ch09.052_best

Perl Best Practices the source code

##############################################################################
##   Code fragment (Recommended) from Chapter 9 of "Perl Best Practices"    ##
##     Copyright (c) O'Reilly & Associates, 2005. All Rights Reserved.      ##
##  See: http://www.oreilly.com/pub/a/oreilly/ask_tim/2001/codepolicy.html  ##
##############################################################################


# Standard modules...
use strict;
use warnings;
use IO::Prompt;
use Carp;
use English qw( -no_match_vars );
use Data::Alias;
use Readonly;

sub defined_samples_in { return [1..10]; }
my @floor_samples;
my @restocked_samples;
sub swap_arrays {}

my $floor_samples_ref     = defined_samples_in(@floor_samples);
my $restocked_samples_ref = defined_samples_in(@restocked_samples);
 
# and later...
 
swap_arrays($floor_samples_ref, $restocked_samples_ref);