Tie::RefHash - use references as hash keys
require 5.004; use Tie::RefHash; tie HASHVARIABLE, 'Tie::RefHash', LIST; untie HASHVARIABLE;
This module provides the ability to use references as hash keys if you first tie the hash variable to this module.
tie
It is implemented using the standard perl TIEHASH interface. Please see the tie entry in perlfunc(1) and perltie(1) for more information.
use Tie::RefHash; tie %h, 'Tie::RefHash'; $a = []; $b = {}; $c = \*main; $d = \"gunk"; $e = sub { 'foo' }; %h = ($a => 1, $b => 2, $c => 3, $d => 4, $e => 5); $a->[0] = 'foo'; $b->{foo} = 'bar'; for (keys %h) { print ref($_), "\n"; }
Gurusamy Sarathy gsar@umich.edu
Version 1.2 15 Dec 1996
perl(1), perlfunc(1), perltie(1)
To install lib, copy and paste the appropriate command in to your terminal.
cpanm
cpanm lib
CPAN shell
perl -MCPAN -e shell install lib
For more information on module installation, please visit the detailed CPAN module installation guide.