/* Main */

#include <iostream>
#include "Number.h"
#include "Rational.h"

using std::cout;
using std::cin;
using std::endl;


Rational yellowSubRoutine( Rational x )
{
  cout << "NoOfNumbers (YSR): " << Number::noOfNumbers() << endl; 

  if ( !x.isPositive() )
    x = x * Rational( -1 );

  x = Rational( 1, 1 ) / x; 

  return x;
}


int main()
{
  Rational   a, b( 7 ), c( 4, 3 ), d=c;

  cout << "Value from default numerator and denominator: ";
  a.write();
  cout << endl;

  cout << "Value from default denominator: ";
  b.write();
  cout << endl;

  cout << "Value from constructor call with two parameters: ";
  c.write();
  cout << endl;

  cout << "Value from copy constructor: ";
  d.write();
  cout << endl;
 
  cout << "7 / FourThirds: "; 
  ( b / c ).write(); // same as ( b.operator/(c) ).write
  cout << endl;

  cout << "NoOfNumbers: " << Number::noOfNumbers() << endl;

  while ( true )  
  {
    Rational input, result;

    cout << "Please enter a rational number (exit with '0 1') : " << endl;
    input.read();
   
    if ( input == Rational( 0, 1 ) )
      break; // abort while loop

    result = yellowSubRoutine( input );
    cout << "Positive Inverse: ";
    result.write();
    cout << endl;

    cout << "NoOfNumbers: " << Number::noOfNumbers() << endl;
  }

  return 0; 
}