std::future - cppreference.com
2024年3月12日 · The class template std::future provides a mechanism to access the result of asynchronous operations: An asynchronous operation (created via std::async, …
What is a Future and how do I use it? - Stack Overflow
2020年7月21日 · 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::future<T>::get - cppreference.com
2024年2月22日 · 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 …
std::future<T>::wait_for - cppreference.com
2021年8月27日 · 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 …
Pandas replace and downcasting deprecation since version 2.2.0
2024年11月26日 · To opt-in to the future behavior, set `pd.set_option('future.no_silent_downcasting', True)` 0 1 1 0 2 2 3 1 dtype: int64 If I understand …
std::future<T>::wait_until - cppreference.com
2020年8月2日 · wait_until waits for a result to become available. It blocks until specified timeout_time has been reached or the result becomes available, whichever comes first. The …
std::shared_future - cppreference.com
2023年10月23日 · 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 …
c++ - std::future in simple words? - Stack Overflow
2021年12月28日 · A std::future<T> is a handle to a result of work which is [potentially] not, yet, computed. You can imagine it as the receipt you get when you ask for work and the receipt is …
std::future_status - cppreference.com
2025年3月19日 · Specifies state of a future as returned by wait_for and wait_until functions of std::future and std::shared_future. Constants
c++ - Futures vs. Promises - Stack Overflow
2012年9月27日 · Future and Promise are the two separate sides of an asynchronous operation. std::promise is used by the "producer/writer" of the asynchronous operation. std::future is used …