Imported Upstream version 1.57.0
[platform/upstream/boost.git] / libs / thread / test / sync / mutual_exclusion / locks / unique_lock / cons / defer_lock_pass.cpp
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 // unique_lock(mutex_type& m, adopt_lock_t);
20
21 #include <boost/thread/lock_types.hpp>
22 #include <boost/thread/mutex.hpp>
23 #include <boost/detail/lightweight_test.hpp>
24
25 int main()
26 {
27   boost::mutex m;
28   boost::unique_lock<boost::mutex> lk(m, boost::defer_lock);
29   BOOST_TEST(lk.mutex() == &m);
30   BOOST_TEST(lk.owns_lock() == false);
31
32   return boost::report_errors();
33 }
34