But if you return undef or 0, the error is unspecific, it just means there was a failure... how do you address the specifics? I have been struggling with error checking myself, so I am quite curious what responses will appear.
Update: By the way, the way that I have been handling errors in modules is to have a sub called error() which takes a string, stores it in an ERRORS array in the package, and return undef, so I can have code like this:
open(TEST, ">$file") or return $self->error("Failed to open $file");
That way, I get the undef return value, and store the error in the array in one shot. There's probably a few better ways, though.
Hot Pastrami
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