Sunnan wrote:
Thanks, I guess I was stressed, and forgot that unknown macros can
already be defined. The error message just looked so weird.
I was pretty sleep-deprived at the time.
I hadn't looked at srfi-31 before. I thought I knew most of the srfis.
This one was pretty disappointing.
(define (...) 10)
; They want to write:
((rec (F N)
(if (zero? N) 1
(* N (F (- N 1))))) (...))
;; instead of:
(let f ((n (...)))
(if (zero? n) 1
(* n (f (- n 1)))))
;; it's the exact same number of characters!
Almost - note that REC returns the recursive
function, so you need to return the function
in the let:
((let f ((n (...)))
(if (zero? n) 1
(* n (f (- n 1))))
f)
(...))
--
Jens Axel Søgaard
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