std::shared_future<T> share() noexcept;
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.
share on a std::future, valid() == false.
 Return value
A 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)).
|This section is incomplete|
Reason: no example
 Defect reports
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
|DR||Applied to||Behavior as published||Correct behavior|
|| requirement removed and made |
 See also
| waits for a value (possibly referenced by other futures) that is set asynchronously |