std::basic_iostream::swap

From cppreference.com
< cpplrm; | iolrm; | basic iostream
protected:
void swap( basic_iostream& other );
(since C++11)

Exchanges the state with another input/output stream object. Effectively calls basic_istream<CharT,Traits>::swap(other).

This member function is protected: it is called by the swap member functions of the derived stream classes std::basic_stringstream and std::basic_fstream, which know how to correctly swap the associated stream buffers.


Parameters

other - another stream to exchange the state with

Return value

*this