If the warnings you get are not clear enough for you,

use diagnostics; 

#!/usr/bin/perl -w
use diagnostics;
use strict;
sub outermost { my $a; sub middle { sub { $a } } }

[download]
Use strict warnings and diagnostics or die

____________________________________________________
** The Third rule of perl club is a statement of fact: pod is sexy.

In reply to Re: "Variable will not stay shared" warning by PodMaster
in thread "Variable will not stay shared" warning by George_Sherston

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