Programming in C

Working with Pointers and Structures 251

struct entry n1, n2, n3;

struct entry *list_pointer = &n1;

n1.value = 100;

n1.next = &n2;

n2.value = 200;

n2.next = &n3;

n3.value = 300;

n3.next = (struct entry *) 0; // Mark list end with null pointer

while ( list_pointer != (struct entry *) 0 ) {

printf ("%i\n", list_pointer->value);

list_pointer = list_pointer->next;

}

return 0;
}

list_pointer

100

200

300

0

Program 11.7 Continued

Figure 11.8 Linked list showing list pointer and terminating null.