@karlseguin.com I enjoyed your recent post. I use a segment array to avoid that ArrayList+Arena resize awkwardness. One other nice property: it doesn't move existing items when it grows. I wrote about it here: danielchasehooper.com/posts/segmen...

A Fast, Growable Array With Stable Pointers in C

My last article about generic data structures in C was written to set the stage for today’s topic: A data structure with constant time indexing, stable pointers, and works well with arena allocators. ...

danielchasehooper.com

@marcoarment.bsky.social Is there a way to see how many hours of audio are in the "all" playlist? Would be useful to plan for a long drive I have coming up

I wrote a UI library in C that can lay out 95000 items at 60fps. The library is 566 lines of C, and the application-specific ui code is 998 lines. Works on mac, windows, and linux.

New post: Testing Opus 4.5 For C Programming. TLDR: it's good, even for curmudgeons like me, but you need to play to its strengths. You don't have to use it like a dumb yolo vibecoder. danielchasehooper.com/posts/code-a...

Testing Opus 4.5 For C Programming

A grumpy C programmer sees what all the fuss is about

danielchasehooper.com

⭐️ New Article: Snooping On Slow Builds (Using syscalls) danielchasehooper.com/posts/syscal...

Snooping On Slow Builds (Using Syscalls)

Many software projects take a long time to compile. Sometimes that’s just due to the sheer amount of code, like in the LLVM project. But often a build is slower than it should be for dumb, fixable rea...

danielchasehooper.com

⭐️ New Post: A Fast, Growable Array With Stable Pointers in C danielchasehooper.com/posts/segmen...

A Fast, Growable Array With Stable Pointers in C

The C implementation is available here. My last post about generic data structures in C was written to set the stage for today’s topic: A data structure that can be used in place of dynamic arrays,…

danielchasehooper.com

Ok, here's the new way I recommend to do type safe generics in C. It's cleaner compared to my old function-pointer-cast approach, avoids the undefined behavior everyone is so paranoid about, and doesn't require typeof()

Hacked together a weird spiral Mario game prototype

New Post: How I Write Type Safe Generic Data Structures in C danielchasehooper.com/posts/typech...

As a precursor to public key cryptography, William Jevons said in 1874 "What two numbers multiplied together produce 8616460799? I think it unlikely that anyone but I will ever know" Modern computers find the answer in 0.004s: primes 89681 and 96079 Cool for the time, just needed bigger numbers!

I like this comment in the source of /usr/bin/dtruss. It provides context with a "Hey dorks, don't mess with my code" kind of energy.

Weird time to be someone that likes making tools

Not a good sign when fixing a bug requires editing a file with this at the top

This was written by a filmmaker about color science, but it applies just as well to the software industry's dependency problem

Github needs this notification option Tired of getting pinged every time a random person adds their two cents to a Github issue I follow.

@flohofwoe.bsky.social Is there a trick to get alpha blending working in sokol-gl, or does that require making my own pipeline? aka: sgl_begin_triangles(); sgl_c4b(255, 0, 0, 127); ... sgl_end();

It’s wild that iOS still doesn’t have a “lock orientation *except videos*” mode

"C is how a computer actually works"

Today I bought an old TV for visual reference. Played Balatro to see how the game's CRT emulation compared to a real Cathode Ray Tube. Sadly details aren't legible on a 13" TV, and the emulation's scanline/phosphor pattern isn't realistic, but it nails the chromatic aberration.

135,000 Github projects mention "blazing fast" in the readme, but only 3,000 of those mention "benchmark" or "MB/s". So in other words, when you read "blazing fast" think "unserious".

My article titles keep getting longer. I don't know what to make of this.

I'd guess that 93.732% of JavaScript devs don't know about bitmasks. I used them to speed up my sudoku generator.

I designed a new sudoku variant in which every cell has a different shape. Try it here: danielchasehooper.com/posts/cracke...

Had fun following the #glsl shader tutorial from @danielchooper.bsky.social. I added Morty to be complete.

Thanks to everyone that got it to the front page of hacker news news.ycombinator.com/item?id=4295...

TIL: Perlin Noise was invented as recently as 1983, and its inventor, Ken Perlin, is still alive. Feels like something that could’ve been invented centuries ago by some French dude.

Live coding an animated SDF shader

Can't wait to see what happens to all the AI-dependent junior programmers when the next trendy framework drops and their AIs can't help because all the Q&A training data is locked up in Discord.

⭐️ New Post: Animating Rick and Morty One Pixel at a Time. An interactive guide on making animations on the GPU

Animating Rick and Morty One Pixel at a Time

An interactive guide on making 2d animations using signed distance fields in GPU shaders

danielchasehooper.com

I'm publishing a blog post tomorrow that I've been working on over several months. The post has a built in shader editor. I made an animated Rick with it lol