// This code implementation is the intellectual property of
// the GEANT4 collaboration.
//
// By copying, distributing or modifying the Program (or any work
// based on the Program) you indicate your acceptance of this statement,
// and all its terms.
//
// -------------------------------------------------------------------
//
// GEANT4 Class file
//
// For information related to this code contact:
// Geant4 Collaboration
//
// File name:     G4VhNuclearStoppingPower
//
// Author:        V.Ivanchenko (Vladimir.Ivanchenko@cern.ch)
// 
// Creation date: 20 July 2000
//
// Modifications: 
// 20/07/2000  V.Ivanchenko First implementation
//
// Class Description: 
//
// Hadrons/ions nuclear stopping power parameterisation
// Further documentation available from http://www.ge.infn.it/geant4/lowE

// -------------------------------------------------------------------
//

#ifndef G4VhNuclearStoppingPower_h
#define G4VhNuclearStoppingPower_h 1

#include "globals.hh"

class G4VhNuclearStoppingPower 
{

public:

  G4VhNuclearStoppingPower();

  virtual ~G4VhNuclearStoppingPower();

  void SetNuclearStoppingFluctuationsOn() {lossFlucFlag = true;}; 

  void SetNuclearStoppingFluctuationsOff() {lossFlucFlag = false;}; 

  virtual G4double NuclearStoppingPower(G4double kineticEnergy,
                                        G4double z1, G4double z2, 
                                        G4double m1, G4double m2) const=0;
protected:

  G4bool lossFlucFlag;
 
private:

  // hide assignment operator 
   G4VhNuclearStoppingPower & operator=(const G4VhNuclearStoppingPower &right);
   G4VhNuclearStoppingPower(const G4VhNuclearStoppingPower&);

};

#endif