// wstring -> string
string global::wstr2str(const wstring& wstr)
{
// Windows Version
#ifdef __WXMSW__
const int slength = (int)wstr.length() + 1;
const int len = ::WideCharToMultiByte(CP_ACP, 0, wstr.c_str(), slength, 0, 0, NULL, FALSE);
char* buf = new char[len];
::WideCharToMultiByte(CP_ACP, 0, wstr.c_str(), slength, buf, len, NULL, FALSE);
std::string r(buf);
delete[] buf;
return r;
#else
mbstate_t st = {};
const unsigned wlen = wstr.length();
wchar_t wbuf[wlen + 1];
const size_t copied = wstr.copy(wbuf, wlen);
wbuf[copied] = L'\0';
const wchar_t* wptr = wbuf;
char buf[wlen * sizeof(std::wstring::value_type) + 1];
const ssize_t res = std::wcsrtombs(buf, &wptr, sizeof(buf), &st);
return (res >= 0) ? buf : "?";
#endif
}
