/*
 * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005 Yokogawa Electric Corporation,
 * YDC Corporation, IPA (Information-technology Promotion Agency, Japan).
 * All rights reserved.
 * 
 * Redistribution and use of this software in source and binary forms, with 
 * or without modification, are permitted provided that the following 
 * conditions and disclaimer are agreed and accepted by the user:
 * 
 * 1. Redistributions of source code must retain the above copyright 
 * notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright 
 * notice, this list of conditions and the following disclaimer in the 
 * documentation and/or other materials provided with the distribution.
 * 
 * 3. Neither the names of the copyrighters, the name of the project which 
 * is related to this software (hereinafter referred to as "project") nor 
 * the names of the contributors may be used to endorse or promote products 
 * derived from this software without specific prior written permission.
 * 
 * 4. No merchantable use may be permitted without prior written 
 * notification to the copyrighters. However, using this software for the 
 * purpose of testing or evaluating any products including merchantable 
 * products may be permitted without any notification to the copyrighters.
 * 
 * 
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHTERS, THE PROJECT AND 
 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING 
 * BUT NOT LIMITED THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.  IN NO EVENT SHALL THE 
 * COPYRIGHTERS, THE PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT,STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 
 * THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $TAHI: v6eval/lib/Cm/BtSet.h,v 1.5 2001/10/12 04:56:13 tanaka Exp $
 */
#ifndef _Cm_BtSet_h_
#define	_Cm_BtSet_h_	1
#include "BtArray.h"
struct BtSet:public BtArray {
private:
	u_long noOfElements_;
public:
	BtSet& operator=(const BtSet&);
	BtSet(u_long size=defaultArraySize);
	BtSet(const BtSet &);
	BtSet(ELEMENTS elm,...);
virtual	~BtSet();

virtual	u_long size() const;
virtual	u_long noOfElements() const;
virtual	ELEMENTS add(ELEMENTS o);
virtual	ELEMENTS filter(ELEMENTS o);
virtual	ELEMENTS replace(ELEMENTS o);
virtual	ELEMENTS remove(const ELEMENTS o);
virtual	void deleteContents();
//----------------------------------------------------------------------
// Abstract Element type
virtual	uint32_t hashElement(const ELEMENTS o) const;
virtual	bool isSame(const ELEMENTS c,const ELEMENTS o) const;
//----------------------------------------------------------------------
// GROUP OPERATION
protected:
	ELEMENTS findAt(const ELEMENTS o,u_long& s) const;
	ELEMENTS addIfAbsent(ELEMENTS o,u_long& s);
	void rehash(u_long n);
	void expand();
};
#endif