#ifndef __SimpleNumber
#define __SimpleNumber

#include "NumberRep.hh"

// forward declarations
class Integer;
class Long;
class LargeInt;
class Complex;
class Imaginary;


// Implementa el metodo clone (similar a un exemplar) para una copia de cualquier tipo
// de la jerarquia
class SimpleNumber: public NumberRep
{
public:

  SimpleNumber( );
  ~SimpleNumber( );

  virtual NumberRep* operator+ ( const NumberRep& n ) const =0;
  virtual NumberRep* operator- ( const NumberRep& n ) const =0;
  virtual NumberRep* operator- ( ) const =0;


protected:
  virtual NumberRep* addInt( const Integer& n ) const =0;
  virtual NumberRep* addLong( const Long& n ) const =0;
  virtual NumberRep* addLargeInt( const LargeInt& n ) const =0;
  virtual NumberRep* addComplex( const Complex& n ) const =0;
  virtual NumberRep* addImaginary( const Imaginary& n ) const =0;

  virtual NumberRep* subsInt( const Integer& n ) const =0;
  virtual NumberRep* subsLong( const Long& n ) const =0;
  virtual NumberRep* subsLargeInt( const LargeInt& n ) const =0;
  virtual NumberRep* subsComplex( const Complex& n ) const =0;
  virtual NumberRep* subsImaginary( const Imaginary& n ) const =0;

  virtual SimpleNumber* clone( ) const =0;
};

#endif // __SimpleNumber