Scalar.h

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//
// This file is part of the MADELINE 2 program 
// written by Edward H. Trager, Ritu Khanna and Adrian Marrs
// Copyright (c) 2005 by the
// Regents of the University of Michigan.
// All Rights Reserved.
// 
// The latest version of this program is available from:
// 
//   http://eyegene.ophthy.med.umich.edu/madeline/
//   
// Released under the GNU General Public License.
// A copy of the GPL is included in the distribution
// package of this software, or see:
// 
//   http://www.gnu.org/copyleft/
//   
// ... for licensing details.
// 
//
// 2005.07.17.RK.ET
//

#ifndef SCALAR_INCLUDED
#define SCALAR_INCLUDED

#include "Variable.h"

class Scalar : public Variable{
private:
        Data* _val;
        
public:
        //
        // Constructors/Destructors:
        //
        Scalar(const std::string & name) : Variable(name) { }
        Scalar(const std::string & name,const short valueType,const std::string & value) : Variable(name,valueType){ if(valueType != ANY) set(valueType,value);}
        
        ~Scalar(){ 
                if(_valueType != ANY) delete _val;
        }
        // Copy Constructor:
        Scalar(const Scalar& s) : Variable(s._name,s._valueType),_val(s._val->clone()) { }
        
        //
        // Assignment Operator:
        //
        Scalar& operator= (const Scalar& s);
        //
        // Methods required by Variable virtual base class:
        //
        const std::string get( void ) const;
        const std::string getValueType() const;
        const std::string getVariableType() const { return "Scalar"; }
        
        //
        // Additional methods not present in the virtual base class:
        //
        void set(const short valueType,const std::string value);
        
        //
        // Friend functions:
        //
        friend bool operator==(const Scalar& a, const Scalar& b);
        friend bool operator<(const Scalar& a,const Scalar& b);
        
};

        std::ostream& operator<<(std::ostream& out,const Scalar& var);

#endif

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