This class implements an ordered hash-like object. It's a cross between a Perl hash and a linked list. Use it whenever you want the speed and structure of a Perl hash, but the orderedness of a list. Don't use it if you want to be able to address your hash entries by number, like you can in a real list ($list[5]). See also Tie::IxHash by Gurusamy Sarathy. It's similar (it also does ordered hashes), but it has a different internal data structure and a different flavor of usage. IxHash stores its data internally as both a hash and an array in parallel. LLHash stores its data as a bidirectional linked list, making both inserts and deletes very fast. IxHash therefore makes your hash behave more like a list than LLHash does. This module keeps more of the hash flavor.
WWW: http://search.cpan.org/dist/Tie-LLHash/
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