this post was submitted on 29 Aug 2023
224 points (97.5% liked)
Programmer Humor
19512 readers
320 users here now
Welcome to Programmer Humor!
This is a place where you can post jokes, memes, humor, etc. related to programming!
For sharing awful code theres also Programming Horror.
Rules
- Keep content in english
- No advertisements
- Posts must be related to programming or programmer topics
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
You can use an O(n) radix sort on the Z-values because IEEE-754 floats share the integer property that leftmost bits always have higher values than rightward ones.
Oh that just made it click in my head why they would do it as sign, exponent, mantissa and not sign, mantissa, exponent. I mean yes I've been taught it's for sorting purposes, but this really helped it fit better. Thanks!
Thanks man, I'll look into it when I have the time. This should work on all IEEE compliant systems right?
Yes, but... "leftmost" in this case means MSB-sidemost, so little-endian systems will start sorting from the MSB only after loading the full value in a register; if you try sorting directly from memory in binary chunks smaller than the float size, first locate where the MSB is stored.
His do I save a comment?
Holy shit