Transfers the shared state of *this, if any, to a std::shared_future object. Multiple std::shared_future objects may reference the same shared state, which is not possible with std::future.
After calling share on a std::future, valid() == false.
(none)
[edit] Return valueA std::shared_future object containing the shared state previously held by *this, if any, constructed as if by std::shared_future<T>(std::move(*this)).
[edit] Example [edit] Defect reportsThe following behavior-changing defect reports were applied retroactively to previously published C++ standards.
DR Applied to Behavior as published Correct behavior LWG 2556 C++11share() requires valid() to be true requirement removed and made noexcept [edit] See also waits for a value (possibly referenced by other futures) that is set asynchronously
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