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Re: Perl: last evaluated value as a returned value for a subroutine. See inside

by moritz (Cardinal)
on Feb 21, 2013 at 17:18 UTC ( #1019988=note: print w/replies, xml ) Need Help??

in reply to Perl: last evaluated value as a returned value for a subroutine. See inside

My question is: are there any conditions when Perl would NOT print "some string" in last two lines of code?

I have trouble making sense of this question.

If you change the code, it might do something differently, depending on how you change it. If you don't change the code, it'll do the same thing each time you execute it.

If the fact that $R is returned surprises you, it might help to know that

unless ($A) { $b }

is actually compiled the same as

$a or $b

(and likewise if ($a) { $b } is compiled the same as $a and $b)

which is why branching constructs as the last statement return the value of the conditional.

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[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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