@subheading tld_get_4
@anchor{tld_get_4}
@deftypefun {int} {tld_get_4} (const uint32_t * @var{in}, size_t @var{inlen}, char ** @var{out})
@var{in}: Array of unicode code points to process. Does not need to be
zero terminated.
@var{inlen}: Number of unicode code points.
@var{out}: Zero terminated ascii result string pointer.
Isolate the top-level domain of @code{in} and return it as an ASCII
string in @code{out}.
@strong{Return value:} Return @code{TLD_SUCCESS} on success, or the corresponding
@code{Tld_rc} error code otherwise.
@end deftypefun