MAN page from RedHat Other perl-5.004-0.1.i386.rpm

Tie::RefHash

Section: Perl Programmers Reference Guide (3)
Updated: perl 5.004, patch 04
Index

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 ifyou first tie the hash variable to this module.

It is implemented using the standard perl TIEHASH interface. Pleasesee 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 gsarAATTumich.edu

VERSION

Version 1.2 15 Dec 1996

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