| // Copyright (C) 2010 Vicente Botet |
| // |
| // 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) |
| |
| #define BOOST_THREAD_VERSION 2 |
| |
| #include <boost/thread/thread_only.hpp> |
| #include <boost/thread/future.hpp> |
| |
| int calculate_the_answer_to_life_the_universe_and_everything() |
| { |
| return 42; |
| } |
| |
| int main() { |
| boost::packaged_task<int> pt(calculate_the_answer_to_life_the_universe_and_everything); |
| |
| //boost::unique_future<int> fi = BOOST_THREAD_MAKE_RV_REF(pt.get_future()); |
| boost::unique_future<int> fi((BOOST_THREAD_MAKE_RV_REF(pt.get_future()))); |
| |
| boost::thread task(boost::move(pt)); // launch task on a thread |
| |
| fi.wait(); // wait for it to finish |
| |
| //assert(fi.is_ready()); |
| //assert(fi.has_value()); |
| //assert(!fi.has_exception()); |
| //assert(fi.get_state()==boost::future_state::ready); |
| //assert(fi.get()==42); |
| } |