std::coroutine_handle<Promise>::from_promise
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.
Parameters
| p | - | promise object of a coroutine to refer |
Return value
A coroutine_handle referring the given coroutine.
Example
See also
constructs a coroutine_handle object (public member function) |
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[static] | imports a coroutine from a pointer (public static member function) |
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(C++20) | creates a coroutine handle that has no observable effects when resumed or destroyed (function) |
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