Synopsis

namespace std {
typedef T1 streamoff;
typedef T2 streamsize;
typedef fpos streampos;

       // TEMPLATE CLASSES
template<class E>
    class char_traits;
class char_traits<char>;
class char_traits<wchar_t>;
template<class E, class T = char_traits<E> >
    class basic_ios;
template<class E, class T = char_traits<E> >
    class istreambuf_iterator;
template<class E, class T = char_traits<E> >
    class ostreambuf_iterator;
template<class E, class T = char_traits<E> >
    class basic_streambuf;
template<class E, class T = char_traits<E> >
    class basic_istream;
template<class E, class T = char_traits<E> >
    class basic_ostream;
template<class E, class T = char_traits<E> >
    class basic_iostream;
template<class E, class T = char_traits<E> >
    class basic_stringbuf;
template<class E, class T = char_traits<E> >
    class basic_istringstream;
template<class E, class T = char_traits<E> >
    class basic_ostringstream;
template<class E, class T = char_traits<E> >
    class basic_stringstream;
template<class E, class T = char_traits<E> >
    class basic_filebuf;
template<class E, class T = char_traits<E> >
    class basic_ifstream;
template<class E, class T = char_traits<E> >
    class basic_ofstream;
template<class E, class T = char_traits<E> >
    class basic_fstream;

        // char TYPE DEFINITIONS
typedef basic_ios<char, char_traits<char> > ios;
typedef basic_streambuf<char, char_traits<char> >
    streambuf;
typedef basic_istream<char, char_traits<char> >
    istream;
typedef basic_ostream<char, char_traits<char> >
    ostream;
typedef basic_iostream<char, char_traits<char> >
    iostream;
typedef basic_stringbuf<char, char_traits<char> >
    stringbuf;
typedef basic_istringstream<char, char_traits<char> >
    istringstream;
typedef basic_ostringstream<char, char_traits<char> >
    ostringstream;
typedef basic_stringstream<char, char_traits<char> >
    stringstream;
typedef basic_filebuf<char, char_traits<char> >
    filebuf;
typedef basic_ifstream<char, char_traits<char> >
    ifstream;
typedef basic_ofstream<char, char_traits<char> >
    ofstream;
typedef basic_fstream<char, char_traits<char> >
    fstream;

        // wchar_t TYPE DEFINITIONS
typedef basic_ios<wchar_t, char_traits<wchar_t> > wios;
typedef basic_streambuf<wchar_t, char_traits<wchar_t> >
    wstreambuf;
typedef basic_istream<wchar_t, char_traits<wchar_t> >
    wistream;
typedef basic_ostream<wchar_t, char_traits<wchar_t> >
    wostream;
typedef basic_iostream<wchar_t, char_traits<wchar_t> >
    wiostream;
typedef basic_stringbuf<wchar_t, char_traits<wchar_t> >
    wstringbuf;
typedef basic_istringstream<wchar_t,
    char_traits<wchar_t> > wistringstream;
typedef basic_ostringstream<wchar_t,
    char_traits<wchar_t> > wostringstream;
typedef basic_stringstream<wchar_t,
    char_traits<wchar_t> > wstringstream;
typedef basic_filebuf<wchar_t, char_traits<wchar_t> >
    wfilebuf;
typedef basic_ifstream<wchar_t, char_traits<wchar_t> >
    wifstream;
typedef basic_ofstream<wchar_t, char_traits<wchar_t> >
    wofstream;
typedef basic_fstream<wchar_t, char_traits<wchar_t> >
    wfstream;
    }