std:: future_status

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Defined in header `<future>`
enum class future_status { ready, timeout, deferred } ;		(since C++11)

Specifies state of a future as returned by wait_for and wait_until functions of std::future and std::shared_future .

Constants

Name	Explanation
`deferred`	the shared state contains a deferred function, so the result will be computed only when explicitly requested
`ready`	the shared state is ready
`timeout`	the shared state did not become ready before specified timeout duration has passed

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std:: future_status

Constants

See also

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wait_for	waits for the result, returns if it is not available for the specified timeout duration (public member function of `std::future<T>` )
wait_for	waits for the result, returns if it is not available for the specified timeout duration (public member function of `std::shared_future<T>` )
wait_until	waits for the result, returns if it is not available until specified time point has been reached (public member function of `std::future<T>` )
wait_until	waits for the result, returns if it is not available until specified time point has been reached (public member function of `std::shared_future<T>` )