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// 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);

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