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Exploring Clang/LLVM optimization on programming horror
Recently, I’ve come across a not so efficient implementation of a isEven function (from r/programminghorror ).
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 1,020 posts.
152
The complexity that lives in the GUI
The user interfaces are a weird thing. There are all sorts of libraries and frameworks that are supposed to help you on your journey of writing a GUI, but despite all the best practices and frameworks forcing you to eat your vegetables, the GUI always ends up being a ridiculous mess. After pondering some more about…
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Gitlet.js – Git implemented in 1k lines of JavaScript (2015)
I wrote Gitlet to show how Git works under the covers. I wrote it to be readable. I commented the code heavily.
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Functors and Monads for People Who Have Read Too Many “Tutorials”
Title is literally true. This may not be the best place to learn about these concepts for the first time, because I'm going to focus on knocking down the misconceptions about them.
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Why do long options start with two dashes? (2019)
Around 1990, Richard Stallman (RMS) and I were writing the GNU C library getopt() and he wanted to extend it to support long (multi-character) option names for user-friendliness. He considered Unix…
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Will Linux phones stay around this time?
While working through the old posts in order to adjust the front matter (and sometimes more), I thought: Will this last? Or will this go south soon, like it did around with previous projects again? A recent reddit post reinforced this line of thought, so I decided to write down my thoughts on the issue.
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The unreasonable effectiveness of print debugging
Trying out this newsletter thing... It's sort of astonishing to think about how much value I've gotten from Twitter over the last few years. At its best, my...
161
Making Games on Your Own as an Engineer
In the Unity for Software Engineers (now updated and available as a book), series, I give an accelerated introduction to game development in Unity.
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The compiler will optimize that away
A lot of programmers believe that compilers are magic black boxes in which you put your messy code in and get a nice optimized binary out. The hallway philosophers will often start a debate on which language features or compiler flags to use in order to capture the full power of the compiler’s magic. If you have ever…
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Is WebAssembly magic performance pixie dust?
Add WebAssembly, get performance. Is that how it really works?
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Good and Bad Elixir
Words from Chris Keathley
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Learning Common Lisp to beat Java and Rust on a phone encoding problem
This may surprise you if you know me, but I’ve been learning Common Lisp for a few weeks now.
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Computer Science Curriculum in 1000 YouTube Videos
This is The Entire Computer Science Curriculum in 1000 YouTube Videos. The curriculum is going to be organized in 40 courses in total, further organized in 4 academic years...
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A Review of the Zig Programming Language (Using Advent of Code 2021)
I’ve long thought that Zig was an interesting programming language, potentially more interesting than Rust in many respects given that Zig seems to be targetting a more modern C-like language replacement whereas Rust firmly looks like it is trying to take C++ out back like ol’ yeller. Rust is powerful, but the…
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State machines are wonderful tools
I love when my current problem can be solved with a state machine. They’re fun to design and implement, and I have high confidence about correctness. They tend to:
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Migrating from Docker to Podman
Docker has recently announced that Docker Desktop will soon require a subscription and, based on the size of your company, may require a paid subscription. (It remains free for personal use). There has been quite a bit of reaction to this news...
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I'd like to review your README
I'm afraid I'm not accepting new requests for review. I have reviewed all the ones I've received before 2022-03-24.
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Malloc broke Serenity's JPGLoader, or: how to win the lottery
I got the chance to investigate an interesting bug in SerenityOS this week. It was related to the decoding of JPG images in the operating system. For some reason, when a JPG image is viewed, it comes out like this: Lenna, showing up with incorrect colors. Weird, huh? Also seems like a simple confusion of RGB vs. BGR…
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Tmux lets you select and copy text with your keyboard
never leave the comfort of your home row again
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Rust is a hard way to make a web API
It is not just the borrow checker
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.NET 6 vs .NET 5 speedup
A year ago I wrote a post comparing .NET 5 performance with its predecessor on Fusion performance tests, and honestly, I was quite…
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Write a time-series database engine from scratch
It covers how to make a time-series database engine from scratch