Re: walk through list and add all n'th item

Wow: loop macro rulez, somehow..
just one correction:
(loop for (a b c d) on (list 1 2 3 4 5 6 7 8) by #'cddddr
      sum a into a-sum
      sum b into b-sum
      sum c into c-sum
      sum d into d-sum
      finally (return (list a-sum b-sum c-sum d-sum)))
Yeah, i might consider this code as beautiful
olivier

Gauche Scheme

(use gauche.lazy)
(use util.match)

(define data (lrange 1 57))

(match (lslices data 4)
  [((a b c d) ...)
   (map (cut fold + 0 <>)
     (list a b c d))])

(378 392 406 420)