DifferentiableFunction.h

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/*
 * 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.
 *
 * Written (W) 2013 Roman Votyakov
 * Copyright (C) 2012 Jacob Walker
 */

#ifndef CDIFFERENTIABLEFUNCTION_H_
#define CDIFFERENTIABLEFUNCTION_H_

#include <shogun/lib/config.h>

#include <shogun/base/SGObject.h>
#include <shogun/lib/Map.h>
#include <shogun/lib/SGVector.h>

namespace shogun
{

class CDifferentiableFunction : public CSGObject
{
public:
    CDifferentiableFunction();

    virtual ~CDifferentiableFunction();

    virtual CMap<TParameter*, SGVector<float64_t> >* get_gradient(
            CMap<TParameter*, CSGObject*>* parameters)=0;

    virtual SGVector<float64_t> get_value()=0;
};
}
#endif /* CDIFFERENTIABLEFUNCTION_H_ */