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#!/usr/bin/perl

# Copyright 2002-2016, Paul Johnson (paul@pjcj.net)

# This software is free.  It is licensed under the same terms as Perl itself.

# The latest version of this software should be available from my homepage:
# http://www.pjcj.net

use strict;
use warnings;

my @x;

sub xx {
  $x[shift]++;
}

for (0 .. 10) {
  time &&
    $x[1]++;

  $x[2]++
    if time;

  for (0 .. 2) {
      $x[3]++;
  }

  if (time) {
    xx(4);
  } else {
    $x[5]++;
  }
}