FindByMassRange.h

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// $Header: /tmp/svngaudi/tmp.jEpFh25751/Gaudi/GaudiKernel/GaudiKernel/FindByMassRange.h,v 1.2 2000/12/13 12:57:13 mato Exp $
#ifndef GAUDIKERNEL_FINDBYMASSRANGE_H
#define GAUDIKERNEL_FINDBYMASSRANGE_H


// Include files
#include "GaudiKernel/IParticlePropertySvc.h"
#include "GaudiKernel/ParticleProperty.h"


class GAUDI_API FindByMassRange: public std::unary_function< ParticleProperty* ,bool > {

public:

  FindByMassRange( double low, double high ) : m_low( low ), m_high( high ) { }

  bool operator() ( const ParticleProperty* pp ) const                        {
    bool in_range = false;
    if ( pp ) {
      if ( pp->mass() >= m_low && pp->mass() <= m_high ) {
              in_range = true;
      }
    }
    return in_range;
  }

private:

  double m_low;
  double m_high;
};

#endif  // GAUDIKERNEL_FINDBYMASSRANGE_H