循環リスト

circular_list.c

#include <stdio.h>

struct node {
   int data;
   struct node *next;
};

int main(void) {
   struct node a, b, c, d;
   a.next = &b;
   b.next = &c;
   c.next = &d;
   d.next = &a;
   a.data = 1;
   b.data = 2;
   c.data = 3;
   d.data = 4;
   for(struct node *p = &a; ; p = p->next) {
      printf("%p : %d¥n", p, p->data);
   }
   return 0;
}