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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 shared_lock;
// explicit operator bool() const;
#include <boost/thread/lock_types.hpp>
#include <boost/thread/shared_mutex.hpp>
#include <boost/detail/lightweight_test.hpp>
boost::shared_mutex m;
int main()
{
boost::shared_lock < boost::shared_mutex > lk0;
BOOST_TEST(bool(lk0) == false);
boost::shared_lock < boost::shared_mutex > lk1(m);
BOOST_TEST(bool(lk1) == true);
lk1.unlock();
BOOST_TEST(bool(lk1) == false);
return boost::report_errors();
}