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::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). Right after calling this function, valid …
What is a Future and how do I use it? - Stack Overflow
Jul 21, 2020 · A future represents the result of an asynchronous operation, and can have two states: uncompleted or completed. Most likely, as you aren't doing this just for fun, you actually …
std::shared_future<T>::shared_future - cppreference.com
1) Default constructor. Constructs an empty shared future, that doesn't refer to a shared state, that is valid() == false. 2) Constructs a shared future that refers to the same shared state, if …
std::future<T>::future - cppreference.com
Oct 22, 2023 · 2) Move constructor. Constructs a std::future with the shared state of other using move semantics. After construction, other.valid() == false.
Cannot build CMake project because "Compatibility with CMake
Mar 25, 2025 · In this case it does work. In general, it probably doesn't. I'm wondering how this break in backwards compatibility should in general be navigated. Perhaps installing a previous …
std::future<T>::wait_for - cppreference.com
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:: async - cppreference.com
Oct 28, 2024 · The function template std::async runs the function f asynchronously (potentially in a separate thread which might be a part of a thread pool) and returns a std::future that will …
std::future<T>::wait - cppreference.com
Aug 27, 2021 · Blocks until the result becomes available. valid() == true after the call. The behavior is undefined if valid() == false before the call to this function.
std::future<T>::valid - cppreference.com
Aug 27, 2021 · Checks if the future refers to a shared state. This is the case only for futures that were not default-constructed or moved from (i.e. returned by std::promise::get_future (), …