template<class E, class T = char_traits<E> >
class istreambuf_iterator
: public iterator<input_iterator_tag,
E, typename T::off_type, E *, E&> {
public:
typedef E char_type;
typedef T traits_type;
typedef typename T::int_type int_type;
typedef basic_streambuf<E, T> streambuf_type;
typedef basic_istream<E, T> istream_type;
istreambuf_iterator(streambuf_type *sb = 0) throw();
istreambuf_iterator(istream_type& is) throw();
const E& operator*() const;
const E *operator->();
istreambuf_iterator& operator++();
istreambuf_iterator operator++(int);
bool equal(const istreambuf_iterator& rhs) const;
};