27 Input/output library [input.output]

27.7 Formatting and manipulators [iostream.format]

27.7.4 Input streams [input.streams]

27.7.4.6 Class template basic_­iostream [iostreamclass]

27.7.4.6.3 Assignment and swap [iostream.assign]

basic_iostream& operator=(basic_iostream&& rhs);
Effects: As if by swap(rhs).
void swap(basic_iostream& rhs);
Effects: Calls basic_­istream<charT, traits>::swap(rhs).