According to the eval documentation, "If there was no error, $@ is guaranteed to be a null string." According to True or False? A Quick Reference Guide, the only expressions that would be false but not a null string are undef and 0 (or "0").

I think the only way there could be an error that is not caught by "if ($@)" would be if you were to throw an exception that uses overload to generate a false value in that case. That is to say, I think "if ($@)" would work in every case except where the code in the eval does something deliberately mean or it has a really unlikely bug.

In reply to Re: Question on "Effective Perl Programming" by kyle
in thread Question on "Effective Perl Programming" by jfroebe

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