17 Language support library [support]

17.12 Coroutines [support.coroutine]

17.12.5 No-op coroutines [coroutine.noop]

17.12.5.2 Class coroutine_­handle<noop_­coroutine_­promise> [coroutine.handle.noop]

17.12.5.2.2 Resumption [coroutine.handle.noop.resumption]

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constexpr void operator()() const noexcept; constexpr void resume() const noexcept; constexpr void destroy() const noexcept;
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Effects: None.
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Remarks: If noop_­coroutine_­handle is converted to coroutine_­handle<>, calls to operator(), resume and destroy on that handle will also have no observable effects.