EvtItgTwoCoeffFcn.hh

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//--------------------------------------------------------------------------
//
//
// Copyright Information: See EvtGen/COPYRIGHT
//
// 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.
//
// Module: EvtItgTwoCoeffFcn.hh
//
// Description:
//      Class describing a function with two vectors of coefficients.
//
// Modification history:
//
//    Jane Tinslay                March 21, 2001       Module created
//
//------------------------------------------------------------------------
 
#ifndef EVTITTWOCOEFFFCN_HH
#define EVTITTWOCOEFFFCN_HH
 
#include <vector>
 
//-------------
// C Headers --
//-------------
extern "C" {}
 
#include "EvtItgAbsFunction.hh"
 
class EvtItgTwoCoeffFcn : public EvtItgAbsFunction {
 
public:
  EvtItgTwoCoeffFcn( double ( *theFunction )( double, const std::vector<double>&,
                                              const std::vector<double>& ),
                     double lowerRange, double upperRange, const std::vector<double>& coeffs1,
                     const std::vector<double>& coeffs2 );
 
  virtual ~EvtItgTwoCoeffFcn();
 
  virtual void   setCoeff( int, int, double );
  virtual double getCoeff( int, int );
 
protected:
  virtual double myFunction( double x ) const;
 
private:
  // Data members
  double ( *_myFunction )( double x, const std::vector<double>& coeffs1,
                           const std::vector<double>& coeffs2 );
 
  // Note: if your class needs a copy constructor or an assignment operator,
  // make one of the following public and implement it.
  EvtItgTwoCoeffFcn( const EvtItgTwoCoeffFcn& );            //// Copy Constructor
  EvtItgTwoCoeffFcn& operator=( const EvtItgTwoCoeffFcn& ); // Assignment op
 
  std::vector<double> _coeffs1;
  std::vector<double> _coeffs2;
};
 
#endif // EvtITGTWOCOEFFFUNCTION_HH