy_count = 0;

// same as 2, but function is copyable function object

// thread variadic cons not copied when std::ref

// thread variadic cons copied when not std::ref

// no errors

void test03()

{

  bool test __attribute__((unused)) = true;

  try

    {

      std::thread::id t1_id1;

      copyable c1;

      std::thread t1(std::ref(c1), std::ref(t1_id1));

      std::thread::id t1_id2 = t1.get_id();

      VERIFY( t1.joinable() );

      t1.join();

      VERIFY( !t1.joinable() );

      VERIFY( t1_id1 == t1_id2 );

      VERIFY( copyable::copy_count == 0 );

      std::thread::id t2_id1;

      copyable c2;

      std::thread t2(c2, std::ref(t2_id1));

      std::thread::id t2_id2 = t2.get_id();

      VERIFY( t2.joinable() );

      t2.join();

      VERIFY( !t2.joinable() );

      VERIFY( t2_id1 == t2_id2 );

      VERIFY( copyable::copy_count > 0 );

    }

  catch (const std::system_error&)

    {

      VERIFY( false );

    }

  catch (...)

    {

      VERIFY( false );

    }

}

int main()

{

  test03();

  return 0;

}