[u/mrichter/AliRoot.git] / TEvtGen / EvtGenBase / EvtAmpIndex.hh

//--------------------------------------------------------------------------
//
// Environment:
//      This software is part of the EvtGen package developed jointly
//      for the BaBar and CLEO collaborations.  If you use all or part
//      of it, please give an appropriate acknowledgement.
//
// Copyright Information: See EvtGen/COPYRIGHT
//      Copyright (C) 2002      Caltech, UCSB
//
// Module: EvtGen/EvtAmpIndex.hh
//
// Description:This class keeps track of indices on amplitude objects.
//
// Modification history:
//
//    Ryd     Nov 22, 2002         Module created
//
//------------------------------------------------------------------------

#ifndef EVTAMPINDEX_HH
#define EVTAMPINDEX_HH

#include <vector>

class EvtAmpIndex {

  friend class EvtAmpSubIndex;

public:

  EvtAmpIndex(std::vector<int> ind);
  virtual ~EvtAmpIndex() {}

  void reset();
  bool next();

  int index();

private:

  std::vector<int> _ind;
  int _size;
  std::vector<int> _state;
  std::vector<int> _nstate;

};


#endif
Commit	Line	Data
da0e9ce3	1	//--------------------------------------------------------------------------
	2	//
	3	// Environment:
	4	// This software is part of the EvtGen package developed jointly
	5	// for the BaBar and CLEO collaborations. If you use all or part
	6	// of it, please give an appropriate acknowledgement.
	7	//
	8	// Copyright Information: See EvtGen/COPYRIGHT
	9	// Copyright (C) 2002 Caltech, UCSB
	10	//
	11	// Module: EvtGen/EvtAmpIndex.hh
	12	//
	13	// Description:This class keeps track of indices on amplitude objects.
	14	//
	15	// Modification history:
	16	//
	17	// Ryd Nov 22, 2002 Module created
	18	//
	19	//------------------------------------------------------------------------
	20
	21	#ifndef EVTAMPINDEX_HH
	22	#define EVTAMPINDEX_HH
	23
	24	#include <vector>
	25
	26	class EvtAmpIndex {
	27
	28	friend class EvtAmpSubIndex;
	29
	30	public:
	31
	32	EvtAmpIndex(std::vector<int> ind);
	33	virtual ~EvtAmpIndex() {}
	34
	35	void reset();
	36	bool next();
	37
	38	int index();
	39
	40	private:
	41
	42	std::vector<int> _ind;
	43	int _size;
	44	std::vector<int> _state;
	45	std::vector<int> _nstate;
	46
	47	};
	48
	49
	50	#endif
	51