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, …

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).

Oct 22, 2023 · Constructs a std::future with the shared state of other using move semantics. After construction, other. valid ( ) == false . 3) std::future is not CopyConstructible .

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:: …

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 …

Aug 27, 2021 · atomic_compare_exchange_weak atomic_compare_exchange_weak_explicit atomic_compare_exchange_strong atomic_compare_exchange_strong_explicit

Aug 27, 2021 · It is valid to move from a future object for which valid() is false. Contents . 1 Parameters; 2 Return value;

Oct 23, 2023 · Unlike std::future, which is only moveable (so only one instance can refer to any particular asynchronous result), std::shared_future is copyable and multiple shared future …

Nov 27, 2023 · waits for a value (possibly referenced by other futures) that is set asynchronously (class template)

Jan 26, 2013 · Future vs Promise. Future and Promise are proxy object for unknown result. Promise completes a Future. Promise - write/producer of unknown result. Future - …