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Re: Re: Re: Anyone use "xor" in conditionals?

by jsprat (Curate)
on Jul 14, 2003 at 23:41 UTC ( #274226=note: print w/replies, xml ) Need Help??


in reply to Re: Re: Anyone use "xor" in conditionals?
in thread Anyone use "xor" in conditionals?

Try it with a non-existent directory. Perl will warn if you do a numeric comparison with an undefined expression, while undef will evaluate as false in a boolean comparison.

HTH

PS Change the 'if' in your original node to 'unless', but I'm guessing you already know that...

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[Marshall]: Darn! I'll look at the thread. Must not be updatinga byte count somewhere. The .exe format is a complex critter.
[stevieb]: that way, it's still "hard coded" into the exe at least, despite not being visible via Properties
[Marshall]: I also looked into PerlApp from Active State, but they don't sell their Dev Kit independent of a very expensive ($1,200) per year license anymore.
[Corion]: I would assume that the PE format hasn't changed that much since the days of yore, but it seems that I would be wrong in that assumption
[Marshall]: When I bought my copy 15+ years ago, it was just a couple hundred bucks.
[Marshall]: I looked at MS specs for PE format and I didn't see any changes in last decade, but evidenly that would be wrong.

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