/* p17.c */

main()
{
   int  y;
   int* ptr;
   static int a;

   ptr = &y;

   *ptr = 99;

   printf("y = %d val of ptr = %p addr of ptr = %p \n", y, ptr, &ptr);

   ptr = &a;

   printf("The address of a is %p \n", ptr);
}