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// { dg-do run }
// { dg-options "-pthread" }
// { dg-require-effective-target c++11 }
// { dg-require-effective-target pthread }
// { dg-require-gthreads "" }
// Copyright (C) 2008-2019 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()
{
VERIFY( !is_locked );
is_locked = true;
}
bool try_lock()
{ return is_locked ? false : (is_locked = true); }
void unlock()
{
VERIFY( is_locked );
is_locked = false;
}
private:
bool is_locked;
};
int main()
{
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;
}
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