On 12-04-28 10:16 AM, sono...@fannullone.us wrote:
I'm having a problem with the following code:
#!/usr/bin/perl
use strict;
use warnings;
my $xtra = 'mail.example.com';
my $host = 'localhost' unless (defined ($xtra));
# this is the same as saying:
my $xtra = 'mail.example.com';
my $host;
if( ! defined( $xtra )){
$host = 'localhost';
}
# are you sure this is what you want?
print $host;
I get the message "Use of uninitialized value $host in print". Does
anyone know why this doesn't work?
Thanks,
Marc
--
Just my 0.00000002 million dollars worth,
Shawn
Programming is as much about organization and communication
as it is about coding.
[updated for today's programmers]
"Show me your code and conceal your interfaces, and I shall continue
to be mystified. Show me your interfaces, and I won't usually need
your code; it'll be obvious."
-- Fred Brooks
Don't be clever; being great is good enough.
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