Well matematically 0 and undef do have the same value. There's just the fact that Perl-wise the second may sometimes generate a warning. I tend to turn this warning off anyway because IMHO it just gets in the way.

Jenda
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In reply to Re^5: List::Util::sum() and empty lists... by Jenda
in thread List::Util::sum() and empty lists... by blazar

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