#include <iostream.h>
#include "complex.h"

void f(Complex x);
void g(Complex &x);

int main()
{
   Complex x;
   Complex y(5.0);
   Complex z(-3.0, 2.0);

   x.Display();
   cout << endl;

   y.Display();
   cout << endl;

   z.Display();
   cout << endl;

   cout << "About to call f().\n";
   f(z);
   cout << "Returned from f().\n";

   z.Display();
   cout << endl;

   cout << "About to call g().\n";
   g(z);
   cout << "Returned from g().\n";

   z.Display();
   cout << endl;

   x.Add(y);
   x.Add(z);
   x.Display();
   cout << endl;

   return 0;
}

void f(Complex x)
{
   Complex y(3.5, 7.8);

   x.Add(y);
   x.Display();
   cout << endl;
}

void g(Complex &x)
{
   x.Add(6.7);
   x.Display();
   cout << endl;
}