std::experimental::make_exceptional_future
From cppreference.com
< cpp | experimental
| Defined in header <experimental/future>
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| template< class T > future<T> make_exceptional_future( std::exception_ptr ex ); |
(1) | (concurrency TS) |
| template< class T, class E > future<T> make_exceptional_future( E ex ); |
(2) | (concurrency TS) |
1) Creates a shared state of type
T that is immediately ready and stores the exception pointer ex, then return a future associated with that shared state, as if by promise<T> p; p.set_exception(ex); return p.get_future();. The behavior is undefined if ex is null.2) Creates a shared state of type
T that is immediately ready and stores an exception pointer created from ex, then return a future associated with that shared state, as if by promise<T> p; p.set_exception(std::make_exception_ptr(ex)); return p.get_future();.Return value
A future object associated with the shared state that was created.
See also
| (concurrency TS) |
produces a future that is ready immediately and holds the given value (function template) |