1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // Copyright (C) 2011 Vicente J. Botet Escriba 11 // 12 // Distributed under the Boost Software License, Version 1.0. (See accompanying 13 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 14 15 // <boost/thread/locks.hpp> 16 17 // template <class Mutex> class unique_lock; 18 19 // explicit operator bool() const; 20 21 #include <boost/thread/lock_types.hpp> 22 #include <boost/thread/mutex.hpp> 23 #include <boost/detail/lightweight_test.hpp> 24 25 boost::mutex m; 26 main()27int main() 28 { 29 { 30 boost::unique_lock<boost::mutex> lk0; 31 int i = int(lk0); 32 BOOST_TEST(i == 0); 33 } 34 35 return boost::report_errors(); 36 } 37 38 #include "../../../../../remove_error_code_unused_warning.hpp" 39 40