rem: while (item = (_rep_data_*)list->ItemAt(i++)) {
add: while ((item = (_rep_data_*)list->ItemAt(i++)) != NULL) {
context: static	int32		index_of(BList const *list, unsigned long id)		{			int32 i = 0;			_rep_data_ *item;			while (item = (_rep_data_*)list->ItemAt(i++)) {				if (item->fId == id)					return i;			}			return -1;		}