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]

27.7.4.6.1 basic_iostream constructors [iostream.cons]

explicit basic_iostream(basic_streambuf<charT, traits>* sb);

Effects: Constructs an object of class basic_iostream, initializing the base class subobjects with basic_istream<charT, traits>(sb) and basic_ostream<charT, traits>(sb).

Ensures: rdbuf() == sb and gcount() == 0.

basic_iostream(basic_iostream&& rhs);

Effects: Move constructs from the rvalue rhs by constructing the basic_istream base class with move(rhs).