std::experimental::shared_future::operator= (3) Linux Manual Page

std::experimental::shared_future<T>::operator= – std::experimental::shared_future<T>::operator=

Synopsis

std::experimental::shared_future<T> &operator=(const std::experimental::shared_future<T> &other);
(1)

    std::experimental::shared_future<T> &
    operator=(std::experimental::shared_future<T> &&other) noexcept;
(2)

Assigns the contents of another std::experimental::shared_future object.
1) Releases any shared state and assigns the contents of other to *this. After the assignment, this->valid() == other.valid().
2) Releases any shared state and move-assigns the contents of other to *this. After the assignment, other.valid() == false and this->valid() will yield the same value as other.valid() before the assignment.

Parameters

other – a std::experimental::shared_future object to assign from

Return value

*this