NAME¶

std::future::share - std::future::share

Synopsis¶

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.

After calling share on a std::future, valid() == false.

Parameters¶

(none)

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)).

Example¶

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
LWG 2556 C++11 share() requires valid() to be requirement removed and made
true noexcept

See also¶

shared_future waits for a value (possibly referenced by other futures) that is set
(C++11) asynchronously
(class template)