from http://blog.****.net/frankiewang008/article/details/12832239
- // 多字节编码转为UTF8编码
- bool MBToUTF8(vector<char>& pu8, const char* pmb, int32 mLen)
- {
- // convert an MBCS string to widechar
- int32 nLen = MultiByteToWideChar(CP_ACP, 0, pmb, mLen, NULL, 0);
- WCHAR* lpszW = NULL;
- try
- {
- lpszW = new WCHAR[nLen];
- }
- catch(bad_alloc &memExp)
- {
- return false;
- }
- int32 nRtn = MultiByteToWideChar(CP_ACP, 0, pmb, mLen, lpszW, nLen);
- if(nRtn != nLen)
- {
- delete[] lpszW;
- return false;
- }
- // convert an widechar string to utf8
- int32 utf8Len = WideCharToMultiByte(CP_UTF8, 0, lpszW, nLen, NULL, 0, NULL, NULL);
- if (utf8Len <= 0)
- {
- return false;
- }
- pu8.resize(utf8Len);
- nRtn = WideCharToMultiByte(CP_UTF8, 0, lpszW, nLen, &*pu8.begin(), utf8Len, NULL, NULL);
- delete[] lpszW;
- if (nRtn != utf8Len)
- {
- pu8.clear();
- return false;
- }
- return true;
- }
- // UTF8编码转为多字节编码
- bool UTF8ToMB(vector<char>& pmb, const char* pu8, int32 utf8Len)
- {
- // convert an UTF8 string to widechar
- int32 nLen = MultiByteToWideChar(CP_UTF8, 0, pu8, utf8Len, NULL, 0);
- WCHAR* lpszW = NULL;
- try
- {
- lpszW = new WCHAR[nLen];
- }
- catch(bad_alloc &memExp)
- {
- return false;
- }
- int32 nRtn = MultiByteToWideChar(CP_UTF8, 0, pu8, utf8Len, lpszW, nLen);
- if(nRtn != nLen)
- {
- delete[] lpszW;
- return false;
- }
- // convert an widechar string to Multibyte
- int32 MBLen = WideCharToMultiByte(CP_ACP, 0, lpszW, nLen, NULL, 0, NULL, NULL);
- if (MBLen <=0)
- {
- return false;
- }
- pmb.resize(MBLen);
- nRtn = WideCharToMultiByte(CP_ACP, 0, lpszW, nLen, &*pmb.begin(), MBLen, NULL, NULL);
- delete[] lpszW;
- if(nRtn != MBLen)
- {
- pmb.clear();
- return false;
- }
- return true;
- }
- // 多字节编码转为Unicode编码
- bool MBToUnicode(vector<wchar_t>& pun, const char* pmb, int32 mLen)
- {
- // convert an MBCS string to widechar
- int32 uLen = MultiByteToWideChar(CP_ACP, 0, pmb, mLen, NULL, 0);
- if (uLen<=0)
- {
- return false;
- }
- pun.resize(uLen);
- int32 nRtn = MultiByteToWideChar(CP_ACP, 0, pmb, mLen, &*pun.begin(), uLen);
- if (nRtn != uLen)
- {
- pun.clear();
- return false;
- }
- return true;
- }
- //Unicode编码转为多字节编码
- bool UnicodeToMB(vector<char>& pmb, const wchar_t* pun, int32 uLen)
- {
- // convert an widechar string to Multibyte
- int32 MBLen = WideCharToMultiByte(CP_ACP, 0, pun, uLen, NULL, 0, NULL, NULL);
- if (MBLen <=0)
- {
- return false;
- }
- pmb.resize(MBLen);
- int nRtn = WideCharToMultiByte(CP_ACP, 0, pun, uLen, &*pmb.begin(), MBLen, NULL, NULL);
- if(nRtn != MBLen)
- {
- pmb.clear();
- return false;
- }
- return true;
- }
- // UTF8编码转为Unicode
- bool UTF8ToUnicode(vector<wchar_t>& pun, const char* pu8, int32 utf8Len)
- {
- // convert an UTF8 string to widechar
- int32 nLen = MultiByteToWideChar(CP_UTF8, 0, pu8, utf8Len, NULL, 0);
- if (nLen <=0)
- {
- return false;
- }
- pun.resize(nLen);
- int32 nRtn = MultiByteToWideChar(CP_UTF8, 0, pu8, utf8Len, &*pun.begin(), nLen);
- if(nRtn != nLen)
- {
- pun.clear();
- return false;
- }
- return true;
- }
- // Unicode编码转为UTF8
- bool UnicodeToUTF8(vector<char>& pu8, const wchar_t* pun, int32 uLen)
- {
- // convert an widechar string to utf8
- int32 utf8Len = WideCharToMultiByte(CP_UTF8, 0, pun, uLen, NULL, 0, NULL, NULL);
- if (utf8Len<=0)
- {
- return false;
- }
- pu8.resize(utf8Len);
- int32 nRtn = WideCharToMultiByte(CP_UTF8, 0, pun, uLen, &*pu8.begin(), utf8Len, NULL, NULL);
- if (nRtn != utf8Len)
- {
- pu8.clear();
- return false;
- }
- return true;
- }