[iostreamclass]
31 Input/output library [input.output]
31.7 Formatting and manipulators [iostream.format]
31.7.5 Input streams [input.streams]
31.7.5.7 Class template basic_iostream [iostreamclass]
31.7.5.7.1 General [iostreamclass.general]
31.7.5.7.2 Constructors [iostream.cons]
31.7.5.7.3 Destructor [iostream.dest]
31.7.5.7.4 Assignment and swap [iostream.assign]
31.7.5.7.1 General [iostreamclass.general]
namespace std { template<class charT, class traits = char_traits<charT>> class basic_iostream : public basic_istream<charT, traits>, public basic_ostream<charT, traits> { public: using char_type = charT; using int_type = traits::int_type; using pos_type = traits::pos_type; using off_type = traits::off_type; using traits_type = traits; explicit basic_iostream(basic_streambuf<charT, traits>* sb); virtual ~basic_iostream(); protected: basic_iostream(const basic_iostream&) = delete; basic_iostream(basic_iostream&& rhs); basic_iostream& operator=(const basic_iostream&) = delete; basic_iostream& operator=(basic_iostream&& rhs); void swap(basic_iostream& rhs); }; }
The class template basic_iostream inherits a number of functions that allow reading input and writing output to sequences controlled by a stream buffer.
31.7.5.7.2 Constructors [iostream.cons]
explicit basic_iostream(basic_streambuf<charT, traits>* sb);
Postconditions: 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 std::move(rhs).
31.7.5.7.3 Destructor [iostream.dest]
virtual ~basic_iostream();
Remarks: Does not perform any operations on rdbuf().
31.7.5.7.4 Assignment and swap [iostream.assign]
basic_iostream& operator=(basic_iostream&& rhs);
Effects: Equivalent to swap(rhs).
void swap(basic_iostream& rhs);
Effects: Calls basic_istream<charT, traits>::swap(rhs).