Parameter.h

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#if !defined(MINUITINTERFACE_PARAMETER_H)
#define MINUITINTERFACE_PARAMETER_H

// This file is a part of MinuitInterface - a front end for the Minuit minimization
//       package (Minuit itself was authored by Fred James, of CERN)
// 
// 
// Copyright Cornell University 1993, 1996, All Rights Reserved.
// 
// This software written by Lawrence Gibbons, Cornell University.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// 1. Redistributions of source code must retain the above copyright
//    notice and author attribution, this list of conditions and the
//    following disclaimer. 
// 2. Redistributions in binary form must reproduce the above copyright
//    notice and author attribution, this list of conditions and the
//    following disclaimer in the documentation and/or other materials
//    provided with the distribution.
// 3. Neither the name of the University nor the names of its contributors
//    may be used to endorse or promote products derived from this software
//    without specific prior written permission.
// 
// Creation of derivative forms of this software for commercial
// utilization may be subject to restriction; written permission may be
// obtained from Cornell University.
// 
// CORNELL MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED.  By way
// of example, but not limitation, CORNELL MAKES NO REPRESENTATIONS OR
// WARRANTIES OF MERCANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT
// THE USE OF THIS SOFTWARE OR DOCUMENTATION WILL NOT INFRINGE ANY PATENTS,
// COPYRIGHTS, TRADEMARKS, OR OTHER RIGHTS.  Cornell University shall not be
// held liable for any liability with respect to any claim by the user or any
// other party arising from use of the program.
//

#include <string>

#include "MinuitInterface/MISubject.h"

class Parameter : public MISubject
{
  
public:
  
  Parameter( const std::string& name, double initialValue = 0, double initialError = 0 ); 
  virtual ~Parameter();
  
  const std::string& name() const;
  
  void setValue( double newValue );
  double value() const {return m_value;}
  const double* constValuePtr() const { return &m_value; }
  double* valuePtr() { return &m_value; }
  
  virtual void setError( double newError, bool notify = false );
  virtual double error() const {return m_error;}
  
  void setValueError( double newValue, double newError );
  
private:
  
  // ------------ member data ------------
  std::string m_name;
  double m_value;
  double m_error;
};
#endif