寬字元(unicode)和多位元組的轉換(std::string與std::wstring轉換)
阿新 • • 發佈:2019-01-04
#include <string> #include <windows.h> using namespace std; //Converting a WChar string to a Ansi string std::string WChar2Ansi(LPCWSTR pwszSrc) { int nLen = WideCharToMultiByte(CP_ACP, 0, pwszSrc, -1, NULL, 0, NULL, NULL); if (nLen<= 0) return std::string(""); char* pszDst = new char[nLen]; if (NULL == pszDst) return std::string(""); WideCharToMultiByte(CP_ACP, 0, pwszSrc, -1, pszDst, nLen, NULL, NULL); pszDst[nLen -1] = 0; std::string strTemp(pszDst); delete [] pszDst; return strTemp; } string ws2s(wstring& inputws){ return WChar2Ansi(inputws.c_str()); } //Converting a Ansi string to WChar string std::wstring Ansi2WChar(LPCSTR pszSrc, int nLen) { int nSize = MultiByteToWideChar(CP_ACP, 0, (LPCSTR)pszSrc, nLen, 0, 0); if(nSize <= 0) return NULL; WCHAR *pwszDst = new WCHAR[nSize+1]; if( NULL == pwszDst) return NULL; MultiByteToWideChar(CP_ACP, 0,(LPCSTR)pszSrc, nLen, pwszDst, nSize); pwszDst[nSize] = 0; if( pwszDst[0] == 0xFEFF) // skip Oxfeff for(int i = 0; i < nSize; i ++) pwszDst[i] = pwszDst[i+1]; wstring wcharString(pwszDst); delete pwszDst; return wcharString; } std::wstring s2ws(const string& s){ return Ansi2WChar(s.c_str(),s.size());}