Re: [Haskell-cafe] Re: Why is Day and Month bounded?

David House wrote:

On 14/07/06, David Roundy wrote:

...

Anyhow, just thought I'd mention that this isn't useful only for "ordinary" cyclic objects like dates.

Correct. Which is why Chris Kuklewicz included instances for, e.g., Int :)

And the new version takes everything to Integer so there is never any internal overflow.

I think this would be a great class to have in the standard libs. It would be even better if we could derive it.

All the existing instances are just three words: instance Cyclic Foo You only need more if you have something strange, or you want to avoid projecting to Integer. -- Chris