UTF-8 <==> unicode(WCHAR)

 static int fetchWordFromUTF8(const chConstStringA& strText, WCHAR& result)
 {
     int nLength = strText.length();
     if(nLength <= ) return ;

     LPCSTR lpszTextA = strText.c_ptr();
     BYTE byte = *lpszTextA;
     if ((byte >> ) == 0x00)
     {
         result = (WCHAR)(BYTE)*lpszTextA;
         return ;
     }
     else if ((byte >> ) == 0x06)
     {
         if(nLength >= )
         {
             DWORD dw0 = (DWORD)(BYTE)lpszTextA[];
             DWORD dw1 = (DWORD)(BYTE)lpszTextA[];
             result = (WCHAR)((dw1&0x3F) | ((dw0&0x1F) << ));
             return ;
         }
     }
     else if ((byte >> ) == 0x0E)
     {
         if(nLength >= )
         {
             DWORD dw0 = (DWORD)(BYTE)lpszTextA[];
             DWORD dw1 = (DWORD)(BYTE)lpszTextA[];
             DWORD dw2 = (DWORD)(BYTE)lpszTextA[];
             result = (WCHAR)((dw2&0x3F) | ((dw1&0x3F) << ) | ((dw0&0x0F)<<));
             return ;
         }
     }
     result = '?';
     return ;
 }

 static int fetchUTF8FromWord(const UINT& word, LPSTR szResult)
 {
     if (word < 0x0080)
     {
         szResult[] = (ACHAR)word;
         return ;
     }
     else if (word < 0x0800)
     {
         szResult[] = (ACHAR)(0xC0 | (BYTE)(word>>));
         szResult[] = (ACHAR)(0x80 | (BYTE)(word&0x003F));
         return ;
     }
     else// if (word <= 0xFFFF)
     {
         szResult[] = (ACHAR)(0xE0 | (BYTE)(word>>));
         szResult[] = (ACHAR)(0x80 | (BYTE)((word>>) & 0x3F));
         szResult[] = (ACHAR)(0x80 | (BYTE)(word&0x3F));
         return ;
     }
     szResult[] = '?';
     return ;
 }