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`std::promise::get_future` Member function

Retrieve a std::future instance for the asynchronous result associated with *this.

std::future<ResultType> get_future();

Preconditions:: *this has an associated asynchronous result.
Returns:: A std::future instance for the asynchronous result associated with *this.
Throws:: An exception of type std::future_error with an error code of std::future_errc::future_already_retrieved if a std::future has already been obtained for this asynchronous result through a prior call to get_future().

Header

#include <future>

See Also