std::map<Key,T,Compare,Allocator>::swap (3) - Linux Manuals

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

Command to display std::map<Key,T,Compare,Allocator>::swap manual in Linux: $ man 3 std::map<Key,T,Compare,Allocator>::swap

NAME

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

Synopsis

void swap( map& other ); (until C++17)
void swap( map& 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.