std::coroutine_handle<Promise>::coroutine_handle
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(1) | (since C++20) |
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(2) | (since C++20) |
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(3) | (since C++20) |
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(4) | (since C++20) |
Creates a coroutine_handle that does not refer a coroutine, or copies a coroutine_handle.
1,2) Initializes the underlying address
ptr to nullptr. After construction, address() returns nullptr, and the coroutine_handle does not refer a coroutine. These constructors are not declared for the specialization std::coroutine_handle<std::noop_coroutine_promise>.
3,4) Copies the underlying address. The copy constructor and move constructor are equivalent to implicitly declared ones.
Parameters
| other | - | another coroutine_handle to copy |
Notes
std::coroutine_handle<std::noop_coroutine_promise> is neither default constructible nor constructible from std::nullptr_t. std::noop_coroutine can be used to create a new std::coroutine_handle<std::noop_coroutine_promise>.
Static member functions from_promise and from_address can also create a coroutine_handle.
See also
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[static] (C++20)
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creates a coroutine_handle from the promise object of a coroutine (public static member function) |
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[static] (C++20)
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imports a coroutine from a pointer (public static member function) |
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(C++20)
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creates a coroutine handle that has no observable effects when resumed or destroyed (function) |
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