Source: sysadm/Hashable.h
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/*
* Copyright (c) 1995, 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2.1 of the GNU Lesser General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program
* with other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307,
* USA.
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or http://www.sgi.com/
*
* For further information regarding this notice, see:
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*/
#ifndef _SYSADM_HASHABLE_H
#define _SYSADM_HASHABLE_H
#include <sysadm/sysadm.h>
BEGIN_NAMESPACE(sysadm);
typedef unsigned long HashValue;
class Hashable {
public:
inline virtual ~Hashable(void);
virtual bool operator==(const Hashable & other) const = 0;
virtual bool operator!=(const Hashable & other) const = 0;
virtual HashValue getHashValue(void) const = 0;
virtual Hashable* clone() const = 0;
protected:
inline Hashable(void);
virtual void doNothing(); // makes sure vtbl gets put in right place
Hashable(const Hashable & copy);
Hashable & operator=(const Hashable & copy);
};
class PointerKey : public Hashable {
public:
inline PointerKey(void* key);
inline virtual ~PointerKey(void);
virtual bool operator==(const Hashable & other) const;
virtual bool operator!=(const Hashable & other) const;
inline virtual HashValue getHashValue(void) const;
inline virtual Hashable* clone() const;
private:
void* _key;
};
END_NAMESPACE(sysadm);
#include <sysadm/HashableI.h>
#endif // _SYSADM_HASHABLE_H
Generated by: rusty@irem on Mon Sep 18 18:07:52 2000, using kdoc 2.0a36. |