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AscendingEta.h

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//*************************************************************************
//*                                                                       *
//*                     class AscendingEta GenParticle binary predicate   *
//*                                                                       *
//* Order GenParicles by ascending eta                                    *
//*************************************************************************  
#ifndef HEPMCHELPER_ASCENDINGETA_H
#define HEPMCHELPER_ASCENDINGETA_H

#ifndef HEPMCHELPER_IMCSELECTOR_H 
#include "AtlfastUtils/HepMC_helper/IMCselector.h"
#endif

namespace HepMC_helper{
  
  class AscendingEta {
  public:
    bool operator() 
      ( const Particle* const a, 
        const Particle* const b ) const;
    bool operator() 
      ( const Particle& a, 
        const Particle& b ) const;
  };
}//namespace
#endif

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