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Re: sub returning undef

by Stevie-O (Friar)
on May 24, 2004 at 14:36 UTC ( #355925=note: print w/ replies, xml ) Need Help??


in reply to sub returning undef

One problem I see is that 'undef' is an array of one element.

You should return an empty list: (). That will be treated as false by all conditionals (if unless while until).

--Stevie-O
$"=$,,$_=q>|\p4<6 8p<M/_|<('=> .q>.<4-KI<l|2$<6%s!<qn#F<>;$, .=pack'N*',"@{[unpack'C*',$_] }"for split/</;$_=$,,y[A-Z a-z] {}cd;print lc


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Re: Re: sub returning undef
by exussum0 (Vicar) on May 24, 2004 at 14:42 UTC

      It would be more appropriate to die on error, and expect the calling code to trap it using:

      eval { # calls go here }; if ($@) { # exception handling here }

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