collections in hierarchical libraries

[Ashley Yakeley]

In article 
<3429668D0E777A499EE74A7952C382D10157C485 at EUR-MSG-01.europe.corp.microso
ft.com>,
 "Simon Marlow" <simonmar at microsoft.com> wrote:

> I second Daan's opinion here.  The Haskell community has been searching
> for good generic collection interfaces for a while and hasn't come up
> with anything that is obviously the right thing.

I think that's because the "right thing" involves non-98 extensions 
(specifically, multiparameter type classes)...

-- 
Ashley Yakeley, Seattle WA