24 struct link_element *next;
26 typedef struct link_element t_link_element;
28 struct double_link_element{
29 struct double_link_element *previous;
31 struct double_link_element *next;
33 typedef struct double_link_element t_double_link_element;
37 unsigned int hashcode;
39 struct hash_element *next;
41 typedef struct hash_element t_hash_element;