windows utf8 转 utf16

windows utf8 转 utf16

static int MdesUtf8ToUtf16 (  const char* src, wchar_t * dst )
{
#ifdef _MSC_VER
    int size = MultiByteToWideChar ( CP_UTF8, 0, src, -1, dst, 0 );
    return MultiByteToWideChar ( CP_UTF8, 0, src, -1, dst, size + 1 );
#else
    dst[0] = 0;
    return 0;
#endif
}

//the most max file path 512
static int my_open_utf8 (const char* device/*utf8 char*/, int flag)
{
#ifdef _MSC_VER
    wchar_t wFileName[512];
    MdesUtf8ToUtf16 ( device, wFileName );
    return _wopen ( wFileName, flag, 0 );
#endif
}