aapl/avlimelkey.h

   1 /*
   2  *  Copyright 2002 Adrian Thurston <thurston@cs.queensu.ca>
   3  */
   4
   5 /*  This file is part of Aapl.
   6  *
   7  *  Aapl is free software; you can redistribute it and/or modify it under the
   8  *  terms of the GNU Lesser General Public License as published by the Free
   9  *  Software Foundation; either version 2.1 of the License, or (at your option)
  10  *  any later version.
  11  *
  12  *  Aapl is distributed in the hope that it will be useful, but WITHOUT ANY
  13  *  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  14  *  FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for
  15  *  more details.
  16  *
  17  *  You should have received a copy of the GNU Lesser General Public License
  18  *  along with Aapl; if not, write to the Free Software Foundation, Inc., 59
  19  *  Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20  */
  21
  22 #ifndef _AAPL_AVLIMELKEY_H
  23 #define _AAPL_AVLIMELKEY_H
  24
  25 #include "compare.h"
  26 #include "dlistmel.h"
  27
  28 /**
  29  * \addtogroup avlitree
  30  * @{
  31  */
  32
  33 /**
  34  * \class AvliMelKey
  35  * \brief Linked AVL tree for element appearing in multiple trees with different keys.
  36  *
  37  * AvliMelKey is similar to AvliMel, except that an additional template
  38  * parameter, BaseKey, is provided for resolving ambiguous references to
  39  * getKey(). This means that if an element is stored in multiple trees, each
  40  * tree can use a different key for ordering the elements in it. Using
  41  * AvliMelKey an array of data structures can be indexed with an O(log(n))
  42  * search on two or more of the values contained within it and without
  43  * allocating any additional data.
  44  *
  45  * AvliMelKey does not assume ownership of elements in the tree. The destructor
  46  * will not delete the elements. If the user wishes to explicitly deallocate
  47  * all the items in the tree the empty() routine is available.
  48  *
  49  * \include ex_avlimelkey.cpp
  50  */
  51
  52 /*@}*/
  53
  54 #define BASE_EL(name) BaseEl::name
  55 #define BASEKEY(name) BaseKey::name
  56 #define BASELIST DListMel< Element, BaseEl >
  57 #define AVLMEL_CLASSDEF class Element, class Key, class BaseEl, \
  58                 class BaseKey, class Compare = CmpOrd<Key>
  59 #define AVLMEL_TEMPDEF class Element, class Key, class BaseEl, \
  60                 class BaseKey, class Compare
  61 #define AVLMEL_TEMPUSE Element, Key, BaseEl, BaseKey, Compare
  62 #define AvlTree AvliMelKey
  63 #define WALKABLE
  64
  65 #include "avlcommon.h"
  66
  67 #undef BASE_EL
  68 #undef BASEKEY
  69 #undef BASELIST
  70 #undef AVLMEL_CLASSDEF
  71 #undef AVLMEL_TEMPDEF
  72 #undef AVLMEL_TEMPUSE
  73 #undef AvlTree
  74 #undef WALKABLE
  75
  76 #endif /* _AAPL_AVLIMELKEY_H */