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// $Id: G4ParticleLargerBeta.hh,v 1.7 2010-06-25 09:43:44 gunter Exp $
// Geant4 tag: $Name: not supported by cvs2svn $
//
// 20100112  M. Kelsey -- Add additional operator() which uses pointers,
//		also fix bug which returns wrong result
// 20110415  M. Kelsey -- Add additional operator() for G4CascadParticle

#ifndef G4ParticleLargerBeta_h
#define G4ParticleLargerBeta_h

#include "G4CascadParticle.hh"
#include "G4InuclElementaryParticle.hh"

class G4ParticleLargerBeta {
public:
  G4bool operator() (const G4InuclElementaryParticle& part1,
		     const G4InuclElementaryParticle& part2) {
    return (part1.getMomModule()/part1.getEnergy() >=
	    part2.getMomModule()/part2.getEnergy()
	    );
  }
 
  G4bool operator() (const G4InuclElementaryParticle* part1,
		     const G4InuclElementaryParticle* part2) {
    return (part1 && part2 && operator()(*part1, *part2));
  }

  G4bool operator() (const G4CascadParticle& part1,
		     const G4CascadParticle& part2) {
    return (operator()(part1.getParticle(), part2.getParticle()));
  }

  G4bool operator() (const G4CascadParticle* part1,
		     const G4CascadParticle* part2) {
    return (part1 && part2 && operator()(*part1, *part2));
  }
};

#endif	/* G4ParticleLargerBeta_h */