++AnomalousMonk: that helped (me, anyway; don't know about the OP). That was my first guess, but my initial experiments with the OP code didn't mesh. But I later saw that the print went to OUT, and forgot to redo a test to STDOUT. Thus I started thinking that it was a sub named END in a bout of horrible style. But I think you're right, it's an END block.

However, with this simplified code, I still only see the FIRST instance of the END block doing anything:

use strict;
use warnings;

$, = ",";
$\ = "\n";
$" = ";";

my %r = ( 0 => 0, 1 => 0, 2 => 0, 3 => 0 );

foreach (1..10) {
    my $x = $_ % 4;
    ++$r{$x};
    sub END { print __LINE__, "sub END block", $x, $r{$x} };
}

foreach(1 .. 10) { my $x = $_ % 4; print "$_ => $x => $r{$x}"};
print __LINE__, "END OF SCRIPT";
__END__
__OUTPUT__
1 => 1 => 3
2 => 2 => 3
3 => 3 => 2
4 => 0 => 2
5 => 1 => 3
6 => 2 => 3
7 => 3 => 2
8 => 0 => 2
9 => 1 => 3
10 => 2 => 3
17,END OF SCRIPT
13,sub END block,1,3

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In reply to Re^2: Code clarification - use of map and $$_ by pryrt
in thread Code clarification - use of map and $$_ by Anonymous Monk

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