/*
 * Program to look at dangling pointer error
 */
#include <iostream>
#include <stdio.h>
using namespace std;

int main()
{
  int *ip, *ip2;

  // dynamically assign memory
  ip = new int;
  *ip = 268;
  printf("Initial values: ip=%u, *ip=%d\n", ip, *ip);

  // effect of delete on pointers
  delete ip;
  // should never reference pointer after executing delete !!!
  printf("Values after delete: ip=%u, *ip=%d\n", ip, *ip);
  *ip = 100;
  printf("Deference of dangling pointer: ip=%u, *ip=%d\n", ip, *ip);

  // next call to 'new' re-allocates same memory space. But, this behavior
  // depends on the runtime system, and can change!
  ip2 = new int;
  *ip2 = 233;
  printf("Second call to new: ip2=%u, *ip2=%d, (ip=%u, *ip=%d)\n",
	 ip2, *ip2, ip, *ip2);

  return 0;
}