Tie::RefHash(3)						       Tie::RefHash(3)

NAME    [Toc]    [Back]

     Tie::RefHash - use	references as hash keys

SYNOPSIS    [Toc]    [Back]

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

	 untie HASHVARIABLE;

DESCRIPTION    [Toc]    [Back]

     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    [Toc]    [Back]

	 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    [Toc]    [Back]

     Gurusamy Sarathy	     [email protected]

VERSION    [Toc]    [Back]

     Version 1.2    15 Dec 1996

SEE ALSO    [Toc]    [Back]

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


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