#include "malloc.h" #include "linked_list.h" List* InitList() { List *new = (List *) malloc(sizeof(List)); new->head = NULL; return new; } int Insert(List *l, char *data) { Item *new = (Item *) malloc(sizeof(Item)); node->data = malloc(strlen(string) + 1); strcpy(node->data, string); if (l->head = NULL) { new->next = new; new->prev = new; l->head = new; return; } else { new->next = l->head; new->prev = l->head->prev; l->head->prev->next = new; l->head->prev = new; l->head = new; } } Item* Find(List *l, char *data) { if (l->head == NULL) { return NULL; } Item *cur = l->head; do { if (strcmp(data, cur->data) == 0) { return cur; } cur = cur->next; } while (cur != l->head); return NULL; }