WHAT IS A FAT-TREE?

It's a cross between a tree and an array!  Each tree node contains a
fixed length array of elements.  An F-Tree can be used as either type
of data structure!  Tree performance is enhanced by balancing array
operations with tree operations.  Tree operations are better optimized
by taking arrays into account.  All array operations become O(log n)
time.


Name           DSLI  Description                                  Info
-----------    ----  -------------------------------------------- -----
Tree::Fat      bdcO  Embeddable F-Tree Algorithm Suite            JPRIT

Implements object-oriented trees using algorithms adapted from b-trees
and AVL trees (without resorting to yucky C++).


The reasons for another tree implementation are as follows:

- Publically available code is the best tested.  Buggy trees are
completely unacceptable.  This module has been put through test
coverage analysis and stress testing.

- The algorithms have been completely separated from any notion of a
database.  The code is tweaked for easy embedding into other
applications.  A very flexible set of hooks are available while still
preserving the functional abstraction.


Get it via http://www.perl.com/CPAN/authors/id/JPRIT/ !


** 01-23-98 RELEASE 0.07

- Factored out code that isn't sensitive to key/data layout.
Unfortunately, this change necessitated tweaking the memory layout.

- tc_insert has much better overall performance.  tc_seek now does a
full binary search.  tc_delete is re-implemented with rotations.
Asymptotic performance is now respectable.

- tv_compress, tv_balance added.

- memmove & memcpy of slots used throughout (instead of assignment).
Added more hooks for C++.  Fixed cpp (re)directives.


** 01-01-98 RELEASE 0.03

- First public release.


Copyright © 1997-1998 Joshua Nathaniel Pritikin.  All rights reserved.

This package is free software and is provided "as is" without express
or implied warranty.  It may be used, redistributed and/or modified
under the terms of the Perl Artistic License (see
http://www.perl.com/perl/misc/Artistic.html)
