std::promise::swap (3) Linux Manual Page

std::promise<R>::swap – std::promise<R>::swap

Synopsis

void swap(promise &other) noexcept;
(since C++ 11)

Exchanges the shared states of two promise objects.

Parameters

other – the promise to swap with

Return value

(none)

Example

 This section is incomplete
 Reason: no example

See also

std::swap(std::promise) specializes the std::swap algorithm
                        (function template)
(C++11)