Set::Relation::V2 - Bundled second implementation of Set::Relation role
This document describes Set::Relation::V2 version 0.13.1 for Perl 5.
See the SYNOPSIS of Set::Relation, which represents this file also.
Set::Relation::V2 provides the second complete implementation of the Set::Relation role, following Set::Relation::V1, and it does not implement the Set::Relation::Mutable role. This newer version is the one you should be using in practice, rather than the older one, since it should have better performance.
There are 2 main differences that Set::Relation::V2 has from Set::Relation::V1. The first is that V2 provides immutable objects while V1 provides mutable objects. The second is that V2 is lazy and will defer any tests for duplicate tuples as late as possible, while V1 is eager and will test for duplicate tuples as early as possible; V2 will also respect true $allow_dup_tuples arguments, while V1 will ignore them. Besides those 2 matters and their associated large differences in performance profiles, V2 is essentially the same as V1, including that relation tuples are internally represented by Perl Hashes.
$allow_dup_tuples
Set::Relation::V2 composes the Set::Relation role declared in the Set::Relation file.
This documentation is pending.
This file requires any version of Perl 5.x.y that is at least 5.8.1.
It also requires these Perl 5 packages that are available both bundled with Perl 5.8.1+ and on CPAN: Carp-ver(1.01..*), Scalar::Util-ver(1.13..*).
It also requires these Perl 5 packages that are available both bundled with Perl 5.25.1+ and on CPAN: List::Util-ver(1.45..*).
None reported.
Go to Set::Relation for the majority of both distribution-internal and external references.
Darren Duncan (darren@DarrenDuncan.net)
darren@DarrenDuncan.net
Set::Relation is Copyright © 2006-2016, Muldis Data Systems, Inc.
See the LICENSE AND COPYRIGHT of Set::Relation for details.
The ACKNOWLEDGEMENTS in Set::Relation apply to this file too.
To install Set::Relation, copy and paste the appropriate command in to your terminal.
cpanm
cpanm Set::Relation
CPAN shell
perl -MCPAN -e shell install Set::Relation
For more information on module installation, please visit the detailed CPAN module installation guide.