OK, but I'll have to take your word regarding Devel::Peek and it's output. I have no idea what it means (for now).

What I do know is this:

#!/usr/local/bin/perl -w

use strict;
use Data::Dumper;

sub f { my $x; print Dumper($x); $x="abc"; }

f;

f;

[download]

And the output is:

$VAR1 = undef;
$VAR1 = undef;

[download]

Whether the storage space is deallocated or not seems to be irrelevant with respect to general use. I can't get back to the original variable the second time around. Or at least, that's what it looks like. Perhaps some additional discussion about what you mean would help my feeble understanding.

In reply to Re^2: scope of an autovivified variable? by rmcgowan
in thread scope of an autovivified variable? by rmcgowan

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.