2 * Copyright 2002 Adrian Thurston <thurston@complang.org>
5 /* This file is part of Aapl.
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)
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
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
22 #ifndef _AAPL_BSTMAP_H
23 #define _AAPL_BSTMAP_H
33 * \brief Element for BstMap.
35 * Stores the key and value pair.
37 template <class Key, class Value> struct BstMapEl
40 BstMapEl(const Key &key) : key(key) {}
41 BstMapEl(const Key &key, const Value &val) : key(key), value(val) {}
46 /** \brief The value. */
61 * \brief Binary search table for key and value pairs.
63 * BstMap stores key and value pairs in each element. The key and value can be
64 * any type. A compare class for the key must be supplied.
69 #define BST_TEMPL_DECLARE class Key, class Value, \
70 class Compare = CmpOrd<Key>, class Resize = ResizeExpn
71 #define BST_TEMPL_DEF class Key, class Value, class Compare, class Resize
72 #define BST_TEMPL_USE Key, Value, Compare, Resize
73 #define GET_KEY(el) ((el).key)
74 #define BstTable BstMap
75 #define Element BstMapEl<Key, Value>
78 #include "bstcommon.h"
80 #undef BST_TEMPL_DECLARE
89 * \fn BstMap::insert(const Key &key, BstMapEl<Key, Value> **lastFound)
90 * \brief Insert the given key.
92 * If the given key does not already exist in the table then a new element
93 * having key is inserted. They key copy constructor and value default
94 * constructor are used to place the pair in the table. If lastFound is given,
95 * it is set to the new entry created. If the insert fails then lastFound is
96 * set to the existing pair of the same key.
98 * \returns The new element created upon success, null upon failure.
102 * \fn BstMap::insertMulti(const Key &key)
103 * \brief Insert the given key even if it exists already.
105 * If the key exists already then the new element having key is placed next
106 * to some other pair of the same key. InsertMulti cannot fail. The key copy
107 * constructor and the value default constructor are used to place the pair in
110 * \returns The new element created.
113 #endif /* _AAPL_BSTMAP_H */