link_t* list_prepend(link_t* head, int value);
link_t* list_insert(link_t* head, unsigned index, int value);
link_t* list_delete(link_t* head, unsigned index);
+link_t* list_concat(link_t* first, link_t* second);
+link_t* list_sort(link_t* head);
+link_t* list_merge_sort(link_t* head);
unsigned list_count(link_t* head);
void list_set(link_t* head, unsigned index, int value);
int list_get(link_t* head, unsigned index);
-void list_clear(link_t* link);
+void list_clear(link_t* head);
+void list_display_values(link_t* head);
#endif /* CLIST_H */