[Haskell-cafe] 1/0

David Roundy droundy at darcs.net
Mon Jun 16 20:05:03 EDT 2008


On Mon, Jun 16, 2008 at 04:50:05PM -0700, John Meacham wrote:
> On Mon, Jun 16, 2008 at 04:41:23PM -0700, Evan Laforge wrote:
> > But what about that NaN->Integer conversion thing?
> 
> I think that may be a bug or at least a misfeature. The standard is
> somewhat vauge on a lot of issues dealing with floating point since
> it is such a tricky subject and depends a lot on the environment. The
> various rounding funcitons are particularly ugly IMHO. I added varients
> of them that preserved the floating point type and properly implemented
> IEEE behavior for jhc.

I think the Data.Binary guys think it's a feature, since they rely in
this behavior (well, they rely on the equivalently-foolish behavior of
toRational).  I think it's a bug.

David


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