std::promise<R>::~promise
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std::promise
Member functions
promise::~promise
Getting the result
Setting the result
Non-member Functions
Helper Classes
~promise();
(since C++11)
Abandons the shared state:
- if the shared state is ready, releases it.
- if the shared state is not ready, stores an exception object of type std::future_error with an error condition std::future_errc::broken_promise , makes the shared state ready and releases it.