On Fri, Jul 10, 2015 at 11:40 PM, Pekka Niiranen
<pekka.niira...@pp5.inet.fi> wrote:
> Thanks Sir,
>
> This was exactly what I tried to reason.
> It never occured to me that parameter "failure" can be used
> in both for/fold -constructs.
I must fix once again my code. Sigh. I fixed a mistake, and renamed
one of the two failures accumulators, so as to avoid possible
confusion. What I should have written in the first place is:
(define (validate-ranges value-list low-list high-list)
(for/fold ((failures 0))
((low (in-list low-list))
(high (in-list high-list)))
(for/fold ((failures2 failures))
((value (in-list value-list)))
(if (<= low value high)
failures2
(add1 failures2)))))
Cheers
P.
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