But this of course means *further* special casing your lines to deal with lines whose length is not divisible by four.
Now maybe you're joining us at a time when someone else has already published such an #algorithm freely in a way that you're allowed to copy (which isn't always guaranteed). Well, you're constantly looking for an edge over others, so you're still going to be poring over the #code looking for #LeftBrain tricks to speed it up. Or the hardware will change and now a different...