// We must report iterators equal if they both point beyond their
      // respective ranges. That can happen in a variety of fashions,
      // so we have to consult AtEnd().
      return (AtEnd() && typed_other->AtEnd()) ||
         ($for j  && [[

          current$(j)_ == typed_other->current$(j)_
]]);
    }

   private:
    Iterator(const Iterator& other)

      // We must report iterators equal if they both point beyond their
      // respective ranges. That can happen in a variety of fashions,
      // so we have to consult AtEnd().
      return (AtEnd() && typed_other->AtEnd()) ||
         (
          current1_ == typed_other->current1_ &&
          current2_ == typed_other->current2_);
    }

   private:
    Iterator(const Iterator& other)