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>.
| addr | - | underlying address to import |
A std::coroutine_handle<Promise> whose underlying address is addr.
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.
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(C++20) | constructs a coroutine_handle object (public member function) |
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[static] (C++20) | creates a coroutine_handle from the promise object of a coroutine (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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