Objections to runAtomically

[Alastair Reid]

> Since we've talked about mutable state quite a lot, my suggestion
> would be that we write, in addition to the FFI specification, a
> Mutable State specification which documented newIORef, readIORef,
> writeIORef, atomicModifyIORef (and possibly, for reasons of
> efficiency, atomicModifyIORef_).  I don't think it need be very
> long.  It wouldn't have to be frozen right away; it would be good if
> some other working group could be formed to carry it further, so
> that for example it could also include mutable arrays.

It's already stable, well documented, etc. (and has been for something
like 6 years now).  We can reformat the Hugs-GHC library docs into
Haskell Report style and give it the official Haskell committee seal
of approval if it makes you feel any better but the spec won't change
at all in the process so it doesn't alter any of the questions
currently on the table.

--
Alastair