FYI any Windows users out there: https://docs.microsoft.com/en-us/windows/dev-environment/overview

My riff off of <https://twitter.com/grady_booch/status/1288947573277855744|Grady Booch’s post> :)

Hmm… I think I like this one better …

lol - someone in my local slack asked me why I didn’t just compare the lower order bit to 0 :slightly_smiling_face: Wow…

I replied, “that would be too slow”, and the conversation continued :slightly_smiling_face:

I genuinely laughed when I got the the last line of code there

yeah, definitely part of the charm :slightly_smiling_face:

I considered using is-even? in the last line, but I didn’t have time.

Turns out it is faster to check the lower order bit for 0 ! (last one, I promise!)

BTW - I tried using (curry bitwise-and 1) but that resulted in a contract violation from curry - I fixed it by using ((curry bitwise-and 1)) but that was less than satisfying.

I’m hoping for a solution that uses https://docs.racket-lang.org/2d/

See also: https://twitter.com/sliminality/status/1289011783429050368

Sorry, but I just discovered peano numbers, so I had to code a version with those. It’s Friday, we’re in a pandemic, and the channel isn’t super busy, so …

Church encoding next?

Finished my afternoon coffee, so no :)

lol

FWIW, Racket supports peano number almost out of the box.

(define quote add1) ''''0 ; => 4

I need to let others have some of the fun. I set the bar low enough :-o