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::packaged_task, …
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 need the …
c++ - std::future in simple words? - Stack Overflow
Dec 28, 2021 · In summary: std::future is an object used in multithreaded programming to receive data or an exception from a different thread; it is one end of a single-use, one-way communication …
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 () is false.
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 timeout_duration due to …
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:: promise - cppreference.com
Oct 23, 2023 · The promise is the "push" end of the promise-future communication channel: the operation that stores a value in the shared state synchronizes-with (as defined in std::memory_order) …
Cannot build CMake project because "Compatibility with CMake < 3.5 …
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 version of …
What is __future__ in Python used for and how/when to use it, and how ...
Mar 2, 2016 · A future statement is a directive to the compiler that a particular module should be compiled using syntax or semantics that will be available in a specified future release of Python. The …
std::future<T>::wait_until - cppreference.com
Aug 2, 2020 · If the future is the result of a call to async that used lazy evaluation, this function returns immediately without waiting. The behavior is undefined if valid () is false before the call to this …