#!/usr/bin/perl
                                                                                           
use warnings;
use strict;

use Symbol;
use IO::Handle;
                                                                                           
our $f1;
$f1 = gensym;
open($f1,"<&STDIN")
  or die "dup of STDIN failed\n";
tie *$f1, 'TieTest';
print "Read: ",scalar(<$f1>);
                                                                                           
package TieTest;
sub TIEHANDLE
{
  my $class = shift;
  my $obj = { };
  bless $obj, $class;
  warn "TIEHANDLE: $obj\n";
  $obj;
}
                                                                                          
sub READLINE
{
  warn "READLINE\n";
  return "line\n";
}                                                                                        

##</code><code>##

TIEHANDLE: TieTest=HASH(0x80fcacc)
Use of uninitialized value in <HANDLE> at tietest.pl line 14.
readline() on unopened filehandle at tietest.pl line 14.
Use of uninitialized value in print at tietest.pl line 14.
Read: