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Re^2: Hope a subroutine will return undef by default

by qj1020 (Initiate)
on Feb 11, 2014 at 17:23 UTC ( #1074457=note: print w/ replies, xml ) Need Help??


in reply to Re: Hope a subroutine will return undef by default
in thread Hope a subroutine will return undef by default

Thanks to you all for replying and giving me some thoughts. Will check out the link of the youtube video when I get more time.

Here is more of the context: the subroutines (in the form of strings) was sent to my server on the fly for execution by a function under my control. I wish I can go and change the source of the subroutines to add an explicit "return undef" (the function is executed on my side in scalar context, so it's ok) but I can't. I am thinking of modifying the incoming subroutines, if it doesn't have a "return undef" before the ending of the subroutine, I will add one. But it's not elegant.


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