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std::coroutine_handle<Promise>::done

From cppreference.com
 
 
Utilities library
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Coroutine support
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Member of other specializations
bool done() const;
(1) (since C++20)
Member of specialization std::coroutine_handle<std::noop_coroutine_promise>
constexpr bool done() const noexcept;
(2) (since C++20)

Checks if a suspended coroutine is suspended at its final suspended point.

1) Returns true if the coroutine to which *this refers is suspended at its final suspend point, or false if the coroutine is suspended at other suspend points. The behavior is undefined if *this does not refer to a suspended coroutine.
2) Always returns false.

Contents

[edit] Parameters

(none)

[edit] Return value

1) true if the coroutine is suspended at its final suspend point, false if the coroutine is suspended at other suspend points.
2) false

[edit] Notes

A no-op coroutine is always considered not suspended at its final suspended point.

[edit] Example