cvs commit: fptools/ghc/docs/users_guide glasgow_exts.sgml

[Simon Marlow]

> Simon Marlow <simonmar at glass.cse.ogi.edu> writes:
> 
> >   Modified files:
> >     ghc/docs/users_guide glasgow_exts.sgml 
> >   Log:
> >   Remove references to Haskell 1.4, replace with up to date 
> Haskell 98
> >   references.  Includes removing a comment about the fact 
> that Haskell
> >   1.4 didn't have principle types (Haskell 98 fixed that bug).
> 
> Are you sure?  I was under the impression that Haskell'98 still does
> not have principle types.  It does however have principle /typings/
> I believe.

I was referring to a different bug: in Haskell 1.4 constraints like C (m
a) weren't allowed, but they are required for the principle types of
certain functions (see section 4.5.3 in the report). 

I wasn't aware that Haskell had monormorphism-restriction-related
problems with principality too - thanks for pointing it out.  However,
it doesn't affect the commit above.

Cheers,
	Simon