/******************************************************************************** Copyright (C) 2000-2006 TROLLTECH ASA. All rights reserved.**** This file is part of the Phone Edition of the Qtopia Toolkit.**** Licensees holding a valid license agreement from Trolltech or any of its** authorized distributors may use this file in accordance with** the License Agreement provided with the Licensed Software.**** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for**   information about Trolltech's Commercial License Agreements.**** Contact info@trolltech.com if any conditions of this licensing are** not clear to you.********** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.******************************************************************************/#ifdef ENABLE_FRACTION#ifndef CALC_FRACTION_H#define CALC_FRACTION_H#include "instruction.h"#include "fractiondata.h"#include "doubledata.h"//Fraction instruction baseclass BaseFractionInstruction:public Instruction {public:    BaseFractionInstruction();    ~BaseFractionInstruction(){};    virtual void eval();    virtual void doEval(FractionData *,FractionData *){};    virtual void doEval(FractionData *){};};// Factoryclass iFractionFactory:public Instruction {public:    iFractionFactory();    ~iFractionFactory(){};    void eval();};// Copyclass iFractionCopy:public BaseFractionInstruction {public:    iFractionCopy();    ~iFractionCopy(){};    void eval();};// Conversionsclass iConvertDoubleFraction:public Instruction {public:    iConvertDoubleFraction();    ~iConvertDoubleFraction(){};    void eval();};// Mathematical functionsclass iAddFractionFraction:public BaseFractionInstruction {public:    iAddFractionFraction();    ~iAddFractionFraction(){};    void doEval(FractionData *,FractionData *);};class iSubtractFractionFraction:public BaseFractionInstruction {public:    iSubtractFractionFraction ();    ~iSubtractFractionFraction (){};    void doEval(FractionData *,FractionData *);};class iMultiplyFractionFraction:public BaseFractionInstruction {public:    iMultiplyFractionFraction ();    ~iMultiplyFractionFraction (){};    void doEval(FractionData *,FractionData *);};class iDivideFractionFraction:public BaseFractionInstruction {public:    iDivideFractionFraction ();    ~iDivideFractionFraction (){};    void doEval(FractionData *,FractionData *);};class iNegateFractionFraction:public BaseFractionInstruction {public:    iNegateFractionFraction ();    ~iNegateFractionFraction (){};    void doEval(FractionData *);};#endif#endif //ENABLE_FRACTION