* Jinsong Liang <[email protected]> [160714 04:26]:
> Hi,
>
> I want to do nested loops over three lists like the following pseudo code:
>
> for i in '(1 2 3)
> for j in '(4 5 6)
> for k in '(7 8 9)
> //do calculation using i, j, and k. The three lists are not
> related.
> end
> end
> end
>
> What is the best way to do this in Chicken? I can use (for-each ...) or (do
> ...) but it seems neither is straightforward.
Without knowing the purpose of this it's hard to say. However scheme
is flexible enough to allow an almost verbatim translation using
foof-loop:
(use foof-loop)
(loop ((for i (in-list '(1 2 3))))
(loop ((for j (in-list '(4 5 6))))
(loop ((for k (in-list '(7 8 9))))
(print "Magic " i "+" j "+" k " = " (+ i j
k)))))
HTH,
Christian
--
May you be peaceful, may you live in safety, may you be free from
suffering, and may you live with ease.
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