| //===----------------------------------------------------------------------===// |
| // |
| // 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; |
| |
| // 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::upgrade_lock < boost::shared_mutex > lk0; |
| BOOST_TEST(bool(lk0) == false); |
| boost::upgrade_lock < boost::shared_mutex > lk1(m); |
| BOOST_TEST(bool(lk1) == true); |
| lk1.unlock(); |
| BOOST_TEST(bool(lk1) == false); |
| |
| return boost::report_errors(); |
| } |
| |