// rational.h
// declaration of the rational class
// member functions defined in rational.cc
// for Problem 6.6 in D&D

// prevent multiple inclusions of header file
#ifndef rational_h
#define rational_h

class rational
{
public:
//
  rational(int = 0, int = 1);

  // setfunctions;
  void setrational(int, int); // denominator must not be 0;
  
  // get functions;
  int getnumerator();
  int getdenominator();
  
  // printing functions
  void printfract();
  void printfloat();
  
  // arithmetic functions
  rational add(rational);
  rational subtract(rational);
  rational mult(rational);
  rational divide(rational);

private:
  int numerator;
  int denominator;

  void makeCommonDenom(rational &);
  int findCommonDenom(rational);
  void reduceform();

};

#endif