third-party libs
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Benjamin Palko
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377
third-party/BugTrap-1.3-57bd515/source/ColHelper.h
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third-party/BugTrap-1.3-57bd515/source/ColHelper.h
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/*
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* This is a part of the BugTrap package.
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* Copyright (c) 2005-2009 IntelleSoft.
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* All rights reserved.
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*
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* Description: Prototypes of collection helpers.
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* Author: Maksim Pyatkovskiy.
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*
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* This source code is only intended as a supplement to the
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* BugTrap package reference and related electronic documentation
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* provided with the product. See these sources for detailed
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* information regarding the BugTrap package.
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*/
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#pragma once
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#include "StrHolder.h"
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#include "StrStream.h"
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/// Object instantiation traits.
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template <typename DATA_TYPE>
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class CObjectTraits
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{
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public:
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/// Calls the constructor of @a DATA_TYPE class by default.
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static void Constructor(DATA_TYPE& rData);
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/// Calls the destructor of @a DATA_TYPE class by default.
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static void Destructor(DATA_TYPE& rData);
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/// Calls the assignment operator of @a DATA_TYPE class by default.
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static void Assignment(DATA_TYPE& rDstData, const DATA_TYPE& rSrcData);
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};
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/**
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* @param rData - reference to the memory placement of new object.
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*/
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template <typename DATA_TYPE>
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inline void CObjectTraits<DATA_TYPE>::Constructor(DATA_TYPE& rData)
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{
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::new((void*)&rData) DATA_TYPE;
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}
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/**
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* @param rData - reference to the memory placement of deleted object.
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*/
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template <typename DATA_TYPE>
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inline void CObjectTraits<DATA_TYPE>::Destructor(DATA_TYPE& rData)
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{
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rData; rData.~DATA_TYPE();
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}
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/**
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* @param rDstData - reference to the memory placement of destination object.
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* @param rSrcData - reference to the memory placement of source object.
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*/
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template <typename DATA_TYPE>
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inline void CObjectTraits<DATA_TYPE>::Assignment(DATA_TYPE& rDstData, const DATA_TYPE& rSrcData)
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{
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rDstData = rSrcData;
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}
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/// Value initialization traits.
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template <typename DATA_TYPE, DATA_TYPE value = 0>
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class CValueTraits
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{
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public:
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/// Calls the constructor of @a DATA_TYPE by default.
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static void Constructor(DATA_TYPE& rData);
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/// Calls the destructor of @a DATA_TYPE by default
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static void Destructor(DATA_TYPE& rData);
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/// Calls the assignment operator of @a DATA_TYPE by default.
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static void Assignment(DATA_TYPE& rDstData, const DATA_TYPE& rSrcData);
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};
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/**
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* @param rData - reference to the memory placement of new object.
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*/
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template <typename DATA_TYPE, DATA_TYPE value>
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inline void CValueTraits<DATA_TYPE, value>::Constructor(DATA_TYPE& rData)
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{
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rData = value;
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}
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/**
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* @param rData - reference to the memory placement of deleted object.
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*/
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template <typename DATA_TYPE, DATA_TYPE value>
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inline void CValueTraits<DATA_TYPE, value>::Destructor(DATA_TYPE& /*rData*/)
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{
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}
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/**
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* @param rDstData - reference to the memory placement of destination object.
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* @param rSrcData - reference to the memory placement of source object.
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*/
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template <typename DATA_TYPE, DATA_TYPE value>
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inline void CValueTraits<DATA_TYPE, value>::Assignment(DATA_TYPE& rDstData, const DATA_TYPE& rSrcData)
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{
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rDstData = rSrcData;
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}
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/// Dynamic instantiation traits.
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template <typename DATA_TYPE>
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class CDynamicTraits
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{
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public:
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/// Calls the constructor of @a DATA_TYPE class by default.
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static void Constructor(DATA_TYPE& rData);
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/// Calls the destructor of @a DATA_TYPE class by default.
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static void Destructor(DATA_TYPE& rData);
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/// Calls the assignment operator of @a DATA_TYPE class by default.
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static void Assignment(DATA_TYPE& rDstData, const DATA_TYPE& rSrcData);
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};
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/**
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* @param rData - reference to the memory placement of new object.
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*/
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template <typename DATA_TYPE>
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inline void CDynamicTraits<DATA_TYPE>::Constructor(DATA_TYPE& rData)
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{
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rData = NULL;
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}
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/**
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* @param rData - reference to the memory placement of deleted object.
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*/
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template <typename DATA_TYPE>
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inline void CDynamicTraits<DATA_TYPE>::Destructor(DATA_TYPE& rData)
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{
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delete rData;
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}
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/**
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* @param rDstData - reference to the memory placement of destination object.
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* @param rSrcData - reference to the memory placement of source object.
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*/
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template <typename DATA_TYPE>
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inline void CDynamicTraits<DATA_TYPE>::Assignment(DATA_TYPE& rDstData, const DATA_TYPE& rSrcData)
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{
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delete rDstData;
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rDstData = rSrcData;
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}
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/// Data comparator traits.
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template <typename DATA_TYPE>
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class CCompareTraits
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{
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public:
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/// Determines whatever two elements are equal to each other.
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static bool Compare(const DATA_TYPE& rData1, const DATA_TYPE& rData2);
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/// Compares two elements according to their order.
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static int OrderedCompare(const DATA_TYPE& rData1, const DATA_TYPE& rData2);
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};
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/**
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* @param rData1 - reference to the first element.
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* @param rData2 - reference to the second element.
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* @return true if elements are equal.
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*/
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template <typename DATA_TYPE>
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inline bool CCompareTraits<DATA_TYPE>::Compare(const DATA_TYPE& rData1, const DATA_TYPE& rData2)
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{
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return (rData1 == rData2);
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}
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/**
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* @param rData1 - reference to the first element.
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* @param rData2 - reference to the second element.
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* @return comparison result:
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* - < 0 if first element is less than second element;
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* - = 0 if first element is equal to the second element;
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* - > 0 if first element is greater than second element.
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*/
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template <typename DATA_TYPE>
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int CCompareTraits<DATA_TYPE>::OrderedCompare(const DATA_TYPE& rData1, const DATA_TYPE& rData2)
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{
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if (rData1 < rData2)
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return -1;
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else if (rData2 < rData1)
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return +1;
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else
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return 0;
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}
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/// Explicit template specialization for strings.
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template <> class CCompareTraits<TCHAR*>
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{
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public:
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/// Determines whatever two elements are equal to each other.
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static bool Compare(TCHAR * const & rData1, TCHAR * const & rData2);
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/// Compares two elements according to their order.
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static int OrderedCompare(TCHAR * const & rData1, TCHAR * const & rData2);
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};
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/**
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* @param rData1 - reference to the first element.
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* @param rData2 - reference to the second element.
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* @return true if elements are equal.
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*/
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inline bool CCompareTraits<TCHAR*>::Compare(TCHAR * const & rData1, TCHAR * const & rData2)
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{
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return (_tcscmp(rData1, rData2) == 0);
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}
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/**
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* @param rData1 - reference to the first element.
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* @param rData2 - reference to the second element.
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* @return comparison result:
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* - < 0 if first element is less than second element;
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* - = 0 if first element is equal to the second element;
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* - > 0 if first element is greater than second element.
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*/
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inline int CCompareTraits<TCHAR*>::OrderedCompare(TCHAR * const & rData1, TCHAR * const & rData2)
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{
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return _tcscmp(rData1, rData2);
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}
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/// Explicit template specialization for strings.
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template <> class CCompareTraits<const TCHAR*>
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{
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public:
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/// Determines whatever two elements are equal to each other.
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static bool Compare(TCHAR const * const & rData1, TCHAR const * const & rData2);
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/// Compares two elements according to their order.
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static int OrderedCompare(TCHAR const * const & rData1, TCHAR const * const & rData2);
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};
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/**
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* @param rData1 - reference to the first element.
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* @param rData2 - reference to the second element.
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* @return true if elements are equal.
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*/
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inline bool CCompareTraits<const TCHAR*>::Compare(TCHAR const * const & rData1, TCHAR const * const & rData2)
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{
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return (_tcscmp(rData1, rData2) == 0);
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}
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/**
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* @param rData1 - reference to the first element.
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* @param rData2 - reference to the second element.
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* @return comparison result:
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* - < 0 if first element is less than second element;
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* - = 0 if first element is equal to the second element;
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* - > 0 if first element is greater than second element.
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*/
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inline int CCompareTraits<const TCHAR*>::OrderedCompare(TCHAR const * const & rData1, TCHAR const * const & rData2)
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{
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return _tcscmp(rData1, rData2);
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}
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/// Comparator traits used for incomparable objects.
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template <typename DATA_TYPE>
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class CIncomparableTraits
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{
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public:
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/// Determines whatever two elements are equal to each other.
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static bool Compare(const DATA_TYPE& rData1, const DATA_TYPE& rData2);
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/// Compares two elements according to their order.
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static int OrderedCompare(const DATA_TYPE& rData1, const DATA_TYPE& rData2);
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};
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/**
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* @param rData1 - reference to the first element.
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* @param rData2 - reference to the second element.
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* @return true if elements are equal.
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*/
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template <typename DATA_TYPE>
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inline bool CIncomparableTraits<DATA_TYPE>::Compare(const DATA_TYPE& /*rData1*/, const DATA_TYPE& /*rData2*/)
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{
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_ASSERT(FALSE);
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return false;
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}
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/**
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* @param rData1 - reference to the first element.
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* @param rData2 - reference to the second element.
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* @return comparison result:
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* - < 0 if first element is less than second element;
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* - = 0 if first element is equal to the second element;
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* - > 0 if first element is greater than second element.
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*/
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template <typename DATA_TYPE>
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int CIncomparableTraits<DATA_TYPE>::OrderedCompare(const DATA_TYPE& /*rData1*/, const DATA_TYPE& /*rData2*/)
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{
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_ASSERT(FALSE);
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return 0;
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}
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/// Hash key traits.
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template <typename KEY_TYPE>
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class CHashTraits
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{
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public:
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/// Computes the hash value for the given object instance.
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static unsigned HashKey(const KEY_TYPE& key);
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};
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/**
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* @param key - hash value must be generated for this object.
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* @return hash value of the given object.
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*/
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template <typename KEY_TYPE>
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inline unsigned CHashTraits<KEY_TYPE>::HashKey(const KEY_TYPE& key)
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{
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return ((unsigned)key >> 4);
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}
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/// Explicit template specialization for string hash tables.
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template <> class CHashTraits<CStrHolder>
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{
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public:
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/// Computes the hash value for the given object instance.
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static unsigned HashKey(const CStrHolder& strKey);
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};
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/**
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* @param strKey - hash value must be generated for this string.
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* @return hash value of the given object.
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*/
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inline unsigned CHashTraits<CStrHolder>::HashKey(const CStrHolder& strKey)
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{
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extern unsigned GetStringHashValue(const TCHAR* pszKey);
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return GetStringHashValue((PCTSTR)strKey);
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}
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/// Explicit template specialization for string hash tables.
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template <> class CHashTraits<CStrStream>
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{
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public:
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/// Computes the hash value for the given object instance.
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static unsigned HashKey(const CStrStream& strKey);
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};
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/**
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* @param strKey - hash value must be generated for this string.
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* @return hash value of the given object.
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*/
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inline unsigned CHashTraits<CStrStream>::HashKey(const CStrStream& strKey)
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{
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extern unsigned GetStringHashValue(const TCHAR* pszKey);
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return GetStringHashValue((PCTSTR)strKey);
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}
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/// Explicit template specialization for string hash tables.
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template <> class CHashTraits<TCHAR*>
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{
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public:
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/// Computes the hash value for the given object instance.
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static unsigned HashKey(TCHAR * const & pszKey);
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};
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/**
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* @param pszKey - hash value must be generated for this string.
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* @return hash value of the given object.
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*/
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inline unsigned CHashTraits<TCHAR*>::HashKey(TCHAR * const & pszKey)
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{
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extern unsigned GetStringHashValue(const TCHAR* pszKey);
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return GetStringHashValue(pszKey);
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}
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/// Explicit template specialization for string hash tables.
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template <> class CHashTraits<const TCHAR*>
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{
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public:
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/// Computes the hash value for the given object instance.
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static unsigned HashKey(TCHAR const * const & pszKey);
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};
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/**
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* @param pszKey - hash value must be generated for this string.
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* @return hash value of the given object.
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*/
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inline unsigned CHashTraits<const TCHAR*>::HashKey(TCHAR const * const & pszKey)
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{
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extern unsigned GetStringHashValue(const TCHAR* pszKey);
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return GetStringHashValue(pszKey);
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}
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