Hacker News: dhooper

New comment by dhooper in "Ask HN: Share your personal website"

dhooper — Wed, 14 Jan 2026 19:09:56 +0000

www.danielchasehooper.com

New comment by dhooper in "How I bypassed Amazon's Kindle web DRM"

dhooper — Fri, 17 Oct 2025 01:58:22 +0000

I've always wanted it to work this way. However it'd only work if you had a case with the magnetic cover to turn on the device. Otherwise someone would pick up their un-cased kindle with the page lock screen, start reading, and then get confused when they tried to turn the page and nothing happened — the device would still be off!

New comment by dhooper in "I made a real-time C/C++/Rust build visualizer"

dhooper — Fri, 15 Aug 2025 15:40:37 +0000

I used the term "early access" when I should've used "private beta". The sign up is just for me to have an email addresses to send the private beta when the next update goes out, and I'll follow up for feedback. Nothing sinister is happening.

New comment by dhooper in "I made a real-time C/C++/Rust build visualizer"

dhooper — Fri, 15 Aug 2025 01:11:13 +0000

Good suggestion. Updated.

New comment by dhooper in "I made a real-time C/C++/Rust build visualizer"

dhooper — Thu, 14 Aug 2025 20:29:58 +0000

Thanks CyberDildoNics!

New comment by dhooper in "I made a real-time C/C++/Rust build visualizer"

dhooper — Thu, 14 Aug 2025 18:59:10 +0000

I use whatever the equivalent is on that OS.

New comment by dhooper in "I made a real-time C/C++/Rust build visualizer"

dhooper — Thu, 14 Aug 2025 18:52:11 +0000

I'll be sending out the a macOS version to another wave of beta users after I fix an outstanding issue, if you sign up (at bottom of article) and mention this comment I can make sure you're in that wave.

New comment by dhooper in "I made a real-time C/C++/Rust build visualizer"

dhooper — Thu, 14 Aug 2025 18:39:45 +0000

Thank you! Yeah it can be used for any type of program, but I haven't been able to think of anything besides compilation that creates enough processes to be interesting. I'm open to ideas!

New comment by dhooper in "I made a real-time C/C++/Rust build visualizer"

dhooper — Thu, 14 Aug 2025 18:33:47 +0000

OP Here. Thats an interesting idea. What The Fork knows all the commands run, and every path they read/write, so I should be able to make it estimate build time just by looking at what files were touched.

New comment by dhooper in "I made a real-time C/C++/Rust build visualizer"

dhooper — Thu, 14 Aug 2025 18:28:19 +0000

(OP here) Thanks!

My call with the Mozilla engineer was cut short, so we didn't have time to go into detail about what he found, I want to look into it myself.

I made a real-time C/C++/Rust build visualizer

dhooper — Thu, 14 Aug 2025 16:06:55 +0000

Article URL: https://danielchasehooper.com/posts/syscall-build-snooping/

Comments URL: https://news.ycombinator.com/item?id=44902127

Points: 417

# Comments: 89

New comment by dhooper in "A fast, growable array with stable pointers in C"

dhooper — Wed, 06 Aug 2025 21:39:43 +0000

1. The image at the top of the article makes it clear the segments aren't contiguous

2. iterating a 4 billion item segmented array would have 26 cache misses. Not a big deal.

New comment by dhooper in "A fast, growable array with stable pointers in C"

dhooper — Wed, 06 Aug 2025 20:13:18 +0000

feel free to call it a "levelwise-allocated pile"

New comment by dhooper in "I write type-safe generic data structures in C"

dhooper — Tue, 01 Jul 2025 03:00:28 +0000

Not sure what you mean by that, but if you're trying to imply that C is not relevant: https://www.tiobe.com/tiobe-index/

Plus an article about C was at the top of hacker news all day today.

New comment by dhooper in "I write type-safe generic data structures in C"

dhooper — Mon, 30 Jun 2025 23:48:16 +0000

The assignment is intentional. The union changed to a struct

New comment by dhooper in "I write type-safe generic data structures in C"

dhooper — Mon, 30 Jun 2025 20:55:29 +0000

Thanks, this post is about C.

On some projects you must use C.

New comment by dhooper in "I write type-safe generic data structures in C"

dhooper — Mon, 30 Jun 2025 20:53:41 +0000

msvc 19.39 is the first to support it, which I mention in the article. You can confirm it didn't work up through 19.38 in godbolt [1]. I don't use Visual Studio, so I don't know what version of that first started using msvc 19.39

[1] https://godbolt.org/z/M7zPYdssP

New comment by dhooper in "I write type-safe generic data structures in C"

dhooper — Mon, 30 Jun 2025 19:24:06 +0000

This is addressed in the footnotes. casting is not the core of the type safety. Read the whole article.

New comment by dhooper in "I write type-safe generic data structures in C"

dhooper — Mon, 30 Jun 2025 18:49:44 +0000

Author here. It's worth noting that no work is being done in the macros of my article, they compile down to a normal c function call which you can step through in a debugger.

There is little benefit in monomorphizing the implementation of a data structure like a linked list where its behavior doesn't depend on the contents of the data it contains (compared to, say, a max heap)

New comment by dhooper in "I write type-safe generic data structures in C"

dhooper — Mon, 30 Jun 2025 18:46:25 +0000

Author here. Binary heaps and linked lists are different use cases. A binary heap must read the data you put in it to store it correctly, but a linked list doesn't. If I were writing a generic binary heap, maybe I would weigh my options differently. I mentioned this in the footnotes.