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- /*****************************************************************************
- * $Id: String_int_AVLMap.h,v 1.1.1.1 1993/02/04 15:17:49 ak Exp $
- *****************************************************************************
- * $Log: String_int_AVLMap.h,v $
- * Revision 1.1.1.1 1993/02/04 15:17:49 ak
- * Please Edit this file to contain the RCS log information
- * to be associated with this file (please remove these lines)
- *
- * Revision 1.1 1993/02/04 15:17:47 ak
- * Initial revision
- *
- *****************************************************************************/
-
- // 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, 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
- #ifndef _StringintAVLMap_h
- #ifdef __GNUG__
- #pragma interface
- #endif
- #define _StringintAVLMap_h 1
-
- #include "String_int_Map.h"
-
- struct StringintAVLNode
- {
- StringintAVLNode* lt;
- StringintAVLNode* rt;
- String item;
- int cont;
- char stat;
- StringintAVLNode(String& h, int c,
- StringintAVLNode* l=0, StringintAVLNode* r=0);
- ~StringintAVLNode();
- };
-
- inline StringintAVLNode::StringintAVLNode(String& h, int c,
- StringintAVLNode* l, StringintAVLNode* r)
- :item(h), cont(c), lt(l), rt(r), stat(0) {}
-
- inline StringintAVLNode::~StringintAVLNode() {}
-
- typedef StringintAVLNode* StringintAVLNodePtr;
-
-
- class StringintAVLMap : public StringintMap
- {
- protected:
- StringintAVLNode* root;
-
- StringintAVLNode* leftmost();
- StringintAVLNode* rightmost();
- StringintAVLNode* pred(StringintAVLNode* t);
- StringintAVLNode* succ(StringintAVLNode* t);
- void _kill(StringintAVLNode* t);
- void _add(StringintAVLNode*& t);
- void _del(StringintAVLNode* p, StringintAVLNode*& t);
-
- public:
- StringintAVLMap(int dflt);
- StringintAVLMap(StringintAVLMap& a);
- ~StringintAVLMap();
-
- int& operator [] (String& key);
-
- void del(String& key);
-
- Pix first();
- void next(Pix& i);
- String& key(Pix i);
- int& contents(Pix i);
-
- Pix seek(String& key);
- int contains(String& key);
-
- void clear();
-
- Pix last();
- void prev(Pix& i);
-
- int OK();
- };
-
- inline StringintAVLMap::~StringintAVLMap()
- {
- _kill(root);
- }
-
- inline StringintAVLMap::StringintAVLMap(int dflt) :StringintMap(dflt)
- {
- root = 0;
- }
-
- inline Pix StringintAVLMap::first()
- {
- return Pix(leftmost());
- }
-
- inline Pix StringintAVLMap::last()
- {
- return Pix(rightmost());
- }
-
- inline void StringintAVLMap::next(Pix& i)
- {
- if (i != 0) i = Pix(succ((StringintAVLNode*)i));
- }
-
- inline void StringintAVLMap::prev(Pix& i)
- {
- if (i != 0) i = Pix(pred((StringintAVLNode*)i));
- }
-
- inline String& StringintAVLMap::key(Pix i)
- {
- if (i == 0) error("null Pix");
- return ((StringintAVLNode*)i)->item;
- }
-
- inline int& StringintAVLMap::contents(Pix i)
- {
- if (i == 0) error("null Pix");
- return ((StringintAVLNode*)i)->cont;
- }
-
- inline void StringintAVLMap::clear()
- {
- _kill(root);
- count = 0;
- root = 0;
- }
-
- inline int StringintAVLMap::contains(String& key)
- {
- return seek(key) != 0;
- }
-
- #endif
-