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/future.hpp>
16 
17 // class promise<R>
18 
19 // promise();
20 
21 #define BOOST_THREAD_VERSION 3
22 
23 #include <boost/thread/future.hpp>
24 #include <boost/detail/lightweight_test.hpp>
25 
main()26 int main()
27 {
28 
29   {
30       boost::promise<int> p;
31       boost::future<int> f = BOOST_THREAD_MAKE_RV_REF(p.get_future());
32       BOOST_TEST(f.valid());
33   }
34   {
35       boost::promise<int&> p;
36       boost::future<int&> f = BOOST_THREAD_MAKE_RV_REF(p.get_future());
37       BOOST_TEST(f.valid());
38   }
39   {
40       boost::promise<void> p;
41       boost::future<void> f = BOOST_THREAD_MAKE_RV_REF(p.get_future());
42       BOOST_TEST(f.valid());
43   }
44 
45   return boost::report_errors();
46 }
47 
48