std::experimental::make_exceptional_future - cppreference.com (original) (raw)

Defined in header <experimental/future>
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();.

[edit] Return value

A future object associated with the shared state that was created.

[edit] See also

| | produces a future that is ready immediately and holds the given value (function template) [edit] | | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |