TrackToTrackCovCalculator.h

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#ifndef TrackToTrackCovCalculator_H
#define TrackToTrackCovCalculator_H

#include <map>
#include "RecoVertex/VertexPrimitives/interface/CachingVertex.h"

template <unsigned int N>
class TrackToTrackCovCalculator {
public:
  TrackToTrackCovCalculator() {}
  virtual ~TrackToTrackCovCalculator() {}

  virtual typename CachingVertex<N>::TrackToTrackMap operator()(const CachingVertex<N> &) const = 0;

  virtual TrackToTrackCovCalculator *clone() const = 0;
};

#endif