ByteString, foldr and lazyness

[Nicolas Pouillard]

Excerpts from Duncan Coutts's message of Fri Nov 28 15:14:46 +0100 2008:
> On Thu, 2008-11-27 at 15:08 +0100, Mathieu Boespflug wrote:
> > Hi all,
> > 
> > Here's a ghci session, using bytestring-0.9.1.4 and ghc-6.10:
> > 
> > Prelude> :m Data.ByteString.Lazy.Char8
> > Prelude Data.ByteString.Lazy.Char8> :m -Prelude
> > Data.ByteString.Lazy.Char8> foldr (:) [] (concat (Prelude.repeat "a"))
> 
> This does not typecheck.

That's a matter of packing, maybe he has the overloaded strings extension.

-- 
Nicolas Pouillard aka Ertai