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)