#include <iostream>
using namespace std;

int main() {
  int ex[] = {1, 2, 3, 4, 5};
  int *intPtr;
  void *voidPtr;

  // This is legal
  intPtr = ex;

  // this is equivalent
  // intPtr = &ex[0];

  // Is this?
  // ex = intPtr;

  // Dereference intPtr
  //cout << *intPtr << endl;

  // Pointer arithmetic
  //cout << *(intPtr + 1) << endl;

  //cout << intPtr << endl;
  //cout << (intPtr + 1) << endl;

  voidPtr = ex;

  // Dereference voidPtr
  //cout << *( (int *) voidPtr ) << endl;
  
  // Arithmetic with voidPtr
  //cout << *((int *) (voidPtr+1)) << endl;
  //cout << *((int *) (voidPtr+2)) << endl;
  //cout << *((int *) (voidPtr+3)) << endl;
  //cout << *((int *) (voidPtr+4)) << endl;

  // More examples

  int x = 42;
  intPtr = &x;

   cout << "x is " << x << " and "
	<< "intPtr is " << intPtr << endl;

  // Dereference intPtr

  cout << "*intPtr is " 
        << *intPtr << endl;

  return 0;
}