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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Copyright (C) 2011 Vicente J. Botet Escriba
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
// <boost/thread/locks.hpp>
// template <class Mutex> class upgrade_lock;
// void swap(upgrade_lock& u);
#include <boost/thread/locks.hpp>
#include <boost/detail/lightweight_test.hpp>
struct shared_mutex
{
void lock_upgrade()
{
}
void unlock_upgrade()
{
}
};
shared_mutex m;
int main()
{
boost::upgrade_lock<shared_mutex> lk1(m);
boost::upgrade_lock<shared_mutex> lk2;
lk1.swap(lk2);
BOOST_TEST(lk1.mutex() == 0);
BOOST_TEST(lk1.owns_lock() == false);
BOOST_TEST(lk2.mutex() == &m);
BOOST_TEST(lk2.owns_lock() == true);
return boost::report_errors();
}
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