std::swap(std::promise)
Defined in header <future> | ||
|---|---|---|
template< class R > void swap( promise<R> &lhs, promise<R> &rhs ) noexcept; | (since C++11) |
Specializes the std::swap algorithm for std::promise. Exchanges the shared state of lhs with that of rhs. Effectively calls lhs.swap(rhs).
Parameters
| lhs, rhs | - | promises whose states to swap |
Return value
(none).
Example
See also
| swaps two promise objects (public member function) |
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/thread/promise/swap2