#ifndef __RATIONAL_H__
#define __RATIONAL_H__

#include "Number.h"
#include <iostream>
using std::istream;
using std::ostream;

class Rational : public Number<Rational> {
public:
    enum DISPLAY { FRACTIONAL, FLOATING_POINT };
private:
    int num;
    int den;
    static DISPLAY display_style;
    void simplify();
    static int gcd(const int, const int);
    void init(const int, const int);
public:
    Rational();
    Rational(const Rational& obj);
    Rational(const int, const int);
    void setNums(const int, const int);
    int getNumerator() const;
    int getDenominator() const;
    static void setDisplayStyle(const DISPLAY);
    static DISPLAY getDisplayStyle();
    Rational& operator-=(const Rational& rhs);
    Rational& operator+=(const Rational& rhs);
    Rational& operator*=(const Rational& rhs);
    Rational& operator/=(const Rational& rhs);
    Rational& operator=(const Rational& rhs);
    const Rational operator+(const Rational& rhs) const;
    const Rational operator-(const Rational& rhs) const;
    const Rational operator*(const Rational& rhs) const;
    const Rational operator/(const Rational& rhs) const;
    bool operator==(const Rational& rhs) const;
    bool operator!=(const Rational& rhs) const;
    bool operator<(const Rational& rhs) const;
    bool operator<=(const Rational& rhs) const;
    bool operator>(const Rational& rhs) const;
    bool operator>=(const Rational& rhs) const;
    const Rational& operator++(); // prefix
    const Rational operator++(int); // postfix
    const Rational& operator--(); // prefix
    const Rational operator--(int); // postfix
    friend ostream& operator<<(ostream&, const Rational&);
    friend istream& operator>>(istream&, Rational&);
};

#endif