third-party libs
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Benjamin Palko
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third-party/BugTrap-1.3-57bd515/source/StrHolder.h
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third-party/BugTrap-1.3-57bd515/source/StrHolder.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: Dynamic string holder.
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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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class CStrStream;
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/// Dynamic string holder.
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class CStrHolder
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{
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public:
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/// Initialize the object.
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CStrHolder(void);
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/// Destroy the object.
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~CStrHolder(void);
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/// Makes a copy of string data.
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CStrHolder(PCSTR pszStrData);
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/// Makes a copy of string data.
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CStrHolder(PCWSTR pszStrData);
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/// Makes a copy of string data.
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CStrHolder(const CStrHolder& rStrHolder);
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/// Makes a copy of string data.
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CStrHolder(const CStrStream& rStrStream);
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/// Makes a copy of string data.
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CStrHolder& operator=(PCSTR pszStrData);
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/// Makes a copy of string data.
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CStrHolder& operator=(PCWSTR pszStrData);
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/// Makes a copy of string data.
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CStrHolder& operator=(const CStrHolder& rStrHolder);
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/// Makes a copy of string data.
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CStrHolder& operator=(const CStrStream& rStrStream);
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/// Get string data.
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operator PCTSTR(void) const;
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/// Free string data.
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void Free(void);
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/// Get string length.
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size_t GetLength(void) const;
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/// Return true if string is empty.
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BOOL IsEmpty(void) const;
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/// Get string character.
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TCHAR GetAt(size_t nPosition) const;
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/// Get string character.
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TCHAR operator[](size_t nPosition) const;
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/// Object comparison.
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friend bool operator==(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2);
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/// Object comparison.
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friend bool operator!=(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2);
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/// Object comparison.
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friend bool operator<(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2);
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/// Object comparison.
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friend bool operator<=(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2);
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/// Object comparison.
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friend bool operator>(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2);
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/// Object comparison.
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friend bool operator>=(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2);
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private:
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/// Release string data.
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void Release(void);
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/// Initialize sting data.
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void InitData(PCSTR pszStrData);
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/// Initialize sting data.
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void InitData(PCWSTR pszStrData);
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/// Initialize sting data.
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void InitData(const CStrHolder& rStrHolder);
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/// Initialize sting data.
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void InitData(const CStrStream& rStrStream);
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/// Copy string into existing holder.
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void CopyData(PCSTR pszStrData);
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/// Copy string into existing holder.
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void CopyData(PCWSTR pszStrData);
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/// Copy string into existing holder.
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void CopyData(const CStrHolder& rStrHolder);
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/// Copy string into existing holder.
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void CopyData(const CStrStream& rStrStream);
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/// Shared string data.
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struct CStringData
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{
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/// Usage counter.
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size_t m_nUsageCount;
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/// String length.
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size_t m_nLength;
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#pragma warning(push)
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#pragma warning(disable : 4200) // nonstandard extension used : zero-sized array in struct/union
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/// Pointer to the string.
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TCHAR m_szData[0];
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#pragma warning(pop)
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};
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/// Pointer to string data.
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CStringData* m_pData;
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/// Empty string data.
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static CStringData m_sdEmptyData;
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};
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inline CStrHolder::CStrHolder(void)
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{
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m_pData = &m_sdEmptyData;
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}
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inline CStrHolder::~CStrHolder(void)
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{
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Release();
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}
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/**
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* @return string data.
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*/
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inline CStrHolder::operator PCTSTR(void) const
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{
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_ASSERTE(m_pData != NULL);
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return m_pData->m_szData;
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}
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/**
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* @return string length.
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*/
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inline size_t CStrHolder::GetLength(void) const
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{
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_ASSERTE(m_pData != NULL);
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return m_pData->m_nLength;
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}
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/**
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* @return true if string is empty.
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*/
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inline BOOL CStrHolder::IsEmpty(void) const
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{
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_ASSERTE(m_pData != NULL);
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return (m_pData->m_nLength == 0);
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}
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/**
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* @param pszStrData - another string data.
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*/
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inline CStrHolder::CStrHolder(PCSTR pszStrData)
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{
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InitData(pszStrData);
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}
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/**
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* @param pszStrData - another string data.
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*/
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inline CStrHolder::CStrHolder(PCWSTR pszStrData)
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{
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InitData(pszStrData);
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}
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/**
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* @param rStrHolder - another string data.
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*/
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inline CStrHolder::CStrHolder(const CStrHolder& rStrHolder)
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{
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InitData(rStrHolder);
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}
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/**
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* @param rStrStream - another string data.
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*/
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inline CStrHolder::CStrHolder(const CStrStream& rStrStream)
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{
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InitData(rStrStream);
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}
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/**
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* @param pszStrData - another string data.
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* @return reference to itself.
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*/
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inline CStrHolder& CStrHolder::operator=(PCSTR pszStrData)
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{
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CopyData(pszStrData);
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return *this;
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}
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/**
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* @param pszStrData - another string data.
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* @return reference to itself.
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*/
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inline CStrHolder& CStrHolder::operator=(PCWSTR pszStrData)
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{
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CopyData(pszStrData);
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return *this;
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}
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/**
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* @param rStrHolder - another string data.
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* @return reference to itself.
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*/
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inline CStrHolder& CStrHolder::operator=(const CStrHolder& rStrHolder)
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{
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if (this != &rStrHolder)
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CopyData(rStrHolder);
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return *this;
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}
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/**
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* @param rStrStream - another string data.
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* @return reference to itself.
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*/
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inline CStrHolder& CStrHolder::operator=(const CStrStream& rStrStream)
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{
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CopyData(rStrStream);
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return *this;
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}
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inline void CStrHolder::Free(void)
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{
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Release();
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m_pData = &m_sdEmptyData;
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}
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/**
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* @param pszStrData - another string data.
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*/
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inline void CStrHolder::CopyData(PCSTR pszStrData)
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{
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Release();
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InitData(pszStrData);
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}
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/**
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* @param pszStrData - another string data.
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*/
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inline void CStrHolder::CopyData(PCWSTR pszStrData)
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{
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Release();
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InitData(pszStrData);
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}
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/**
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* @param rStrStream - another string object.
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*/
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inline void CStrHolder::CopyData(const CStrStream& rStrStream)
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{
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Release();
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InitData(rStrStream);
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}
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/**
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* @param nPosition - character position within the string.
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* @return character value.
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*/
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inline TCHAR CStrHolder::GetAt(size_t nPosition) const
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{
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_ASSERTE(nPosition < m_pData->m_nLength);
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if (nPosition >= m_pData->m_nLength)
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RaiseException(STATUS_ARRAY_BOUNDS_EXCEEDED, 0, 0, NULL);
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return m_pData->m_szData[nPosition];
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}
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/**
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* @param nPosition - character position within the string.
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* @return character value.
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*/
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inline TCHAR CStrHolder::operator[](size_t nPosition) const
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{
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_ASSERTE(nPosition < m_pData->m_nLength);
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if (nPosition >= m_pData->m_nLength)
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RaiseException(STATUS_ARRAY_BOUNDS_EXCEEDED, 0, 0, NULL);
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return m_pData->m_szData[nPosition];
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}
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/**
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* @param rStrHolder1 - 1st object.
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* @param rStrHolder2 - 2nd object.
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* @return comparison result.
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*/
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inline bool operator==(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2)
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{
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return (_tcscmp(rStrHolder1.m_pData->m_szData, rStrHolder2.m_pData->m_szData) == 0);
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}
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/**
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* @param rStrHolder1 - 1st object.
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* @param rStrHolder2 - 2nd object.
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* @return comparison result.
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*/
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inline bool operator!=(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2)
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{
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return (_tcscmp(rStrHolder1.m_pData->m_szData, rStrHolder2.m_pData->m_szData) != 0);
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}
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/**
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* @param rStrHolder1 - 1st object.
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* @param rStrHolder2 - 2nd object.
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* @return comparison result.
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*/
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inline bool operator<(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2)
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{
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return (_tcscmp(rStrHolder1.m_pData->m_szData, rStrHolder2.m_pData->m_szData) < 0);
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}
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/**
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* @param rStrHolder1 - 1st object.
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* @param rStrHolder2 - 2nd object.
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* @return comparison result.
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*/
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inline bool operator<=(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2)
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{
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return (_tcscmp(rStrHolder1.m_pData->m_szData, rStrHolder2.m_pData->m_szData) <= 0);
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}
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/**
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* @param rStrHolder1 - 1st object.
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* @param rStrHolder2 - 2nd object.
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* @return comparison result.
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*/
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inline bool operator>(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2)
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{
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return (_tcscmp(rStrHolder1.m_pData->m_szData, rStrHolder2.m_pData->m_szData) > 0);
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}
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/**
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* @param rStrHolder1 - 1st object.
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* @param rStrHolder2 - 2nd object.
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* @return comparison result.
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*/
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inline bool operator>=(const CStrHolder& rStrHolder1, const CStrHolder& rStrHolder2)
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{
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return (_tcscmp(rStrHolder1.m_pData->m_szData, rStrHolder2.m_pData->m_szData) >= 0);
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}
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