This place needs you.

So true.

What happens here? Does this mean that each scratchpad is persistent at its recursion level?

use strict;
sub foo;
sub foo {
    return unless $_ [0];
    my $x if undef;
    print ++ $x, " ";
    foo $_ [0] - 1;
}
foo 1; print "\n";
foo 2; print "\n";
foo 3; print "\n";
foo 7; print "\n";
foo 11; print "\n";
foo 9; print "\n";
foo 15; print "\n";
__END__
1 
2 1 
3 2 1 
4 3 2 1 1 1 1 
5 4 3 2 2 2 2 1 1 1 1 
6 5 4 3 3 3 3 2 2 
7 6 5 4 4 4 4 3 3 2 2 1 1 1 1

[download]
perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'

In reply to Re^3: Unusual Closure Behaviour by shmem
in thread Unusual Closure Behaviour by tachyon

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