/* Chapter 8 - Program 1 - POINTER.C */ #include int main() /* illustration of pointer use */ { int index, *pt1, *pt2; index = 39; /* any numerical value */ pt1 = &index; /* the address of index */ pt2 = pt1; printf("The value is %d %d %d\n", index, *pt1, *pt2); *pt1 = 13; /* this changes the value of index */ printf("The value is %d %d %d\n", index, *pt1, *pt2); return 0; } /* Result of execution The value is 39 39 39 The value is 13 13 13 */