std::coroutine_handle<Promise>::from_address

 

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Coroutine support

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coroutine_traits (C++20)

Coroutine handle

coroutine_handle (C++20)

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noop_coroutine_promise (C++20)

noop_coroutine (C++20)

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generator (C++23)

 

std::coroutine_handle

Member functions

coroutine_handle::coroutine_handle (C++20)

coroutine_handle::operator= (C++20)

coroutine_handle::from_promise (C++20)

Conversion

coroutine_handle::operator coroutine_handle<> (C++20)

Observers

coroutine_handle::done (C++20)

coroutine_handle::operator bool (C++20)

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coroutine_handle::operator()coroutine_handle::resume (C++20)(C++20)

coroutine_handle::destroy (C++20)

Promise access

coroutine_handle::promise (C++20)

Export/import

coroutine_handle::address (C++20)

coroutine_handle::from_address (C++20)

Non-member functions

operator==operator<=> (C++20)(C++20)

Helper classes

std::hash<std::coroutine_handle> (C++20)

 

static constexpr coroutine_handle from_address( void *addr );		(since C++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 values

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.

See also

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