/* Code of Figure 5.21, page 156 from
   Kenneth C. Louden, Programming Languages
   Principles and Practice 2nd Edition
   Copyright (C) Brooks-Cole/ITP, 2003
*/

#include <iostream>

using namespace std;

typedef struct { int i; double d; } IntDouble;

bool operator < (IntDouble x, IntDouble y)
{ return x.i < y.i && x.d < y.d; 
}

IntDouble operator + (IntDouble x, IntDouble y)
{ IntDouble z;
  z.i = x.i + y.i;
  z.d = x.d + y.d;
  return z;
}

int main()
{ IntDouble x = {1,2.1}, y = {5,3.4};
  if (x < y) x = x  + y;
  else y = x + y;
  cout << x.i << " " << x.d << endl;
  return 0;
}