EvtItgFourCoeffFcn.hh

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#ifndef EVTITFOURCOEFFFCN_HH
#define EVTITFOURCOEFFFCN_HH

#include "EvtGenModels/EvtItgAbsFunction.hh"

#include <vector>

// Description:
//      Class describing a function with Four vectors of coefficients.

class EvtItgFourCoeffFcn : public EvtItgAbsFunction {
  public:
    EvtItgFourCoeffFcn( double ( *theFunction )( double,
                                                 const std::vector<double>&,
                                                 const std::vector<double>&,
                                                 const std::vector<double>&,
                                                 const std::vector<double>& ),
                        double lowerRange, double upperRange,
                        const std::vector<double>& coeffs1,
                        const std::vector<double>& coeffs2,
                        const std::vector<double>& coeffs3,
                        const std::vector<double>& coeffs4 );

    void setCoeff( int, int, double ) override;
    double getCoeff( int, int ) override;

  protected:
    double myFunction( double x ) const override;

  private:
    // Data members
    double ( *_myFunction )( double x, const std::vector<double>& coeffs1,
                             const std::vector<double>& coeffs2,
                             const std::vector<double>& coeffs3,
                             const std::vector<double>& coeffs4 );

    std::vector<double> _coeffs1;
    std::vector<double> _coeffs2;
    std::vector<double> _coeffs3;
    std::vector<double> _coeffs4;
};

#endif    // EvtITGPTRFUNCTION_HH