Uninitialized value warning at array length check

Question

I have the following code:

my @product_access = @{ $products->{ $PosDetails->{"SalProductRef"}->[$i]}
                      {DetAccess_tab} };

if ( @product_access == 1 )
{
    $revenue{ $products->{ $PosDetails->{"SalProductRef"}->[$i] }{DetFinanceCategory} }
            {"Total"} += $PosDetails->{"SalSubTotal"}->[$i];
}

Right where I check the length of the array, I get a Use of uninitialized value in concatenation warning. It just seems a little odd to get that warning on that line. Why does it show this warning?

Double-check the line number. You shouldn’t get that warning in the code you posted. Note that perl converts "foo$bar" into a concatenation ("foo" . $bar), but you don’t have code of that form either. — Greg Bacon
– Greg Bacon, Commented May 31, 2012 at 0:41
Triple checked the line number Use of uninitialized value in concatenation (.) or string at ./test.pl line 156. and here it is again 156 if ( @product_access == 1 ) Very weird... — Hameed
– Hameed, Commented May 31, 2012 at 0:46

ysth · Accepted Answer · 2012-05-31 01:14:28Z

6

Some versions of perl will report some warnings in an elsif clause on the if line. I'm betting that's the case here.

answered May 31, 2012 at 1:14

ysth

99.1k6 gold badges126 silver badges220 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Hameed Over a year ago

You are right! Warning suggests the problem is in the if statement while it is in one of the elsif Got the correct line number with 5.14.2 built for MSWin32-x86-multi-thread but incorrect line number with v5.8.5 built for sun4-solaris and also with v5.6.1 built for sun4-solaris-64int. Thanks!

Collectives™ on Stack Overflow

Uninitialized value warning at array length check

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related