Re: [Haskell-cafe] Re: Type-level arithmetic

And Haskell embedded a logical programming language on accident. On 10/15/07, Manuel M T Chakravarty wrote:

Dan Piponi wrote,

...

On 10/12/07, Brandon S. Allbery KF8NH wrote:

...

He wants to write entire programs in the type system, something like the crazies who write programs in C++ templates such that template expansion does all the work at compile time

Crazies? :-) http://homepage.mac.com/sigfpe/Computing/peano.html

Having switched from C++ to Haskell (at least in my spare time) I thought I'd escaped that kind of type hackery but it seems to be following me...

The way I see, we are trying to come up with a clean way of providing type-level computations (ie, we use and extend the standard theory of HM type systems). C++ embedded a functional language in the type systems mostly by accident, whereas we do it on purpose.

Manuel

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