std::swap(std::stack)

From cppreference.com
< cpp‎ | container‎ | stack

template< class T, class Container >

void swap( stack<T,Container>& lhs,

           stack<T,Container>& rhs );
(until C++17)
template< class T, class Container >

void swap( stack<T,Container>& lhs,

           stack<T,Container>& rhs ) noexcept(/* see below */);
(since C++17)

Specializes the std::swap algorithm for std::stack. 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)

Parameters

lhs, rhs - containers whose contents to swap

Return value

(none)

Complexity

Same as swapping the underlying container.

Exceptions

noexcept specification:  
noexcept(noexcept(lhs.swap(rhs)))
(since C++17)

See also

swaps the contents
(public member function)