On Fri, Jan 09, 2009 at 01:11:12AM +0100, Henning Thielemann wrote:
> Maybe the report is not complete? I mean, the current behaviour of Hugs
> and GHC (as I observed it) is more consistent, and maybe that's what the
> designers had in mind.
I'm puzzled by the Hugs behaviour. The current version rejects it, and
I downloaded and built the Mar2005 version just to check, and it also
rejected it, saying
Illegal Haskell 98 class constraint in class declaration
I think the GHC behaviour is connected with GHC's deferred context
reduction, which also does not conform to Haskell 98.
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