strictness of interpreted haskell implementations
duncan.coutts at worc.ox.ac.uk
Fri Apr 25 15:17:53 EDT 2008
On Fri, 2008-04-25 at 09:08 -0700, Don Stewart wrote:
> > Are there well-known differences in the implementations of Haskell in
> > ghci and hugs? I've got some moderately intricate code (simulations
> > of pipelined processors) that behave differently - apparently because
> > ghci Haskell is stricter than hugs Haskell, and I cannot find any
> > obviously relevant claims about strictness in the documentation.
I think they should give the same answer. It sounds like a bug in one
implementation or the other.
> Hugs does no optimisations, while GHC does a truckload, including
> strictness analysis. Some of these optimisations prevent space leaks.
Though none should change the static semantics.
Post the code. Even if you don't have time to track down the difference,
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