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> You'd think a professor would want to encourage better documentation, or at least expose students who are reading this post to some basic commenting.

Welcome to academic code. We're lucky there's any comments at all. :)

What are you even talking about? There's tons of comments and the code isn't obscure. https://github.dev/lemire/Code-used-on-Daniel-Lemire-s-blog/...

What do you think I'm talking about? OP pruned the comments out of github and put the code on the page w/o them. I didn't click to the github page. Still confused?

You mean the small code snippet surrounded by a page full of commentary? You seem to be the confused one.

Looks to be using a lot of similar ideas to the ones explained well in these articles:

https://kholdstare.github.io/technical/2020/05/26/faster-int...

http://0x80.pl/articles/simd-parsing-int-sequences.html

The methods in those articles could be slightly improved by picking better multipliers. https://stackoverflow.com/a/71594769

It's not bad at all https://github.com/lemire/Code-used-on-Daniel-Lemire-s-blog/...

Oh, I didn't follow that link, I was just reading the blog. Those are decent comments, too bad they were nixed for the blog.

But the entire paragraph where they are introduced is a commentary on them.

Code from academia is notoriously unreadable