std::coroutine_handle<Promise>::from_address

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std::coroutine_handle
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coroutine_handle::from_address
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static constexpr coroutine_handle from_address( void *addr );
 (since 哋它亢++20)

Creates a coroutine_handle from a null pointer value or an underlying address of another coroutine_handle. The underlying address of return value is addr.

The behavior is undefined if addr is neither a null pointer value nor an underlying address of a coroutine_handle. The behavior is also undefined if the addr is an underlying address of a std::coroutine_handle<P1>, where both Promise and P1 are not void, and P1 is different from Promise.

This function is not declared for specialization std::coroutine_handle<std::noop_coroutine_promise>.

Parameters

addr - underlying address to import

Return value

A std::coroutine_handle<Promise> whose underlying address is addr.

Notes

If addr is not a null pointer value, it must be obtained from a prior call to address() on a coroutine_handle referring to some coroutine.

Example

This section is incomplete
Reason: no example

See also

(哋它亢++20)
 constructs a coroutine_handle object
(public member function)
[static] (哋它亢++20)
 creates a coroutine_handle from the promise object of a coroutine
(public static member function)
(哋它亢++20)
 creates a coroutine handle that has no observable effects when resumed or destroyed
(function)
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