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If you don't know what "tie" means, you should look at the perltie(1) manpage in a recent perl distribution, or in the index of one of the numerous books on perl.
This is the README file for Tie::IxHash, the Perl module that implements ordered in-memory associative arrays. It requires: Perl Version 5.003 or later. If you have been led to believe that associative arrays in perl don't preserve order, and if you have ever craved for that feature, this module is for you. Simply declare a "tie" for the hash variable that you want to be order-pres more»
Tie::IxHash(3) User Contributed Perl Documentation Tie::IxHash(3) NAME Tie::IxHash - ordered associative arrays for Perl SYNOPSIS # simple usage use Tie::IxHash; tie HASHVARIABLE, Tie::IxHash [, LIST]; # OO interface with more powerful features use Tie::IxHash; TIEOBJECT = Tie::IxHash->new( [LIST] ); TIEOBJ more»
=head1 NAME HISTORY - release history for Tie::IxHash =head1 DESCRIPTION =over 8 =item 1.22 (27 February 2010) Build.PL added Better META.yml Distribution upgrade =item 1.21 (5 January 1998) Key()/Values()/Indices() now return a single value when called with single argument (makes them useful in scalar contexts) =item 1.2 (18 February 1997) Repackaged into a t more»