difference_type index index_iterator index_iterator index_iterator iterator_category operator* operator++ operator+= operator- operator-- operator== pointer reference value_type

operator== template<typename R > bool operator== ( const index_iterator< R > & lhs, const index_iterator< R > & rhs ) friend Determines if two iterators are equal. Parameters lhs,rhs The iterators to compare. Returns lhs.index() == rhs.index()