ordered_node.h

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#ifndef ORDERED_NODE_CLASS
#define ORDERED_NODE_CLASS

/*****************************************************************************\
*                                                                             *
*  Name   : ordered_node                                                      *
*  Author : M McLeod                                                          *
*                                                                             *
*******************************************************************************
* Copyright (c) 2000-$now By Author.  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 2 of   *
* the License or (at your option) any later version.  This is online at:      *
*     http://www.fsf.org/copyleft/gpl.html                                    *
* Please send any updates to: fred@gruntose.com                               *
\*****************************************************************************/

#include "node.h"

namespace nodes {


class NODES_CLASS_STYLE ordered_node : public node {

public:
    ordered_node(int number_of_links = 0)
      : node(number_of_links)
        {}

    virtual ~ordered_node()
        {}

    enum MODES { EXACT=0 };
    enum COMPARE_OUTCOMES { NODE_ERROR = -99, LESS = -1, EQUAL = 0, GREAT = 1 };

    virtual int compare(const ordered_node &formal(other), int mode = EXACT) const
        { if (mode) {}; return LESS; }

};

} // namespace.

#endif

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