[Haskell-cafe] REALLY simple STRef examples

[Chad Scherrer]

Whoa. That changes everything I thought I knew about ($). Come to
think of it, one of the examples that does work it written
main = print $ runST f
where f is defined separtely. So that's consistent.

I'll take a look at the references. Thanks!

>
> Indeed. The short answer: use
>         runST (long expression)
> rather than
>         runST $ long expression
>
> when it comes to higher-ranked functions such as runST.
> A longer answer:
>         http://www.haskell.org/pipermail/haskell-cafe/2004-December/008062.html
>
> > let me know what i need to read to fix it myself
> MLF (see Daan Leijen, A. Loeh, `Qualified types for MLF', ICFP05)
>
>