std::set::swap

From cppreference.com
void swap( set& other );

Exchanges the contents of the container with those of other. All iterators and references remain valid.

Contents

[edit] Parameters

other - container to exchange the contents with

[edit] Return value

(none)

[edit] Exceptions

noexcept specification:  
noexcept
  (since C++11)

[edit] Complexity

Constant

[edit] See also

specializes the std::swap algorithm
(function template)