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Bookmark or Share- std::future<T>::wait - cppreference.comfuture::valid. future::wait. future::wait_for. future::wait_until. void wait() const; (since C++11) 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.com1) Base template. 2) Non-void specialization, used to communicate objects between threads. 3) void specialization, used to communicate stateless events. The class template std::promise provides a facility to store a value or an exception that is later acquired asynchronously via a std::future object created by the std::promise object.
- What is __future__ in Python used for and how/when to use it, and how ...The future statement is intended to ease migration to future versions of Python that introduce incompatible changes to the language. It allows use of the new features on a per-module basis before the release in which the feature becomes standard. If you actually want to import the __future__ module, just do.
- std::future - cppreference.comfuture. 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, or std::promise) can provide a std::future object to the creator of that asynchronous operation. The creator of the asynchronous operation can then use a variety of ...
- std::async - cppreference.comLazy 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:: move (xyz)) in the thread that called the waiting function (which does not have to be the thread that originally called std::async), where
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