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- std::future - cppreference. com
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 methods to query, wait for, or extract a value from the std
- std::shared_future - cppreference. com
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 objects may refer to the same shared state Access to the same shared state from multiple threads is safe if each thread does it through its own copy of a shared_future object
- What is __future__ in Python used for and how when to use it, and how . . .
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 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
- std::packaged_task lt;R (Args. . . ) gt;::get_future - cppreference. com
Returns a future which shares the same shared state as *this get_future can be called only once for each packaged_task Parameters (none) Return value A future which shares the same shared state as *this Exceptions std::future_error on the following error conditions: The shared state has already been retrieved via a call to get_future
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