modules/up/src/gnug++/CacheKey.CacheValue.AVLMap.h
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FUNCTIONS
This source file includes following functions.
- CacheKeyCacheValueAVLNode
- CacheKeyCacheValueAVLNode
- CacheKeyCacheValueAVLMap
- CacheKeyCacheValueAVLMap
- CacheKeyCacheValueAVLMap
- first
- last
- next
- prev
- key
- contents
- clear
- contains
// This may look like C code, but it is really -*- C++ -*-
/*
Copyright (C) 1988 Free Software Foundation
written by Doug Lea (dl@rocky.oswego.edu)
This file is part of the GNU C++ Library. This library is free
software; you can redistribute it and/or modify it under the terms of
the GNU Library General Public License as published by the Free
Software Foundation; either version 2 of the License, or (at your
option) any later version. This library is distributed in the hope
that it will be useful, but WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the GNU Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef _CacheKeyCacheValueAVLMap_h
#ifdef __GNUG__
#pragma interface
#endif
#define _CacheKeyCacheValueAVLMap_h 1
#include "CacheKey.CacheValue.Map.h"
struct CacheKeyCacheValueAVLNode
{
CacheKeyCacheValueAVLNode* lt;
CacheKeyCacheValueAVLNode* rt;
CacheKey item;
CacheValue cont;
char stat;
CacheKeyCacheValueAVLNode(CacheKey h, CacheValue& c,
CacheKeyCacheValueAVLNode* l=0, CacheKeyCacheValueAVLNode* r=0);
~CacheKeyCacheValueAVLNode();
};
inline CacheKeyCacheValueAVLNode::CacheKeyCacheValueAVLNode(CacheKey h, CacheValue& c,
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CacheKeyCacheValueAVLNode* l, CacheKeyCacheValueAVLNode* r)
:lt(l), rt(r), item(h), cont(c), stat(0) {}
inline CacheKeyCacheValueAVLNode::~CacheKeyCacheValueAVLNode() {}
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typedef CacheKeyCacheValueAVLNode* CacheKeyCacheValueAVLNodePtr;
class CacheKeyCacheValueAVLMap : public CacheKeyCacheValueMap
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{
protected:
CacheKeyCacheValueAVLNode* root;
CacheKeyCacheValueAVLNode* leftmost();
CacheKeyCacheValueAVLNode* rightmost();
CacheKeyCacheValueAVLNode* pred(CacheKeyCacheValueAVLNode* t);
CacheKeyCacheValueAVLNode* succ(CacheKeyCacheValueAVLNode* t);
void _kill(CacheKeyCacheValueAVLNode* t);
void _add(CacheKeyCacheValueAVLNode*& t);
void _del(CacheKeyCacheValueAVLNode* p, CacheKeyCacheValueAVLNode*& t);
public:
CacheKeyCacheValueAVLMap(CacheValue& dflt);
CacheKeyCacheValueAVLMap(CacheKeyCacheValueAVLMap& a);
inline ~CacheKeyCacheValueAVLMap();
CacheValue& operator [] (CacheKey key);
void del(CacheKey key);
inline Pix first();
inline void next(Pix& i);
inline CacheKey& key(Pix i);
inline CacheValue& contents(Pix i);
Pix seek(CacheKey key);
inline int contains(CacheKey key);
inline void clear();
Pix last();
void prev(Pix& i);
int OK();
};
inline CacheKeyCacheValueAVLMap::~CacheKeyCacheValueAVLMap()
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{
_kill(root);
}
inline CacheKeyCacheValueAVLMap::CacheKeyCacheValueAVLMap(CacheValue& dflt) :CacheKeyCacheValueMap(dflt)
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{
root = 0;
}
inline Pix CacheKeyCacheValueAVLMap::first()
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{
return Pix(leftmost());
}
inline Pix CacheKeyCacheValueAVLMap::last()
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{
return Pix(rightmost());
}
inline void CacheKeyCacheValueAVLMap::next(Pix& i)
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{
if (i != 0) i = Pix(succ((CacheKeyCacheValueAVLNode*)i));
}
inline void CacheKeyCacheValueAVLMap::prev(Pix& i)
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{
if (i != 0) i = Pix(pred((CacheKeyCacheValueAVLNode*)i));
}
inline CacheKey& CacheKeyCacheValueAVLMap::key(Pix i)
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{
if (i == 0) error("null Pix");
return ((CacheKeyCacheValueAVLNode*)i)->item;
}
inline CacheValue& CacheKeyCacheValueAVLMap::contents(Pix i)
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{
if (i == 0) error("null Pix");
return ((CacheKeyCacheValueAVLNode*)i)->cont;
}
inline void CacheKeyCacheValueAVLMap::clear()
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{
_kill(root);
count = 0;
root = 0;
}
inline int CacheKeyCacheValueAVLMap::contains(CacheKey key)
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{
return seek(key) != 0;
}
#endif