// Copyright (C) 2014 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 4 #include struct foo { foo(int i_): i(i_) {} int i; }; int main() { boost::promise p; const foo f(42); p.set_value(f); // Clearly a const future ref isn't much use, but I needed to // prove the problem wasn't me trying to copy a unique_future const boost::future& fut = boost::make_ready_future( foo(42) ); return 0; }