JetGroupRegister.h

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/*
  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef TRIGHLTJETHYPO_JETGROUPREGISTER_H
#define TRIGHLTJETHYPO_JETGROUPREGISTER_H
 
#include "TrigHLTJetHypo/TrigHLTJetHypoUtils/HypoJetDefs.h"
 
#include <map>
#include <algorithm>
 
// maintain a register of ordered vectors HypoJets 
 
struct HypoJetLess{
  bool operator() (const HypoJetVector::value_type& l,
           const HypoJetVector::value_type& r) const {
    return l.get() < r.get();
  }
};
 
struct HypoJetVectorLess{
  bool operator() (const HypoJetVector& l,
           const HypoJetVector& r) const {
    
    return std::lexicographical_compare(l.begin(),
                    l.end(),
                    r.begin(),
                    r.end(),
                    HypoJetLess());
  }
};
 
 
class JetGroupRegister {
 public:
 
  std::size_t record(HypoJetVector v);  // copy vector
 
 private:
  std::map<HypoJetVector, std::size_t, HypoJetVectorLess> m_reg;
    
};
#endif