24 Iterators library [iterators]

24.6 Stream iterators [stream.iterators]

24.6.3 Class template istreambuf_iterator [istreambuf.iterator]

24.6.3.7 operator!= [istreambuf.iterator::op!=]

template <class charT, class traits> bool operator!=(const istreambuf_iterator<charT,traits>& a, const istreambuf_iterator<charT,traits>& b);

Returns: !a.equal(b).