basic_ofstream(); (1)

void swap( basic_streambuf& other );

Defined in header

pos_type pubseekoff( off_type off, ios_base::seekdir dir, ios_base::openmode

Defined in header

basic_istream& seekg( pos_type pos );

void clear( std::ios_base::iostate state = std::ios_base::goodbit

explicit basic_istream( std::basic_streambuf<CharT, Traits>* sb);

std::streamsize in_avail();

void close();