std::experimental::make_exceptional_future (3) - Linux Manuals

std::experimental::make_exceptional_future: std::experimental::make_exceptional_future

NAME

std::experimental::make_exceptional_future - std::experimental::make_exceptional_future

Synopsis

Defined in header <experimental/future>
template < class T > (1) (concurrency TS)
future<T> make_exceptional_future(std::exception_ptr ex);
template < class T, class E > (2) (concurrency TS)
future<T> make_exceptional_future(E ex);

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.