安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
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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
- 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
- std::future lt;T gt;:: future - en. cppreference. com
Constructs a std::future with the shared state of other using move semantics After construction, other valid ( ) == false 3) std::future is not CopyConstructible
- Standard library header lt;future gt; (C++11) - cppreference. com
waits for a value (possibly referenced by other futures) that is set asynchronously (class template)
- java - Difference between CompletableFuture, Future and RxJavas . . .
Once the operation finishes, the Future will contain that result For example, an operation can be a Runnable or Callable instance that is submitted to an ExecutorService The submitter of the operation can use the Future object to check whether the operation isDone(), or wait for it to finish using the blocking get() method Example:
- What does Future. cancel () do if not interrupting?
If it is not interrupting it will simply tell the future that is is cancelled You can check that via isCancelled() but nothing happens if you don't check that manually Below example code shows how you could do it
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