STK_IFunction.h

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/*--------------------------------------------------------------------*/
/*     Copyright (C) 2004-2016  Serge Iovleff, Université Lille 1, Inria
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
    published by the Free Software Foundation; either version 2 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 Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
    License along with this program; if not, write to the
    Free Software Foundation, Inc.,
    59 Temple Place,
    Suite 330,
    Boston, MA 02111-1307
    USA
 
    Contact : S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
*/
 
/*
 * Project:  stkpp::Analysis
 * Purpose:  Define the Interface IFunction base class.
 * Author:   Serge Iovleff, S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
 **/
 
#ifndef STK_IFUNCTION_H
#define STK_IFUNCTION_H
 
#include "Sdk.h"
 
#include <STKernel.h>
 
namespace STK
{
 
template <class Function>
class IFunction: public IRecursiveTemplate<Function>
{
  protected:
    inline IFunction() {}
    inline ~IFunction() {}
 
  public:
    inline Real operator()(Real const& x) const { return this->asDerived().fImpl(x);}
 
    inline Real xmin() const { return this->asDerived().xminImpl();}
    inline Real xmax() const { return this->asDerived().xmaxImpl();}
 
    inline Real xminImpl() const { return -Arithmetic<Real>::max();}
    inline Real xmaxImpl() const { return Arithmetic<Real>::max();}
};
 
} // namespace STK
 
#endif /*STK_IFUNCTION_H*/