[Haskell-beginners] oddsFrom3 function

[akash g]

Well, it won't work.  Oh, it will compile and you can run it too (stuck in
a infinte loop if you try to force it in any way).   Compilation happens
because this satisfies the type solver.  However, the compiler cannot
ensure non-termination of said program.  Just unrolling it should show you
what's wrong with it.

Unroll once:

oddsForm3 = map (+2) (map (+2) oddsForm3)

Unroll again:

oddsForm3 = map (+2) (map (+2) (map (+2) oddsForm3)

And you can keep on going.  It will never evaluate to a terminal value.

On Mon, Aug 17, 2015 at 11:55 AM, Debdut Karmakar <debdutk at gnulinuxed.tk>
wrote:

> I am a haskell beginner and wondering how the following function works (in
> procedure) :
>
>
> oddsFrom3 :: [Integer]
> oddsFrom3 = map (+2) oddsFrom3
>
>
> Thanks for your help.
>
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