unsafePerformIO and cooperative concurrency

[Ashley Yakeley]

Simon Marlow wrote:
> Given that unsafePerformIO is (perhaps) to be part of the Haskell'
> standard, 

Is there a ticket for this? I would prefer that unsafePerformIO and 
friends not be part of the standard.

At risk of drifting off-topic, I think it would be better to find 
examples where unsafePerformIO is needed and used safely, and come up 
with safe functions for that (but not necessarily as part of the Prime 
effort). IIRC the darcs code uses it a lot.

-- 
Ashley Yakeley, Seattle WA
WWEWDD? http://www.cs.utexas.edu/users/EWD/