#!/usr/bin/perl
# Copyright 2004-2017, 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;
sub p {
my $x = shift || 11;
my $y = shift || [];
my $z = shift || {};
}
p $_, $_, $_ for 0, 1;