/*-----
  contract: main: void -> int
  purpose: testing program for function ring_area
  examples: prints the results of calling ring_area(5, 2) to the screen,
            which should look like this:
65.9734

  by: Sharon Tuttle
  last modified: 4-17-07
-----*/

// uses cout, so need C++ standard library iostream;
//    calls ring_area, so need ring_area.h

#include <iostream>
#include "ring_area.h"
using namespace std;

int main()
{
    cout << ring_area(5, 2) << endl;
	    
    return EXIT_SUCCESS;
}