[Haskell-beginners] recursive 'let' ?
karl at karlv.net
Fri Apr 11 06:50:19 UTC 2014
On Thu, Apr 10, 2014, at 05:12 PM, John M. Dlugosz wrote:
> I understand that the definitions introduced by 'let' can be recursive,
> even mutually
> recursive among several names. Why would you want to do that? I saw
> contrived examples,
> and wonder why the authors never show a realistic example.
> let b = f a c
> c = f a b
> in ...
I am a bit confused by your question.
I assume you know about the usefulness of recursion in general, and that
your question is only about recursion in the context of a let-binding.
But it seems to me that there is nothing particularly special about the
let-binding context, as compared to, for example, the top level of a
module. So what seems different about it to you?
Your code snippet makes me think that perhaps you are specifically
interested in definitions of non-function values. Is that so?
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