// This program is a driver for testing the showFees function.
#include <iostream>
using namespace std;

// Prototype
void showFees(double, int);

int main()
{
   // Constants for membership rates
   const double ADULT = 40.0;
   const double SENIOR = 30.0;
   const double CHILD = 20.0;

   // Perform a test for adult membership.
   cout << "Testing an adult membership...\n"
        << "Calling the showFees function with arguments "
        << ADULT << " and 10.\n";
   showFees(ADULT, 10);
   
   // Perform a test for senior citizen membership.
   cout << "\nTesting a senior citizen membership...\n"
        << "Calling the showFees function with arguments "
        << SENIOR << " and 10.\n";
   showFees(SENIOR, 10);
   
   // Perform a test for child membership.
   cout << "\nTesting a child membership...\n"
        << "\nCalling the showFees function with arguments "
        << CHILD << " and 10.\n";
   showFees(CHILD, 10);
   return 0;
}

//*****************************************************************
// Definition of function showFees. The memberRate parameter      *
// the monthly membership rate and the months parameter holds the *
// number of months. The function displays the total charges.     *
//*****************************************************************

void showFees(double memberRate, int months)
{
    cout << "The total charges are $"
         << (memberRate * months) << endl;
}