[Haskell-cafe] Re: howto tuple fold to do n-ary cross product?

[Larry Evans]

On 11/30/08 12:04, Larry Evans wrote:
[snip]
> The following post:
> 
>   http://thread.gmane.org/gmane.comp.lib.boost.devel/182797
> 
> shows at least one person that would find it useful, at least in
> c++.  Of course maybe it would be less useful in haskell.

One thing that maybe confusing things is that the c++ template
code calculated a crossproduct of types, not values.  The
haskell code:

   cross::[[a]]->[[a]]

calculate a cross product of values.

Sorry if that was unclear.  I was trying to use haskell
to guide me in doing something similar with c++ template
metaprogramming.