- virtual void do_print() const;
- virtual void remove_all() { Horizontal_vertical_group_element::remove_all (); }
+ virtual void do_print() const;
+ virtual void remove_all() { Horizontal_vertical_group_element::remove_all (); }
+ virtual void do_unlink () { Horizontal_vertical_group_element::do_unlink (); }
+ SCORE_ELEM_CLONE(Horizontal_vertical_group_item);