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[FWP] Re: Neat or horrid?

abigail@arenanetworks.com writes:

> Here's a interesting way to sum the elements of a list:
> 
>     sub sum {@_ ? shift () + &sum : 0}
> 
> 
> Neat or horrid?

Neat, but not as neat as primality testing...

Does it do proper tail recursion?  If not, I'd try

     sub sum {@_ ? shift () + goto &sum : 0}

except that it doesn't work (5.005_03).  I don't think I understand
why not, though.

-- 
Ariel Scolnicov        |"GCAAGAATTGAACTGTAG"            | ariels@compugen.co.il
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