@deftypefun {int} {gnutls_x509_tlsfeatures_get} (gnutls_x509_tlsfeatures_t @var{f}, unsigned @var{idx}, unsigned int * @var{feature})
@var{f}: The TLS features
@var{idx}: The index of the feature to get
@var{feature}: If the function succeeds, the feature will be stored in this variable
This function will get a feature from the X.509 TLS features
extension structure.
@strong{Returns:} On success, @code{GNUTLS_E_SUCCESS} (0) is returned,
otherwise a negative error value.
@strong{Since:} 3.5.1
@end deftypefun