Overloading Operators

#include <iostream>
using namespace std;

class even {
    public:
  int a;
  even( int v ) {
      a = v / 2 ∗ 2;
  }
  even  operator/  ( even y )
  {
      return even(a / y.a);
  }
  even  operator/= ( even y )
  {
      a = a / y.a / 2 ∗ 2;  return ∗this;
  }
  even  operator++ ( )
  {
      a += 2;
      even temp(a);
      return temp;
  }
  even  operator++ ( int x )
  {
      even temp(a);
      a += 2;
      return temp;
  }
};
ostream& operator<< ( ostream& x , even y)
{
    x << y.a;  return x;
}
main ()
{
    even n = even(2400), m = even(8);
    cout << n / m / even(19) << endl;
    n /= 5 ;
    cout << n++ << endl;
    cout << n << endl;
    cout << ++n << endl;
}

12.6 Overloading Operators