1: #include <iostream.h>
   2: using namespace std;
   3:  
   4: int main()
   5: {
   6:     const int x = 10;
   7:     int * ptr;
   8:     ptr = (int *)( &x );    //make the pointer to constant int*
   9:     
  10:     *ptr = 8;               //change the value of the constant using the pointer.
  11:  
  12:     //here is the real surprising part
  13:     cout<<"x: "<<x<<endl;          //prints 10, means value is not changed
  14:     cout<<"*ptr: "<<*ptr<<endl;    //prints 8, means value is changed
  15:     cout<<"ptr: "<<(int)ptr<<endl; //prints some address lets say 0xfadc02
  16:     cout<<"&x: "<<(int)&x<<endl;   //prints the same address, i.e. 0xfadc02
  17:     //This means that x resides at the same location ptr points to yet 
  18:     //two different values are printed, I cant understand this.
  19:     
  20:     return 0;
  21: }