#define IS_LEVELCLASS_UNDEFINED(p) \
((p)->sort_priority < LEVELCLASS_PREDEFINED_START || \
(p)->sort_priority > LEVELCLASS_PREDEFINED_END)
#define IS_LEVELCLASS_UNDEFINED(p) \
((p)->sort_priority < LEVELCLASS_PREDEFINED_START || \
(p)->sort_priority > LEVELCLASS_PREDEFINED_END)