/*
 * rational.h
 *
 *  Created on: 28.02.2013
 *      Author: trifon
 */

#ifndef RATIONAL_H_
#define RATIONAL_H_

#include <cmath>

class Rational {
private:
	int numer, denom;

	void reduce();

public:
	// конструктори
	// Rational();
	Rational(int n=0, int d=1) ;

	Rational(Rational const&);

	Rational(double);

	// селектори
	int getNumerator() const {
		return numer;
	}

	int getDenominator() const;

	int getNumeratorPlus(int x) const {
		return numer + x;
	}
	void print() const;

	// мутатори
	void read();

	friend Rational operator/(int, Rational const&);

	friend Rational operator+(int x, Rational const& r) {
		return Rational(x * r.denom + r.numer, r.denom);
	}

	int& operator[](int i) {
		if (i == 0) return numer;
		if (i == 1) return denom;
		cout << "Грешка!" << endl;
		return numer;
	}

	friend ostream& operator<<(ostream&, Rational const&);
	friend istream& operator>>(istream&, Rational&);

	double operator()() const;
/*
	operator int() const;
	operator double() const;
	*/

private:
	class GCD {
	private:
		int x, y;
	public:
		GCD(int a, int b) {
			x = abs(a);
			y = abs(b);
			// !!! x = numer;
			// !!! y = denom;
			// Rational r;
			// r.print();
			// cout << r.numer;
		}
		int calculate();
	};
};// rat1, rat2;

// не може да се предефинира!
/*
class Rational {
private:
	int n, d;
};
*/

Rational add(Rational,Rational);


#endif /* RATIONAL_H_ */