std::future::share
From cppreference.com
| std::shared_future<T> share();
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Transfers the shared state of *this 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.
The behavior is undefined if valid()== false before the call to this function.
Contents |
[edit] Parameters
(none)
[edit] Return value
A std::shared_future object containing the shared state previously held by *this
[edit] Notes
The implementations are encouraged to detect the case when valid == false before the call and throw a future_error with an error condition of future_errc::no_state.
[edit] Example
| This section is incomplete Reason: no example |
[edit] See also
| (C++11)
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waits for a value (possibly referenced by other futures) that is set asynchronously (class template) |