cpp

#include <iostream>
using namespace std;

class Fun {
  public:
    int loc;
    Fun(int val) { loc = val; }
    inline bool operator==(const Fun& rhs) {
      loc += 1;
      return loc == rhs.loc;
    }
    inline bool operator==(int rhs) {
      loc += 1;
      return loc == rhs;
    }
};

int main(int argc, char *argv[]) {
  Fun test(0);

  if (test == 1 && test == 2 && test == 3) {
    cout << "Overloading operators is fun." << endl;
  }
}