APM: Dumb program acting funny...
Bill Raty
bill.raty at gmail.com
Wed Oct 18 22:14:40 PDT 2006
You have warnings enabled 'the -w switch on shebang'.
With warnings enabled perl will output a message whenever it detects an
undefined value in a join or string interpolation. To demonstrate:
use warnings;
use strict;
my $empty = undef;
print "Perl will warn about this $empty string.\n";
I rarely use warnings in production code. It is better to locally scope
warnings in code sections where you are certain you must always have data
that is not null.
Regards,
-Bill
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