


Tie::RefHash(3p) Perl Programmers Reference GuideTie::RefHash(3p)


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)














30/Nov/1997            perl 5.005, patch 03                     1


