[Haskell-beginners] Map on Nested Lists

Thomas Davie tom.davie at gmail.com
Thu Apr 8 11:38:31 EDT 2010


On 8 Apr 2010, at 16:34, Stephen Tetley wrote:

> On 8 April 2010 14:37, Thomas Davie <tom.davie at gmail.com> wrote:
>> You can't write a single such function to operate on all the different
>> types, .... [SNIP]
> 
> Hi Bob (?)
> 
> I believe Oleg Kiselyov's deepset functor manages it...
> 
> http://okmij.org/ftp/Haskell/typecast.html
> http://okmij.org/ftp/Haskell/deepest-functor.lhs
> 
> PS - is it Bob or Thomas? thanks.

Well corrected, and either.

Ta

Bob


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