// FILE: ExchngDr.cpp
// DRIVER FOR FUNCTION "exchange"

#include <iostream.h>
#include "Exchange.cpp"

// Functions Used...
// Exchanges two type double values
void exchange
   (double& a1, double& a2);

// driver (not included in the text)
int main ()
{
   // Local Data..
   double a1;
   double a2;

   // Read in the two doubles to be exchanged
   cout << "Enter a double value for a1 > ";
   cin >> a1;
   cout << "Enter a double value for a2 > ";
   cin >> a2;

   // Exchange the doubles
   exchange(a1, a2);
   // Print the results
   cout << "After the exchange a1 = " << a1 << " and a2 = " << a2 << endl;

  return 0;
}