template< class Key, class T, class Compare, class Alloc >
void swap( map<Key,T,Compare,Alloc>& lhs,
map<Key,T,Compare,Alloc>& rhs );
Specializes the std::swap algorithm for std::map. Swaps the contents of lhs and rhs. Calls lhs.swap(rhs).
Parameters
lhs, rhs - containers whose contents to swap
Return value
(none).
Complexity
Constant.
Exceptions noexcept specification: noexcept(noexcept(lhs.swap(rhs))) (since C++17)
See a