[Haskell-cafe] Re: ST.Lazy vs ST.Strict

Simon Marlow marlowsd at gmail.com
Wed May 6 07:41:27 EDT 2009

On 05/05/2009 20:42, Tobias Olausson wrote:
> This simple implementation of CPU does not behave as expected in the
> latest version of  ghc using ST.Lazy since it updates the `pc` in the
> wrong order.
> When we use ghc-6.8 the code works as expected both with lazy and strict ST.
> How is that? How do we fix this so we can use ghc-6.10.

Looks like a real bug, I just created a ticket:



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