Perl.Org wrote:
Gunnar Hjalmarsson wrote:
If you have made your scripts pass $^W (or the -w switch) without
generating warnings, you obviously don't need the flexibility
that "use warnings;" may offer, so there is really no need to
replace $^W with "use warnings;" just because Perl is upgraded.
Actually I've just started adding $^W to my scripts and modules and
haven't seen any warnings yet.
Then you are either a very good coder, or you are missing something. ;-)
What could I insert to generate a warning?
An example:
my $var;
if ($var < 5) {
print "$var is less than 5\n";
}
That code should trigger two common warning messages:
"Use of uninitialized value in numeric lt («)"
and
"Use of uninitialized value in concatenation (.) or string"
--
Gunnar Hjalmarsson
Email: http://www.gunnar.cc/cgi-bin/contact.pl
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