@deftypefun {const gnutls_digest_algorithm_t *} {gnutls_digest_list} ( @var{void})
Get a list of hash (digest) algorithms supported by GnuTLS.
This function is not thread safe.
@strong{Returns:} Return a (0)-terminated list of @code{gnutls_digest_algorithm_t}
integers indicating the available digests.
@end deftypefun