UTF-8与本地字符转换

CodingConv.h

/** * \file CodingConv.h * \brief 编码格式转换接口定义文件 */#pragma once/** * \class CCodingConv CodingConv.h * \brief 本地编码类型与UTF8编码类型转换封装类，用于sqlite中的编码类型转换 * \date 2010-6-8 9:31 */class CCodingConv  {public:    /**     * \brief 将本地编码类型转换为UTF8编码类型     * \param[in] strIn 本地编码类型的字符串     * \param[out] strOutUTF8MB 转换后的UTF8编码格式的字符串     * \return 转换后的字符串长度     * \attention 本地函数为strOutUTF8MB申请的内存要在外部释放     */    static size_t ConvertStringToUTF8( LPCTSTR strIn, char *& strOutUTF8MB );    /**     * \brief 将UTF8编码类型转换为本地编码类型     * \param[in] strInUTF8MB UTF8编码类型的字符串     * \param[in] len strInUTF8MB字符串的长度     * \param[out] strOut 转换后的本地编码格式的字符串     * \return NONE     */    static void ConvertUTF8ToString( char * strInUTF8MB, size_t len, LPTSTR & strOut );};

CodingConv.cpp

/** * \file CodingConv.cpp * \brief 编码格式转换接口实现文件 */#include "stdafx.h"#include <Windows.h>#include <tchar.h>#include "CodingConv.h"void CCodingConv::ConvertUTF8ToString( char * strInUTF8MB, size_t len, LPTSTR & strOut ){    strOut=new TCHAR[len];    strOut[0]=0;#ifdef UNICODE    MultiByteToWideChar(CP_UTF8, 0, strInUTF8MB, (int)len, strOut, (int)len);#else    WCHAR * wChar=new WCHAR[len];    wChar[0]=0;    MultiByteToWideChar(CP_UTF8, 0, strInUTF8MB, (int)len, wChar, (int)len);    WideCharToMultiByte(CP_ACP, 0, wChar, (int)len, strOut, (int)len, 0, 0);    delete [] wChar;#endif}size_t CCodingConv::ConvertStringToUTF8( LPCTSTR strIn, char *& strOutUTF8MB ){    size_t len=_tcslen(strIn);#ifdef UNICODE    int iRequiredSize=WideCharToMultiByte(CP_UTF8, 0, strIn, -1, 0, 0, 0, 0);    strOutUTF8MB=new char[iRequiredSize];    strOutUTF8MB[0]=0;    WideCharToMultiByte(CP_UTF8, 0, strIn, -1, strOutUTF8MB, iRequiredSize, 0, 0);#else    WCHAR * wChar=new WCHAR[len+1];    wChar[0]=0;    MultiByteToWideChar(CP_ACP, 0, strIn, (int)len+1, wChar, (int)len+1);    int iRequiredSize=WideCharToMultiByte(CP_UTF8, 0, wChar, (int)len+1, 0, 0, 0, 0);    strOutUTF8MB=new char[iRequiredSize];    strOutUTF8MB[0]=0;    WideCharToMultiByte(CP_UTF8, 0, wChar, (int)len+1, strOutUTF8MB, iRequiredSize, 0, 0);    delete [] wChar;#endif    return iRequiredSize;}