[Haskell-cafe] What can be UNPACK'ed?

[Tom Ellis]

On Sun, Jul 30, 2017 at 04:29:19PM -0500, amindfv at gmail.com wrote:
> >  Technically it could be possible to reserve enough space in Foo to
> > store either a [] or a (:) Float [Float].
> 
> What if it's an infinite list? Do you just want to unpack the first cons
> and not the whole list?

Yes indeed.  That's what I meant by

    store either a [] or a (:) Float [Float]

(And I'm not saying I want to, just that it could be done.)