Ryan Frantz wrote:
> I'm (very) new to Perl but I thought there was an easier way to do
> this. I use the '-w' switch when specifying my interpreter at the
> beginning of my script:
>
> #!/usr/bin/perl -w
>
> and it always tells me if I have a declared variable that doesn't get
> used.
>
> ry
You are not using strict because if so then declaring say my $abc; and
using strict and -w, I do not get any warning. Hopefully one of Perl gurus can
enlighten us.
Wags ;)
>
> -----Original Message-----
> From: Bob Showalter [mailto:[EMAIL PROTECTED]
> Sent: Wednesday, June 08, 2005 2:52 PM
> To: 'Troy S'; beginners@perl.org
> Subject: RE: perl question - unused variables
>
> Troy S wrote:
>> How can i automatically detect unused variables in Perl?
>>
>> i delcrae variables like:
>> my $abc;
>>
>> but don't use $abc within the subroutine.
>>
>> how can i get perl to autmatically tell me that $abc is not being
>> used (other than the declaration)????
>
> Possibly use the output of B::Xref to look for variables with only an
> introduction ("i")?
>
> perldoc B::Xref
>
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