MNPtrProxy.h

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/*
 * Copyright (c) 1997
 * Silicon Graphics Computer Systems, Inc.
 *
 * Permission to use, copy, modify, distribute and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.  Silicon Graphics makes no
 * representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied warranty.
 *
 * Heavily modified by KOM/Darmstadt University of Technology, 2000
 */
#ifndef _R_PTR_PROXY_H
#define _R_PTR_PROXY_H

#include <assert.h>

#include "MNRefProxy.h"

class MNPtrProxy
{
    // XXX this class should be rewritten.
    friend class MNRefProxy;
    MNRope*  _M_root;     // The whole rope.
    size_t   _M_pos;
public:
    MNPtrProxy(const MNRefProxy& __x);
    MNPtrProxy(const MNPtrProxy& __x);
    MNPtrProxy();
    MNPtrProxy(uchar_t* __x);

    MNPtrProxy& operator= (const MNPtrProxy& __x);
    MNRefProxy  operator*() const;

    friend bool operator== (const MNPtrProxy& __x,
                            const MNPtrProxy& __y);
};

inline bool operator== (const MNPtrProxy& __x,
                        const MNPtrProxy& __y)
{
    return (__x._M_pos == __y._M_pos && __x._M_root == __y._M_root);
}

inline bool operator!= (const MNPtrProxy& __x,
                        const MNPtrProxy& __y)
{
  return !(__x == __y);
}


#endif /* _R_PTR_PROXY_H */

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