Function.hpp

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// This file is part of GranOO, a workbench for DEM simulation.
//
// Author(s)    : - Damien Andre       IRCER/UNILIM, Limoges France
//                  <damien.andre@unilim.fr>
//                - Jean-luc Charles   Arts et Metiers ParisTech, CNRS, I2M, Bordeaux France
//                  <jean-luc.charles@ensam.eu>
//                - Jeremie Girardot   Arts et Metiers ParisTech, CNRS, I2M, Bordeaux France
//                  <jeremie.girardot@ensam.eu>
//                - Cedric Hubert      LAMIH/UPHF, Valenciennes France
//                  <cedric.hubert@uphf.fr>
//                - Ivan Iordanoff     Arts et Metiers ParisTech, CNRS, I2M, Bordeaux France
//                  <ivan.iordanoff@ensam.eu>
//
// Copyright (C) 2008-2019 D. Andre, JL. Charles, J. Girardot, C. Hubert, I. Iordanoff
//
// This program 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.
//
// This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
//
 
 
#ifndef _GranOO_Math_Function_hpp_
#define _GranOO_Math_Function_hpp_
 
#include <boost/random/mersenne_twister.hpp>
#include "GranOO3/Math/Exprtk.hpp"
 
namespace GranOO3
{
  namespace Math
  {
    class Function : public exprtk::ifunction<double>
    {
    public:
      Function(unsigned int varNumber);
      virtual ~Function();
 
      virtual void record(const std::string&) = 0;
 
      virtual double operator()() = 0;
      virtual double operator()(const double&);
      virtual double operator()(const double&,const double&);
      virtual double operator()(const double&, const double&, const double&);
      virtual double operator()(const double&, const double&, const double&, const double&);
      virtual double operator()(const double&, const double&, const double&, const double&, const double&);
      virtual double operator()(const double&, const double&, const double&, const double&, const double&, const double&);
      virtual double operator()(const double&, const double&, const double&, const double&, const double&, const double&, const double&);
      virtual double operator()(const double&, const double&, const double&, const double&, const double&, const double&, const double&, const double&);
 
    protected:
      static boost::mt11213b _generator;
 
    private:
      Function()                           = delete;
      Function(const Function&)            = delete;
      Function& operator=(const Function&) = delete;
 
    protected:
      static std::map<std::string, Function*> _recorded_function;
    };
  }
}
 
#endif