// zero for types octet, char, and wchar
returnValue.insert_octet((byte)0);
break;
case TCKind._tk_char:
// zero for types octet, char, and wchar
returnValue.insert_char((char)0);
break;
case TCKind._tk_wchar:
// zero for types octet, char, and wchar
returnValue.insert_wchar((char)0);
break;