| 167 | virtual std::pair<basic_array_iterator<Coord> *, bool> begin () const = 0; |
| 168 | |
| 169 | virtual std::pair<basic_array_iterator<Coord> *, bool> begin_regular (long /*a*/, long /*b*/) const { return begin (); } |
| 170 | |
| 171 | virtual ArrayBase *basic_clone () const |
| 172 | { |