that didn't quite work --- it gave a type error.
but this did
import LazyST
import ST(runST)
....... runST( lazyToStrictST $ ........
)
byron
On 1 Dec 1997, Simon Marlow wrote:
> Byron Cook <[EMAIL PROTECTED]> writes:
>
> > in ghc-2.09 (solaris) i cannot use runST with LazyST
> > observe:
>
> > $ cat lazy.hs
> > import LazyST
> > main = print $ f True
> >
> > f x = runST(
> > do n <- newSTRef x
> > readSTRef n
> > )
>
> Yes: GHC's LazyST doesn't define runST at the moment (I should have
> documented this deficiency, sorry about that). For now, you can do it
> like this:
>
> import LazyST
> import ST (runST)
> main = print $ f True
>
> f x = runST (lazyToStrictST (
> do n <- newSTRef x
> readSTRef n
> ))
>
> I make no claims about the LazyST stuff: it hasn't been thoroughly
> tested by any means.
>
> Cheers,
> Simon
>
> --
> Simon Marlow [EMAIL PROTECTED]
> University of Glasgow http://www.dcs.gla.ac.uk/~simonm/
> finger for PGP public key
>
