#ifndef _utl_NumericalErrorPropagator_h_
#define _utl_NumericalErrorPropagator_h_

// $Id: NumericalErrorPropagator.h 18786 2011-03-05 15:38:06Z darko $

#include <vector>


namespace utl {

  class CovarianceMatrix;

  class NumericalErrorPropagator {

  public:
    enum Quality {
      eFaster,
      eBetter
    };

    virtual ~NumericalErrorPropagator() { }

    /// User implementation of the transformation function.
    virtual
    void
    Transform(std::vector<double>& output,
              const std::vector<double>& input) const = 0;

    void
    operator()(std::vector<double>& outputParameter,
               CovarianceMatrix& outputCovariance,
               const std::vector<double>& inputParameter,
               const CovarianceMatrix& inputCovariance,
               const Quality quality = eBetter) const;

  };

}


#endif