std::coroutine_handle::from_promise - cppreference.com (original) (raw)

| static coroutine_handle from_promise( Promise& p ); | | (since C++20) | | ----------------------------------------------------- | | ------------- |

Creates a coroutine_handle from the promise object of a coroutine. The created coroutine_handle refers the coroutine, and promise() returns a reference to p.

The behavior is undefined if p is not a reference to a promise object. This function is only provided for the primary template, i.e. specializations std::coroutine_handle<> and std::coroutine_handle<std::noop_coroutine_promise> do not have this function.

[edit] Parameters

[edit] Return value

A coroutine_handle referring the given coroutine.

[edit] Example

[edit] See also

| | constructs a coroutine_handle object (public member function) [edit] | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | imports a coroutine from a pointer (public static member function) [edit] | | | creates a coroutine handle that has no observable effects when resumed or destroyed (function) [edit] |