Err, the warning is due to defining a function (that ends up acting as a closure, due to its use of lexicals defined in an upper scope) inside a function. But if you write: 
{
  my $x;
  sub count { ++$x }
}

[download]
Then $x is private to &count, and because &count refers to a lexical that "should" have "gone away", it is a closure. At least, that is what I have understood from Randal.

japhy -- Perl and Regex Hacker

In reply to Re: Re: A Real Closure by japhy
in thread Unusual Closure Behaviour by tachyon

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