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EvtItgFunction.hh
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EvtItgFunction.hh
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/***********************************************************************
* Copyright 1998-2020 CERN for the benefit of the EvtGen authors *
* *
* This file is part of EvtGen. *
* *
* EvtGen is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* EvtGen is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with EvtGen. If not, see <https://www.gnu.org/licenses/>. *
***********************************************************************/
#ifndef EVTITGFUNCTION_HH
#define EVTITGFUNCTION_HH
#include "EvtGenModels/EvtItgAbsFunction.hh"
/**
* Generic function where the pointer to the function is available.
*
* The function is taken as type pointer to function returning double and
* taking a double (the abscissa) and a const RWTValVector<double> reference
* (the parameter values of the function) as arguments.
*/
class EvtItgFunction : public EvtItgAbsFunction {
public:
// Constructors
EvtItgFunction( double ( *theFunction )( double ), double lowerRange,
double upperRange );
void setCoeff( int, int, double ) override{};
double getCoeff( int, int ) override { return 0.0; };
protected:
// Helper functions
double myFunction( double x ) const override;
private:
// Data members
double ( *_myFunction )( double x );
};
#endif // EvtITGFUNCTION_HH

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