std::multimap<Key,T,Compare,Allocator>::swap (3) - Linux Man Pages

std::multimap<Key,T,Compare,Allocator>::swap: std::multimap<Key,T,Compare,Allocator>::swap

NAME

std::multimap<Key,T,Compare,Allocator>::swap - std::multimap<Key,T,Compare,Allocator>::swap

Synopsis


void swap( multimap& other ); (until C++17)
void swap( multimap& other ) noexcept(/* see below */); (since C++17)


Exchanges the contents of the container with those of other. Does not invoke any move, copy, or swap operations on individual elements.
All iterators and references remain valid. The past-the-end iterator is invalidated.
The Pred objects must be Swappable, and they are exchanged using unqualified call to non-member swap.


If std::allocator_traits<allocator_type>::propagate_on_container_swap::value is true, then the allocators are exchanged using an unqualified call to non-member swap. Otherwise, they are not swapped (and if get_allocator() != other.get_allocator(), the behavior is undefined). (since C++11)

Parameters


other - container to exchange the contents with

Return value


(none)

Exceptions


Any exception thrown by the swap of the Compare objects. (until C++17)
noexcept specification:
noexcept(std::allocator_traits<Allocator>::is_always_equal::value (since C++17)
&& std::is_nothrow_swappable<Compare>::value)

Complexity


Constant.

See also


                         specializes the std::swap algorithm
std::swap(std::multimap) (function template)