//---------------------------------------------------------------------------
#include <iostream.h>
#include "rationalclass.h"
//---------------------------------------------------------------------------
//----Constructors
rational::rational(void) {

Set(0,1);
}
//---------------------------------------------------------------------------
rational::rational(int N, int D) {

Set(N,D);
}
//---------------------------------------------------------------------------
//----Set the value. Fails if D is not natural
boolean rational::Set(int N, int D) {

if (D >=1) {
    Numerator = N;
    Denominator = D;
    return(TRUE);
    }
else return(FALSE);
}
//---------------------------------------------------------------------------
//----Add
rational rational::Add(rational OtherOne) {

rational Answer;

Answer.Set(Numerator*OtherOne.Denominator + Denominator*OtherOne.Numerator,
           Denominator * OtherOne.Denominator);

return(Answer);
}
//---------------------------------------------------------------------------
//----Read. Fails if D is not natural
boolean rational::Read(void) {

int NewNumerator,
    NewDenominator;

cin >> NewNumerator >> NewDenominator;

return(Set(NewNumerator,NewDenominator));
}
//---------------------------------------------------------------------------
//----Write
void rational::Write(void) {

cout << Numerator << "/" << Denominator;
}
//---------------------------------------------------------------------------