24 Iterators library [iterators]

24.5 Iterator adaptors [predef.iterators]

24.5.1 Reverse iterators [reverse.iterators]

24.5.1.3 reverse_iterator operations [reverse.iter.ops]

24.5.1.3.15 operator!= [reverse.iter.op!=]

template <class Iterator1, class Iterator2> bool operator!=( const reverse_iterator<Iterator1>& x, const reverse_iterator<Iterator2>& y);

Returns: x.current != y.current.