void pointerAccess(int *);
void structAccess(int *);
main() {

  int x, *p;

  printf("Enter value for x: ");
  scanf("%d", &x);

  p = &x;

  printf("Value of x = %d  =  %d  = %d\n",x, *p, p[0]);

  printf("\nPointer Access..\n");
  pointerAccess(&x);

  printf("\nStructure Access..\n");
  structAccess(&x); 
}

void pointerAccess(int *p) {
  int i;
  char *c;

  c = (char *) p;

  for(i=0; i < 4; i++)  {
    printf("%x ",  c[i]);    
  }

}

void structAccess(int *p) {

  typedef struct {
   unsigned short int lowerHalf;
   unsigned short int upperHalf;
  } HalfandHalf;

  // Cast the pointer to p as a pointer to HalfandHalf
  HalfandHalf *t = (HalfandHalf *) p;

  printf("Lower half = %x\n", t->lowerHalf);
  printf("Upper half = %x\n", t->upperHalf);
}