Re: [Haskell-cafe] unsafeDestructiveAssign?

Yeah I'm thinking that even if I had such a function, it might be impossible to make it play nicely. I think I can do a restricted form of what I want with STRefs and StableNames (still dangerous) so I think I'll stick with that at least while experimenting in haskell. DCC looks extremely interesting! In fact it looks like I can do what I'm wanting out of the box! I will definitely have to experiment with it :) Thanks, On Wed, Aug 12, 2009 at 12:46 AM, Bernie Pope wrote:

2009/8/12 Job Vranish :

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Does anybody know if there is some unsafe IO function that would let me do destructive assignment? Something like:

a = 5 main = do veryUnsafeAndYouShouldNeverEveryCallThisFunction_DestructiveAssign a 8 print a

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8

I doubt you will be able to achieve that in Haskell, but there is another language which does support what you want which is very close to Haskell. It is called Disciple, and there is a compiler for it called DDC:

http://www.haskell.org/haskellwiki/DDC

DDC is rather young, so it depends on what you are doing as to whether it will fulfil all your needs.

Cheers, Bernie.