Function notmuch_sys::notmuch_database_get_all_tags

pub unsafe extern fn notmuch_database_get_all_tags(db: *mut notmuch_database_t)
                                                   -> *mut notmuch_tags_t

Return a list of all tags found in the database.

This function creates a list of all tags found in the database. The resulting list contains all tags from all messages found in the database.

On error this function returns NULL.