std::experimental::make_ready_future
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                    < cpp | experimental
                    
                                                            
                    | Defined in header  <experimental/future> | ||
| template < class T > future<V /* see below */> make_ready_future(T&& value); | (1) | (concurrency TS) | 
| future<void> make_ready_future(); | (2) | (concurrency TS) | 
1) If std::decay_t<T> is std::reference_wrapper<X>, then the type 
V is X&, otherwise, V is std::decay_t<T>.
 Creates a shared state of type 
V that is immediately ready, with the result constructed from std::forward<T>(value), then returns a std::experimental::future associated with that shared state.
2) Creates a shared state of type 
void that is immediately ready, then returns a std::experimental::future associated with that shared state.[edit] Return value
A std::experimental::future associated with the shared state that is created.
[edit] See also
| (concurrency TS) | produces a future that is ready immediately and holds the given exception (function template) |