Re: Handling uninitialized values

Or if $sub_dir is always going to be empty, then why are you using it?

I am assuming that you have some kind of loop going on where $sub_dir may or may-not be assigned. In that case I would try something like:

my $path = join('', $dir, ($foo || ''), $file);
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This will fail if $foo == 0 so if that is a possibility then you could use..

my $path = join('', $dir, (defined $foo ? $foo : ''), $file);
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Re: Re: Handling uninitialized values by blue_cowdawg (Monsignor) on May 23, 2001 at 01:01 UTC
Very good point. If a var is going to be empty... toss it. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Peter L. Berghold --- Peter@Berghold.Net "Those who fail to learn from history are condemned to repeat it."	[reply]
Re: Re: Handling uninitialized values by THRAK (Monk) on May 23, 2001 at 16:12 UTC
If you read the question again, you will see the first thing I mentioned was that this was in a loop and the value is undefined when accessing files in the root location. This was only a small snippet to illustrate the point of the question. -THRAK www.polarlava.com	[reply]