120ca87015
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
// Wild Magic Source Code
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// David Eberly
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// http://www.geometrictools.com
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// Copyright (c) 1998-2007
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 of the License, or (at
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// your option) any later version. The license is available for reading at
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// either of the locations:
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// http://www.gnu.org/copyleft/lgpl.html
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// http://www.geometrictools.com/License/WildMagicLicense.pdf
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// The license applies to versions 0 through 4 of Wild Magic.
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//
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// Version: 4.0.0 (2006/06/28)
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#ifndef WM4TSTRINGHASHTABLE_H
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#define WM4TSTRINGHASHTABLE_H
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#include "Wm4FoundationLIB.h"
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// The class TVALUE is either native data or is class data that has the
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// following member functions:
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// TVALUE::TVALUE ()
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// TVALUE& TVALUE::operator= (const TVALUE&)
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#include "Wm4System.h"
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namespace Wm4
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{
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template <class TVALUE>
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class TStringHashTable
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{
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public:
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// construction and destruction
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TStringHashTable (int iTableSize);
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~TStringHashTable ();
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// element access
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int GetQuantity () const;
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// insert a key-value pair into the hash table
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bool Insert (const std::string& rkKey, const TVALUE& rtValue);
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// search for a key and returns it value (null, if key does not exist)
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TVALUE* Find (const std::string& rkKey) const;
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// remove key-value pairs from the hash table
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bool Remove (const std::string& rkKey);
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void RemoveAll ();
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// linear traversal of table
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TVALUE* GetFirst (std::string* pkKey) const;
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TVALUE* GetNext (std::string* pkKey) const;
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private:
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class HashItem
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{
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public:
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HashItem () : m_kKey("") { /**/ }
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std::string m_kKey;
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TVALUE m_tValue;
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HashItem* m_pkNext;
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};
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// key-to-index construction
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int HashFunction (const std::string& rkKey) const;
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// hash table
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int m_iTableSize;
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int m_iQuantity;
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HashItem** m_apkTable;
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// iterator for traversal
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mutable int m_iIndex;
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mutable HashItem* m_pkItem;
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};
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}
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#include "Wm4TStringHashTable.inl"
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#endif
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