G4ParticleTableIterator.hh

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// $Id$
//
// 
// ------------------------------------------------------------
//  GEANT 4 class header file 
//
//  History: first implementation, based on object model of
//  28 Oct 1999, H.Kurashige
// ------------------------------------------------------------
 
#ifndef G4ParticleTableIterator_h
#define G4ParticleTableIterator_h 1
 
#include <map>
 
template < class K, class V > class G4ParticleTableIterator
{
 public:
  typedef  std::map<K, V, std::less<K> > Map;
  G4ParticleTableIterator( Map &adict):
    it(adict.begin()),
    mydict(&adict),
    defined(false)
     {}
 
  G4bool operator++ ()
    {
      if(!defined) return false;
      it++;
      return it!=mydict->end() ? true : false;
    }
      
  G4bool operator()()
    {
      if(defined) {
        return operator++();
      } else {
        defined=true;
        it=mydict->begin();
        return it!=mydict->end() ? true : false;
      }
    }
 
  void reset (){defined=false;}
  K* key() const { return &((*it).first); }
  V  value() const { return (*it).second; }
 
 private:
  typename Map::iterator it;  
  Map * mydict;
  G4bool defined;
};
 
#endif