Hello,
I created a structure with two nodes in it, one that points to the next node and the other points to previous node:
Why is the second printing not working???Code:#include<stdio.h> typedef struct node { int value; struct node *next; struct node *prev; }node; int main(void) { node *head = NULL; int i; head = malloc(sizeof(node)); head->value = 1; head->prev = NULL; for (i = 2; i < 11; i++) { head->next = malloc(sizeof(node)); head->next->prev = malloc(sizeof(node)); head->next->prev = head; head = head->next; head->value = i; } head->next = NULL; while(head != NULL) { printf("%d\n",head->value); head = head->prev; } /*Not working*/ while(head) { printf("%d\n",head->value); head = head->next; } system("pause"); return 0; }