[Haskell-cafe] Re: hmatrix

[Bulat Ziganshin]

Hello Alberto,

Tuesday, June 3, 2008, 11:27:54 AM, you wrote:

>>> Yes, I will try to write a simple version of Data.Array.ST...
> That's right, the correspondence with StorableArray is direct, and
> efficient conversion can be easily added to the library. I mentioned the
> idea of Data.Array.ST to have also the possibility of writing pure code,
> without IO, internally implemented with inplace updates.

STRef/STArray operations are just IORef/IOArray operations imported in
some way/ you can easily import any other operations to ST monad as
far as you use rank-2 types to guarantee that impureness will not
escape the runST call. look into unsafeIOtoST function

providing unmovable STUArray variant may be a good idea


-- 
Best regards,
 Bulat                            mailto:Bulat.Ziganshin at gmail.com