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Yahoo Logo ASCII Animation in 462 bytes of C (2011)
[ Update 10/21/2015: Changed the title from "six lines of C" to "462 bytes of C" to avoid endless arguments about what constitutes a line of C code.]
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The category design pattern
A programming design pattern inspired by category theory
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Anti-Patterns Every Programmer Should Be Aware Of
A discussion of software design and programming anti-patterns to know for every programmer, with examples.
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Redis Geo
Note (version) : I wrote this originally as a Redis module in early 2014, then Redis included a modified version directly into official Redis releases in 2016. Note (implementation) : The implementation included with Redis 3.2+ changed some parameter orderings from my original (intentional, well-thought-out) design…
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Annotated code: Circles bouncing off lines
Uses some simple trigonometry to calculate the movement of circles bouncing off lines.
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Lock freedom without garbage collection in Rust
It’s widespread folklore that one advantage of garbage collection is the ease of building high-performance lock-free data structures. Manual memory management for these data structures is not easy, and a GC makes it trivial.
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A Story About ‘Magic' (1994)
Some years ago, I (GLS) was snooping around in the cabinets that housed the MIT AI Lab's PDP-10, and noticed a little switch glued to the frame of one cabinet. It was obviously a homebrew job, added by one of the lab's hardware hackers (no one knows who).
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Effective Learning Strategies for Programmers
In early September I gave a keynote at Kiwi PyCon in New Zealand on effective learning for programmers. There were two pieces to the talk: one about …
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Going “Write-Only”
Joey Hess inspires me. He lives in a cabin and programs Haskell on a drastically under-powered netbook. He harvests all his electricity from the sun with a homemade electrical system. Joey has designed his computing life to be highly distributed like the git version control he loves. His internet connection is…
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Organizational debt is like technical debt, but worse
Startups focus on speed since they are burning cash every day as they search for product/market fit. But over time code/hardware written/built to validate hypotheses and find early customers can be…
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My favorite interview question
The Official Web Site of Nicholas C. Zakas
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HPC is dying, and MPI is killing it
R&D computing at scale
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Make Your Own Programming Language
This is part 1 in a series of blog posts that follow my work in creating a programming language.
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I think I've solved the Haskell records problem
Today I’m releasing the “record” library, which is an API of just two quasi-quoters, providing a full-scale solution to the notorious records problem of Haskell!
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Who Can Name the Bigger Number?
[This essay in Spanish] [This essay in French] [This essay in Chinese] In an old joke, two noblemen vie to name the bigger number. The first, after ruminating for hours, triumphantly announces "Eighty-three!" The second, mightily impressed, replies "You win." A biggest number contest is clearly pointless when the…
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Code Review Best Practices
What I look for in a code review, from design and duplication to tests, and how I discuss changes with the person who wrote them.
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A Quick Comparison of Nim vs. Rust
Arthur’s thoughts on coding, software engineering, and other interesting things.
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The God Login
I graduated with a Computer Science minor from the University of Virginia in 1992. The reason it’s a minor and not a major is because to major in CS at UVa you had to go through the Engineering School, and I was absolutely not cut out for that kind