| 193 | |
| 194 | reference operator*() const { return *rep_.val(); } |
| 195 | pointer operator->() const { return rep_.val(); } |
| 196 | bool operator==(const const_iterator& x) const { return rep_ == x.rep_; } |
| 197 | bool operator!=(const const_iterator& x) const { return rep_ != x.rep_; } |
| 198 | const_iterator& operator++() { |