64     list->head->prev = NULL;  in Curl_llist_insert_next()
71     ne->prev = e;  in Curl_llist_insert_next()
73       list->head->prev = ne;  in Curl_llist_insert_next()
77       e->next->prev = ne;  in Curl_llist_insert_next()
106       e->next->prev = NULL;  in Curl_llist_remove()
109     if(!e->prev)  in Curl_llist_remove()
112       e->prev->next = e->next;  in Curl_llist_remove()
115       list->tail = e->prev;  in Curl_llist_remove()
117       e->next->prev = e->prev;  in Curl_llist_remove()
123   e->prev = NULL;  in Curl_llist_remove()
165       e->next->prev = NULL;  in Curl_llist_move()
168     e->prev->next = e->next;  in Curl_llist_move()
170       list->tail = e->prev;  in Curl_llist_move()
172       e->next->prev = e->prev;  in Curl_llist_move()
180     to_list->head->prev = NULL;  in Curl_llist_move()
186     e->prev = to_e;  in Curl_llist_move()
188       to_e->next->prev = e;  in Curl_llist_move()