Graham Barr > perl5.005_03 > Tie::RefHash

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Source   Latest Release: perl-5.8.8

NAME ^

Tie::RefHash - use references as hash keys

SYNOPSIS ^

    require 5.004;
    use Tie::RefHash;
    tie HASHVARIABLE, 'Tie::RefHash', LIST;

    untie HASHVARIABLE;

DESCRIPTION ^

This module provides the ability to use references as hash keys if you first tie the hash variable to this module.

It is implemented using the standard perl TIEHASH interface. Please see the tie entry in perlfunc(1) and perltie(1) for more information.

EXAMPLE ^

    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";
    }

AUTHOR ^

Gurusamy Sarathy gsar@umich.edu

VERSION ^

Version 1.2 15 Dec 1996

SEE ALSO ^

perl(1), perlfunc(1), perltie(1)

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