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, …
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_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 …
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 …
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 …
Standard library header <future> (C++11) - cppreference.com
Nov 27, 2023 · future (const future &) = delete; ~future (); future & operator =(const future &) = delete; future & operator =(future &&) noexcept; shared_future <R> share () noexcept; // retrieving the value …
Can't import annotations from __future__ - Stack Overflow
Oct 19, 2018 · When running the statement from __future__ import annotations I get the following error: Traceback (most recent call last): File "/usr/lib/python3.5/py_compile.py ...
std::async - cppreference.com
Oct 28, 2024 · The return type of std::async is std::future<V>, where V is: ... The call to std::async synchronizes with the call to f, and the completion of f is sequenced before making the shared state …
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) …
std::promise<R>::get_future - cppreference.com
Mar 11, 2024 · Returns a future object associated with the same shared state as *this. An exception is thrown if *this has no shared state or get_future has already been called. To get multiple "pop" ends …