ch13.025_best

来自「Perl Best Practices the source code」· 025_BEST 代码 · 共 25 行

##############################################################################
##   Code fragment (Recommended) from Chapter 13 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;

my ($min, $max) = (0..9);
my $result = 10000;

croak "Internal error: somehow generated an inconsistent result ($result)"
    if $result < $min || $result > $max;
 
return $result;