Tie::RefHash - use references as hash keys

- NAME
- SYNOPSIS
- DESCRIPTION
- EXAMPLE
- AUTHOR
- VERSION
- SEE ALSO

# 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)`