[Haskell-beginners] Unpacking tuples
patrik.mrx at gmail.com
Mon Dec 4 20:40:46 UTC 2017
Den 4 dec 2017 20:25 skrev "Frerich Raabe" <raabe at froglogic.com>:
On 2017-12-04 20:05, mrx wrote:
> If I have a function that produce tuples with three members and I want
> those members as parameters for a function that takes three parameters.
> How would I unpack that tuple?
> It seems that curry does the trick for tuples with two members.
> How do I do this when there are more than two members?
There are functions like 'curry3' ( http://hackage.haskell.org/pac
kage/utility-ht-0.0.14/docs/Data-Tuple-HT.html#v:curry3 ) but I think if
you don't need this very often, it might be easiest to just go for
let (a,b,c) = f x in g a b c
Ok, so in general I would have to write the unpacking myself. Correct?
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