#include <cstdlib>
#include <iostream>
#include <string>
#include <cmath>
#include "circ_area.h"
#include "ring_area.h"
using namespace std;

/*--------
  signature: main: void -> int

  purpose: testing program for the function ring_area

  examples: when run, this should output to the screen:
testing ring_area: true's should mean passed:
---------------------------------------
...followed by each testing call, hopefully
   followed by true to show it passed

  by: funct_play
  last modified: Fri Oct 14 12:19:10 PDT 2016
--------*/

int main()
{
    cout << boolalpha;
    cout << endl;
    cout << "testing ring_area: true's should mean passed: " << endl;
    cout << "---------------------------------------" << endl;
    cout << "(abs(ring_area(10, 1) - (314.159 - 3.14159)) < .001): " 
         << (abs(ring_area(10, 1) - (314.159 - 3.14159)) < .001) << endl;
    cout << "(abs(ring_area(2, 1) - (circ_area(2) - 3.14159)) < .001): " 
         << (abs(ring_area(2, 1) - (circ_area(2) - 3.14159)) < .001) << endl;
    cout << endl;

    return EXIT_SUCCESS;
}