`partition'

[Josef Svenningsson]

> No, sorry.  It constitutes a change in library API, which you can't
> #ifdef your way around because there isn't a CPP symbol which changes
> with the patchlevel (on purpose).
> 
In what sense is it a change in the API? The only thing that is needed is to
add a tilde to a pattern. This does not change the interface of the library.
I see no reason to #ifdef around it. But if your policy is not to change the
semantics of functions between patchlevels then I'll guess we'll survive
until 6.4.

All the best,

	/Josef


> On 14 October 2004 11:09, Serge D. Mechveliani wrote:
> 
> > Indeed, could it?
> >
> > For 6.2.2 is have not been released so far ...
> >
> >
> >
> > On Thu, Oct 14, 2004 at 12:02:20PM +0200, Josef Svenningsson wrote:
> >> A little browsing in the CVS reveals that partition is fixed in GHC's
> >> libraries but that it was done after the 6.2 branch. So the 6.2
> >> branch is still using the old erroneous definition.
> >>
> >> Could this fix be merged into the 6.2 branch, please?
> >>
> >> 	/Josef
> >>
> >>> -----Original Message-----
> >>> From: glasgow-haskell-bugs-bounces at haskell.org
> >>> [mailto:glasgow-haskell- bugs-bounces at haskell.org] On Behalf Of
> >>> Johannes Waldmann
> >>> Sent: den 14 oktober 2004 10:30
> >>> To: Serge D. Mechveliani
> >>> Cc: glasgow-haskell-bugs at haskell.org
> >>> Subject: Re: `partition'
> >>>
> >>>
> >>>> the function  let  ns = [1 .. 10^6] :: [Int]
> >>>>                    p  = partition even ns
> >>>>               in
> >>>>               take 2 $ fst p
> >>>>
> >>>> computes too long in                 ghc-6.2.2-September-26
> >>>> and needs several megabyte of stack.
> >>>
> >>> this has been noticed a few times, for example
> >>> http://www.mail-archive.com/haskell@haskell.org/msg07508.html
> >>>
> >>> --
> >>> -- Johannes Waldmann,  Tel/Fax: (0341) 3076 6479 / 6480 --
> >>> ------ http://www.imn.htwk-leipzig.de/~waldmann/ ---------
> >>>
> >>> _______________________________________________
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> >>
> >>
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