// $Revision: 1.5 $

    // Copyright (C) 1994-1995 Taligent, Inc. All rights reserved.

#ifndef TaligentSamples_ADDITIONIMPLEMENTATION
#define TaligentSamples_ADDITIONIMPLEMENTATION

#ifndef Taligent_COREPRIMITIVECLASSES
#include <Taligent/CorePrimitiveClasses.h>
#endif

#ifndef TaligentSamples_ADDITIONPROTOCOL
#include "AdditionProtocol.h"
#endif


//---- TAdditionImplementation -----------------------------------------------------------

class TAdditionImplementation : public MAdditionProtocol {
  public:
    TaligentTypeExtensionDeclarationsMacro(TAdditionImplementation)
  public:
                                TAdditionImplementation();
                                TAdditionImplementation(const TAdditionImplementation& source);
    virtual                     ~TAdditionImplementation();
                                        
    TAdditionImplementation&    operator=(const TAdditionImplementation& source);
    virtual TStream&            operator>>=(TStream& toStream) const;
    virtual TStream&            operator<<=(TStream& fromStream);
    
    virtual long                Add(long num1, long num2);
    virtual void                AddOne(long& num);

  protected:
    void                        TestForOverflowAndUnderflow(long num1, long num2);
    
  private:
    enum {kOriginalVersion};
};

#endif