/*
   testfunc13.cpp
   CIS 150
   6/9/2005
   David Klick
   
   This program demonstrates how to use default arguments.
*/

#include <iostream>
#include <cmath>
using std::cout;

double power(double x, double y = 2.0);

int main(void) {
   double a = 4.0;

   cout << "4 squared is " << power(a) << '\n';
   cout << "4 cubed is " << power(a, 3.0) << '\n';
   return 0;
}

/*
   Power function with default of squaring first argument.
*/
double power(double x, double y) {
   return pow(x, y);
}

/*
   Sample output:
   
   4 squared is 16
   4 cubed is 64
*/