std::swap(std::queue)

template< class T, class Container >
void swap( queue<T,Container>& lhs, 
           queue<T,Container>& rhs );

(until C++17)

template< class T, class Container >
void swap( queue<T,Container>& lhs, 
           queue<T,Container>& rhs ) noexcept(/* see below */);

(since C++17)

Specializes the std::swap algorithm for std::queue. Swaps the contents of lhs and rhs. Calls lhs.swap(rhs).

This overload only participates in overload resolution if std::is_swappable<Container>::value is true.

(since C++17)

lhs, rhs

containers whose contents to swap

(none).

Same as swapping the underlying container.

noexcept specification:

noexcept(noexcept(lhs.swap(rhs)))

(since C++17)