Check if the given Vorbis comment entry's field name matches the given
field name.
\param entry An existing Vorbis comment entry.
\param field_name The field name to check.
\param field_name_length The length of \a field_name, not including the
terminating \c NUL.
\assert
\code (entry.entry != NULL && entry.length > 0) \endcode
\retval FLAC__bool
\c true if the field names match, else \c false
Check if the given Vorbis comment entry's field name matches the given field name.
\param entry An existing Vorbis comment entry. \param field_name The field name to check. \param field_name_length The length of \a field_name, not including the terminating \c NUL. \assert \code (entry.entry != NULL && entry.length > 0) \endcode \retval FLAC__bool \c true if the field names match, else \c false