Algorithm::ChooseSubsets
Brian Duggan <bduggan@matatu.org>
This module is for iterating through the subsets of a list.
Thanks to Alexa Sorant for finding the off-by-one typo.
Copyright (c) 2002 Brian Duggan. All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.