Agena

2.15.4, July 06, 2019 - The new functions `llist.toseq` & `ulist.toseq` convert an llist and a ulist to a sequence. - The new functions `llist.dump` & `ulist.dump` move one element after the other from a list to a sequence, leaving the list empty thereafter and ready for garbage collection. May be used in case of insufficient memory. - The new function `llist.checkllist` checks whether its argument is a linked list. - `ulist.iterate` has become 75 % faster. - The '__size' metamethod for llists has become 40 % faster. - `llist.iterate` can now also process ulists. - In `llist.purge`, the index is now optional. If not given, the last (top) node will be deleted. The function now also returns the value purged. - Created metamethods for the `empty` and `filled` operators (new metamethods '__empty' and '__filled', respectively) that work with userdata only. These two operators now support llists, ulists, and numarrays. - `llist.totable` did not work. This has been fixed. The function has also become seven times faster by porting it to C. - The new function `stack.attribd` returns various status information on the internal stacks. - Added three new hash functions: `hashes.pjw` computes the P. J. Weinberger Hash, `hashes.rs` another string hash, and `hashes.bp` may be useful to classify words with the same endings. - `stack.shrinkd` did not reset a stack to its default size when empty. This has been fixed. - The `__imag` metamethod did not work. This has been fixed. - Documented the `dual` package which processes dual numbers.