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@@ -1,37 +1,16 @@
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-/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: t; c-basic-offset: 3 -*- */
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-/*================================================================
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+/*!
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+ * \file include/Map.h
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+ * \brief Template Map
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*
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- * Project : Freyja
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- * Author : Mongoose
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- * Website : http://www.westga.edu/~stu7440/
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- * Email : stu7440@westga.edu
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- * Object : Map
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- * License : No use w/o permission (C) 2000-2002 Mongoose
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- * Comments: mtk Template list
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+ * Using RBTree and list overlay for faster access
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*
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- * This file was generated using Mongoose's C++
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- * template generator script. <stu7440@westga.edu>
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+ * Access: O(1)/O(n)/O(logn) ?
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+ * Insert: O(nlogn) ?
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+ * Remove: O(nlogn) ?
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*
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- *-- History ------------------------------------------------
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- *
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- * 2002.02.19:
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- * Mongoose - Using RBTree and list overlay for faster access
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- *
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- * Access: O(1)/O(n)/O(logn) ?
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- * Insert: O(nlogn) ?
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- * Remove: O(nlogn) ?
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- *
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- * 2002.02.16:
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- * Mongoose - Binary tree overlay started... at 0300 /_\ Zzzz
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- *
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- * 2002.02.01:
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- * Mongoose - Dug out of cobwebs and fixed up
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- * Yes, I believe in code reuse! =)
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- *
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- * 2000.10.26:
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- * Mongoose - Created
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- ================================================================*/
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-
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+ * \author Mongoose
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+ * \author xythobuz
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+ */
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#ifndef _MAP_H_
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#define _MAP_H_
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#include <memory_test.h>
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#endif
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-
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-
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-template <class K, class D> class MapNode
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-{
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+/*!
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+ * \brief Template class encapsulating a single map node
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+ * \tparam K key type
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+ * \tparam D data type
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+ */
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+template <class K, class D> class MapNode {
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public:
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- MapNode(K key, D data)
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- {
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+ /*!
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+ * \brief Construct a MapNode
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+ * \param key key of this Node
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+ * \param data data of this Node
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+ */
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+ MapNode(K key, D data) {
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_data = data;
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_key = key;
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_next = NULL;
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}
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-
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- ~MapNode()
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- {
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+ /*!
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+ * \brief Deconstruct a MapNode
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+ */
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+ ~MapNode() {
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}
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-
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- void Key(K key)
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- {
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+ /*!
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+ * \brief Set the key of this MapNode
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+ * \param key new key
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+ */
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+ void Key(K key) {
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_key = key;
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}
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-
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- K Key()
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- {
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+ /*!
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+ * \brief Get the key of this MapNode
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+ * \returns key
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+ */
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+ K Key() {
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return _key;
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}
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-
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- void Data(D data)
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- {
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- _data = data;
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+ /*!
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+ * \brief Set the data of this MapNode
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+ * \param data new data
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+ */
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+ void Data(D data) {
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+ _data = data;
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}
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-
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- D Data()
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- {
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+ /*!
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+ * \brief Get the data of this MapNode
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+ * \returns data
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+ */
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+ D Data() {
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return _data;
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}
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-
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- MapNode<K, D> *Next()
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- {
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+ /*!
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+ * \brief Get the next MapNode in the Map
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+ * \returns next pointer
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+ */
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+ MapNode<K, D> *Next() {
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return _next;
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}
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-
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- void Next(MapNode<K, D> *next)
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- {
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+ /*!
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+ * \brief Set the next MapNode in the Map
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+ * \param next new next pointer
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+ */
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+ void Next(MapNode<K, D> *next) {
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_next = next;
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}
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private:
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- MapNode<K, D> *_next;
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-
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- K _key;
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-
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- D _data;
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+ MapNode<K, D> *_next; //!< Next pointer
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+ K _key; //!< Key of the MapNode
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+ D _data; //!< Data of the MapNode
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};
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-
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-template <class K, class D> class Map
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-{
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+/*!
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+ * \brief Template class representing a Map, mapping data to a key.
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+ * \tparam K key type
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+ * \tparam D data type
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+ */
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+template <class K, class D> class Map {
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public:
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- Map()
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- {
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+ /*!
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+ * \brief Construct a Map
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+ */
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+ Map() {
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UnSetError();
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_num_items = 0;
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_head = NULL;
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_cache = NULL;
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}
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-
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- ~Map()
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- {
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+ /*!
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+ * \brief Deconstruct a Map
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+ * \sa Map::Clear()
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+ */
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+ ~Map() {
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Clear();
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}
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-
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- void Clear()
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- {
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+ /*!
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+ * \brief Deletes every item in the Map. Clears error flag.
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+ */
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+ void Clear() {
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UnSetError();
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_num_items = 0;
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_cache = NULL;
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-
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- while (_head)
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- {
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+ while (_head) {
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_current = _head;
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_head = _head->Next();
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delete _current;
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}
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-
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_tree.Clear();
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}
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-
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- void SetError()
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- {
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+ /*!
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+ * \brief Set the error flag
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+ */
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+ void SetError() {
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_error = true;
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}
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-
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- void UnSetError()
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- {
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+ /*!
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+ * \brief Unset the error flag
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+ */
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+ void UnSetError() {
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_error = false;
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}
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-
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- bool GetError()
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- {
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+ /*!
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+ * \brief Get the error flag
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+ * \returns error flag
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+ */
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+ bool GetError() {
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return _error;
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}
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-
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- D FindDataByKey(K key)
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- {
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+ /*!
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+ * \brief Search for data with a key. Sets error flag if nothing is found.
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+ * \param key key to search for
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+ * \returns data matching key or 0
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+ */
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+ D FindDataByKey(K key) {
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MapNode<K, D> *current = NULL;
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MapNode<K, D> *next = NULL;
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- if (_head)
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- {
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+ if (_head) {
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UnSetError();
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- if (_cache)
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- {
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+ if (_cache) {
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next = _cache->Next();
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}
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// Mongoose 2002.02.19, Optimize for sequential searches
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- if (next && key == next->Key())
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- {
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+ if (next && key == next->Key()) {
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current = next;
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- }
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- else // Mongoose 2002.02.19, Use search algorithm otherwise
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- {
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+ } else { // Mongoose 2002.02.19, Use search algorithm otherwise
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current = _tree.SearchByKey(key, &_error);
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if (_error)
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return false;
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}
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- if (current)
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- {
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+ if (current) {
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_cache = _current = current;
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return current->Data();
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}
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@@ -203,26 +205,31 @@ public:
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return 0;
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}
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-
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- D operator [] (K key)
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- {
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+ /*!
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+ * \brief Search for data with a key
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+ * \param key key to search for
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+ * \returns data matching key or 0
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+ * \sa Map::FindDataByKey()
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+ */
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+ D operator [] (K key) {
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return FindDataByKey(key);
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}
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-
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- K FindKeyByData(D data)
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- {
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+ /*!
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+ * \brief Search for a key with specific data. Sets error flag if nothing is found.
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+ * \param data data to search for
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+ * \returns key matching data or 0
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+ */
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+ K FindKeyByData(D data) {
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MapNode<K, D> *current = _head;
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MapNode<K, D> *last = NULL;
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UnSetError();
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- while (current)
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- {
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+ while (current) {
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// Found
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- if (current->Data() == data)
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- {
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+ if (current->Data() == data) {
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_cache = current;
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return current->Key();
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}
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@@ -236,31 +243,32 @@ public:
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return 0;
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}
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-
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- D getCache()
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- {
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- if (_cache == 0x0)
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- {
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+ /*!
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+ * \brief Returns data of the cached MapNode
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+ * \returns cached data
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+ */
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+ D getCache() {
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+ if (_cache == 0x0) {
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printf("Map::getCache> Bad request - should segfault\n");
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}
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return _cache->Data();
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}
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-
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- bool findKey(K key)
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- {
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+ /*!
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+ * \brief Check if a key is in this map. Sets error flag if nothing is found.
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+ * \returns true if the key is in the map, false otherwise
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+ * \sa Tree:SearchByKey()
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+ */
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+ bool findKey(K key) {
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MapNode<K, D> *current = NULL;
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MapNode<K, D> *next = NULL;
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- if (_head)
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- {
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+ if (_head) {
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UnSetError();
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- if (_cache)
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- {
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- if (_cache->Key() == key)
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- {
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+ if (_cache) {
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+ if (_cache->Key() == key) {
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return true;
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}
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@@ -268,17 +276,13 @@ public:
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}
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// Mongoose 2002.02.19, Optimize for sequential searches
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- if (next && key == next->Key())
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- {
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+ if (next && key == next->Key()) {
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current = next;
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- }
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- else // Mongoose 2002.02.19, Use search algorithm otherwise
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- {
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+ } else { // Mongoose 2002.02.19, Use search algorithm otherwise
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current = _tree.SearchByKey(key, &_error);
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}
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- if (current)
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- {
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+ if (current) {
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_cache = _current = current;
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//curData = current->Data();
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return true;
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@@ -289,48 +293,48 @@ public:
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293
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return false;
|
290
|
294
|
}
|
291
|
295
|
|
292
|
|
-
|
293
|
|
- bool Add(K key, D data)
|
294
|
|
- {
|
|
296
|
+ /*!
|
|
297
|
+ * \brief Add a Key-Data pair to the Map, creating a new MapNode. Clears error flag.
|
|
298
|
+ * \param key key to add
|
|
299
|
+ * \param data to add
|
|
300
|
+ * \returns true on success, false if there is not enough memory
|
|
301
|
+ */
|
|
302
|
+ bool Add(K key, D data) {
|
295
|
303
|
MapNode<K, D> *node;
|
296
|
304
|
|
297
|
|
-
|
298
|
305
|
UnSetError();
|
299
|
306
|
node = new MapNode<K, D>(key, data);
|
300
|
307
|
_num_items++;
|
301
|
308
|
return Add(node);
|
302
|
309
|
}
|
303
|
310
|
|
304
|
|
-
|
305
|
|
- bool Add(MapNode<K, D> *node)
|
306
|
|
- {
|
|
311
|
+ /*!
|
|
312
|
+ * \brief Add a MapNode to the Map. Clears error flag on success.
|
|
313
|
+ * \param node node to add
|
|
314
|
+ * \returns true on success, false if node is NULL
|
|
315
|
+ * \sa Tree:Insert()
|
|
316
|
+ */
|
|
317
|
+ bool Add(MapNode<K, D> *node) {
|
307
|
318
|
MapNode<K, D> *current = _head;
|
308
|
319
|
MapNode<K, D> *last = NULL;
|
309
|
320
|
|
310
|
|
-
|
311
|
321
|
if (!node)
|
312
|
322
|
return false;
|
313
|
323
|
|
314
|
324
|
UnSetError();
|
315
|
325
|
|
316
|
|
- if (_head)
|
317
|
|
- {
|
|
326
|
+ if (_head) {
|
318
|
327
|
current = _head;
|
319
|
328
|
last = NULL;
|
320
|
329
|
|
321
|
|
- while (current)
|
322
|
|
- {
|
|
330
|
+ while (current) {
|
323
|
331
|
// Prepend
|
324
|
|
- if (current->Key() > node->Key())
|
325
|
|
- {
|
|
332
|
+ if (current->Key() > node->Key()) {
|
326
|
333
|
node->Next(current);
|
327
|
334
|
|
328
|
|
- if (current == _head)
|
329
|
|
- {
|
|
335
|
+ if (current == _head) {
|
330
|
336
|
_head = node;
|
331
|
|
- }
|
332
|
|
- else if (last)
|
333
|
|
- {
|
|
337
|
+ } else if (last) {
|
334
|
338
|
last->Next(node);
|
335
|
339
|
}
|
336
|
340
|
|
|
@@ -344,9 +348,7 @@ public:
|
344
|
348
|
|
345
|
349
|
// Append
|
346
|
350
|
last->Next(node);
|
347
|
|
- }
|
348
|
|
- else
|
349
|
|
- {
|
|
351
|
+ } else {
|
350
|
352
|
_head = node;
|
351
|
353
|
}
|
352
|
354
|
|
|
@@ -354,33 +356,28 @@ public:
|
354
|
356
|
return true;
|
355
|
357
|
}
|
356
|
358
|
|
357
|
|
-
|
358
|
|
- void RemoveByKey(K key)
|
359
|
|
- {
|
|
359
|
+ /*!
|
|
360
|
+ * \brief Remove item with the specified key. Sets error flag if nothing is removed.
|
|
361
|
+ * \param key key to remove
|
|
362
|
+ */
|
|
363
|
+ void RemoveByKey(K key) {
|
360
|
364
|
MapNode<K, D> *current = _head;
|
361
|
365
|
MapNode<K, D> *last = NULL;
|
362
|
366
|
|
363
|
|
-
|
364
|
367
|
UnSetError();
|
365
|
368
|
|
366
|
369
|
_cache = NULL;
|
367
|
370
|
|
368
|
|
- while (current)
|
369
|
|
- {
|
|
371
|
+ while (current) {
|
370
|
372
|
// Remove
|
371
|
|
- if (current->Key() == key)
|
372
|
|
- {
|
373
|
|
- if (current == _head)
|
374
|
|
- {
|
|
373
|
+ if (current->Key() == key) {
|
|
374
|
+ if (current == _head) {
|
375
|
375
|
_head = current->Next();
|
376
|
|
- }
|
377
|
|
- else
|
378
|
|
- {
|
|
376
|
+ } else {
|
379
|
377
|
last->Next(current->Next());
|
380
|
378
|
}
|
381
|
379
|
|
382
|
|
- if (_current == current)
|
383
|
|
- {
|
|
380
|
+ if (_current == current) {
|
384
|
381
|
_current = NULL;
|
385
|
382
|
}
|
386
|
383
|
|
|
@@ -398,13 +395,14 @@ public:
|
398
|
395
|
SetError();
|
399
|
396
|
}
|
400
|
397
|
|
401
|
|
-
|
402
|
|
- void RemoveByData(D data)
|
403
|
|
- {
|
|
398
|
+ /*!
|
|
399
|
+ * \brief Remove item with the specified data. Sets error flag if nothing is removed.
|
|
400
|
+ * \param data data to remove
|
|
401
|
+ */
|
|
402
|
+ void RemoveByData(D data) {
|
404
|
403
|
MapNode<K, D> *current = _head;
|
405
|
404
|
MapNode<K, D> *last = NULL;
|
406
|
405
|
|
407
|
|
-
|
408
|
406
|
UnSetError();
|
409
|
407
|
|
410
|
408
|
_cache = NULL;
|
|
@@ -412,19 +410,14 @@ public:
|
412
|
410
|
while (current)
|
413
|
411
|
{
|
414
|
412
|
// Remove
|
415
|
|
- if (current->Data() == data)
|
416
|
|
- {
|
417
|
|
- if (current == _head)
|
418
|
|
- {
|
|
413
|
+ if (current->Data() == data) {
|
|
414
|
+ if (current == _head) {
|
419
|
415
|
_head = current->Next();
|
420
|
|
- }
|
421
|
|
- else
|
422
|
|
- {
|
|
416
|
+ } else {
|
423
|
417
|
last->Next(current->Next());
|
424
|
418
|
}
|
425
|
419
|
|
426
|
|
- if (_current == current)
|
427
|
|
- {
|
|
420
|
+ if (_current == current) {
|
428
|
421
|
_current = NULL;
|
429
|
422
|
}
|
430
|
423
|
|
|
@@ -442,41 +435,40 @@ public:
|
442
|
435
|
SetError();
|
443
|
436
|
}
|
444
|
437
|
|
445
|
|
-
|
446
|
|
- bool Empty()
|
447
|
|
- {
|
|
438
|
+ /*!
|
|
439
|
+ * \brief Check if the Map is empty
|
|
440
|
+ * \returns true if Map is empty, false otherwise
|
|
441
|
+ */
|
|
442
|
+ bool Empty() {
|
448
|
443
|
return (_head == NULL);
|
449
|
444
|
}
|
450
|
445
|
|
451
|
|
-
|
452
|
|
- unsigned int count()
|
453
|
|
- {
|
454
|
|
- return _num_items;
|
455
|
|
- }
|
456
|
|
-
|
457
|
|
- unsigned int NumItems()
|
458
|
|
- {
|
|
446
|
+ /*!
|
|
447
|
+ * \brief Returns number of items in the Map
|
|
448
|
+ * \returns number of items
|
|
449
|
+ */
|
|
450
|
+ unsigned int NumItems() {
|
459
|
451
|
return _num_items;
|
460
|
452
|
}
|
461
|
453
|
|
462
|
|
-
|
463
|
|
- void Print(void (*print_key_func)(K), void (*print_data_func)(D))
|
464
|
|
- {
|
|
454
|
+ /*!
|
|
455
|
+ * \brief Print the Map. Sets error flag if one or both functions aren't provided.
|
|
456
|
+ * \param print_key_func function that prints a key
|
|
457
|
+ * \param print_data_func function that prints the data
|
|
458
|
+ */
|
|
459
|
+ void Print(void (*print_key_func)(K), void (*print_data_func)(D)) {
|
465
|
460
|
MapNode<K, D> *current = _head;
|
466
|
461
|
|
467
|
|
-
|
468
|
462
|
UnSetError();
|
469
|
463
|
|
470
|
|
- if (!print_key_func || !print_data_func)
|
471
|
|
- {
|
|
464
|
+ if (!print_key_func || !print_data_func) {
|
472
|
465
|
SetError();
|
473
|
466
|
return;
|
474
|
467
|
}
|
475
|
468
|
|
476
|
469
|
printf(" [%i] {\n", _num_items);
|
477
|
470
|
|
478
|
|
- while (current)
|
479
|
|
- {
|
|
471
|
+ while (current) {
|
480
|
472
|
printf("(");
|
481
|
473
|
(*print_key_func)(current->Key());
|
482
|
474
|
printf(", ");
|
|
@@ -490,48 +482,61 @@ public:
|
490
|
482
|
printf(" }\n");
|
491
|
483
|
}
|
492
|
484
|
|
493
|
|
-
|
494
|
|
- void Reset()
|
495
|
|
- {
|
|
485
|
+ /*!
|
|
486
|
+ * \brief Reset the Map iterator
|
|
487
|
+ */
|
|
488
|
+ void Reset() {
|
496
|
489
|
_current = _head;
|
497
|
490
|
_cache = _head;
|
498
|
491
|
}
|
499
|
492
|
|
500
|
|
-
|
501
|
|
- bool operator ++ (int)
|
502
|
|
- {
|
|
493
|
+ /*!
|
|
494
|
+ * \brief Iterate over the Map
|
|
495
|
+ * \returns true if there is a new current element
|
|
496
|
+ * \sa Map::Next()
|
|
497
|
+ */
|
|
498
|
+ bool operator ++ (int) {
|
503
|
499
|
return Next();
|
504
|
500
|
}
|
505
|
501
|
|
506
|
|
- bool operator ++ ()
|
507
|
|
- {
|
|
502
|
+ /*!
|
|
503
|
+ * \brief Iterate over the Map
|
|
504
|
+ * \returns true if there is a new current element
|
|
505
|
+ * \sa Map::Next()
|
|
506
|
+ */
|
|
507
|
+ bool operator ++ () {
|
508
|
508
|
return Next();
|
509
|
509
|
}
|
510
|
510
|
|
511
|
|
-
|
512
|
|
- bool Next()
|
513
|
|
- {
|
514
|
|
- if (_current)
|
515
|
|
- {
|
|
511
|
+ /*!
|
|
512
|
+ * \brief Iterate over the Map
|
|
513
|
+ * \returns true if there is a new current element
|
|
514
|
+ * \sa Map::Next()
|
|
515
|
+ */
|
|
516
|
+ bool Next() {
|
|
517
|
+ if (_current) {
|
516
|
518
|
_current = _current->Next();
|
517
|
519
|
}
|
518
|
520
|
|
519
|
521
|
return (_current != NULL);
|
520
|
522
|
}
|
521
|
523
|
|
522
|
|
-
|
523
|
|
- bool CurrentExists()
|
524
|
|
- {
|
|
524
|
+ /*!
|
|
525
|
+ * \brief Check if there is a current item in the iterator
|
|
526
|
+ * \returns true if the current item exists
|
|
527
|
+ */
|
|
528
|
+ bool CurrentExists() {
|
525
|
529
|
return (_current != 0);
|
526
|
530
|
}
|
527
|
531
|
|
528
|
|
-
|
529
|
|
- K CurrentKey()
|
530
|
|
- {
|
|
532
|
+ /*!
|
|
533
|
+ * \brief Returns the key of the current item. Sets error flag if there is no current item.
|
|
534
|
+ * \returns key or 0 if there is no current item
|
|
535
|
+ */
|
|
536
|
+ K CurrentKey() {
|
531
|
537
|
UnSetError();
|
532
|
538
|
|
533
|
|
- if (!_current)
|
534
|
|
- {
|
|
539
|
+ if (!_current) {
|
535
|
540
|
SetError();
|
536
|
541
|
return 0;
|
537
|
542
|
}
|
|
@@ -539,13 +544,14 @@ public:
|
539
|
544
|
return _current->Key();
|
540
|
545
|
}
|
541
|
546
|
|
542
|
|
-
|
543
|
|
- D Current()
|
544
|
|
- {
|
|
547
|
+ /*!
|
|
548
|
+ * \brief Returns the data of the current item. Sets error flag if there is no current item.
|
|
549
|
+ * \returns data or 0 if there is no current item
|
|
550
|
+ */
|
|
551
|
+ D Current() {
|
545
|
552
|
UnSetError();
|
546
|
553
|
|
547
|
|
- if (!_current)
|
548
|
|
- {
|
|
554
|
+ if (!_current) {
|
549
|
555
|
SetError();
|
550
|
556
|
return 0;
|
551
|
557
|
}
|
|
@@ -555,16 +561,11 @@ public:
|
555
|
561
|
|
556
|
562
|
private:
|
557
|
563
|
|
558
|
|
- unsigned int _num_items;
|
559
|
|
-
|
560
|
|
- bool _error;
|
561
|
|
-
|
562
|
|
- Tree<K, MapNode<K, D> *> _tree;
|
563
|
|
-
|
564
|
|
- MapNode<K, D> *_head;
|
565
|
|
-
|
566
|
|
- MapNode<K, D> *_current;
|
567
|
|
-
|
568
|
|
- MapNode<K, D> *_cache;
|
|
564
|
+ unsigned int _num_items; //!< Number of items in the Map
|
|
565
|
+ bool _error; //!< Error flag
|
|
566
|
+ Tree<K, MapNode<K, D> *> _tree; //!< Tree containing the MapNodes
|
|
567
|
+ MapNode<K, D> *_head; //!< First item of the Map
|
|
568
|
+ MapNode<K, D> *_current; //!< Current item for the iterator
|
|
569
|
+ MapNode<K, D> *_cache; //!< Cached item used by search & remove methods
|
569
|
570
|
};
|
570
|
571
|
#endif
|