Function make_ready_future

extern/boost/boost/thread/future.hpp:4364–4369

  template <class T>
#endif
  BOOST_THREAD_FUTURE<typename detail::deduced_type<T>::type> make_ready_future(BOOST_THREAD_FWD_REF(T) value) {
    typedef typename detail::deduced_type<T>::type future_value_type;
    promise<future_value_type> p;
    p.set_value(boost::forward<T>(value));
    return BOOST_THREAD_MAKE_RV_REF(p.get_future());
  }

  // explicit overloads
  template <class T>