std::future - cppreference.com
Mar 12, 2024 · The class template std::future provides a mechanism to access the result of asynchronous operations: . An asynchronous operation (created via std::async, …
std::async - cppreference.com
Oct 28, 2024 · Lazy evaluation is performed: . The first call to a non-timed wait function on the std::future that std::async returned to the caller will evaluate INVOKE (std:: move (g), std:: …
std::future<T>::future - cppreference.com
Oct 22, 2023 · Constructs a std::future with the shared state of other using move semantics. After construction, other ...
std::future<T>::get - cppreference.com
Feb 22, 2024 · The get member function waits (by calling wait()) until the shared state is ready, then retrieves the value stored in the shared state (if any).
std::future<T>:: wait_for - Reference
Aug 27, 2021 · If the future is the result of a call to std::async that used lazy evaluation, this function returns immediately without waiting. This function may block for longer than …
std::shared_future<T>::shared_future - cppreference.com
2) Constructs a shared future that refers to the same shared state, if any, as other. 3,4) Transfers the shared state held by other to * this . After the construction, other. valid ( ) == false , and …
std::future_errc - cppreference.com
Mar 19, 2025 · future_already_retrieved: the contents of shared state were already accessed through std::future: promise_already_satisfied: attempt to store a value in the shared state …
std::experimental::future - cppreference.com
Oct 9, 2023 · an unwrapping constructor from future<future<T>>; a member function is_ready to query whether the associated shared state is ready; and a member function then to attach a …
std::future<T>::wait - cppreference.com
Aug 27, 2021 · waits for the result, returns if it is not available until specified time point has been reached (public member function)
std::packaged_task<R(Args...)>:: get_future - Reference
Aug 24, 2021 · A future which shares the same shared state as * this. Exceptions. std:: ...