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The Prime That Wasn’t
Life, technology, and other good things
Most cited
Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 6,985 posts.
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Pwncloud – Bad crypto in the Owncloud encryption module
This blog is written by Hanno Böck. Unless noted otherwise, its content is licensed as CC0 .
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Catching use-after-move C++ bugs with Clang's consumed annotations
This post describes a compile-time technique for catching use-after-move bugs in modern C++. It’s currently used to prevent some mistakes in the Serenity Operating System.
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To save C, we must save ABI
After that first Firebrand of an article on Application Binary Interface (ABI) Stability, I’m not sure anyone expected this to be the title of the next one, huh? It seems especially bad,
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The apt command: Combining apt-get and apt-cache and adds a progress bar (2014)
APT 1.0 was released on the 1. April 2014 [0]! The first APT version was announced on the 1. April exactly 16 years ago [1]. The big news for this version is that we included a new “apt”…
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The secret history of the about:jwz url
I realized recently that while I have written about the history of the about:authors URL , I have never explained the history of the about:jwz easter egg . Well, I guess it's been long enough, so now it can be told.
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Java is still available at zero-cost
The Java ecosystem has always been built on a high quality $free (zero-cost) JDK available from Oracle, and previously Sun. This is as true...
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WebAssembly Is Not A Stack Machine
This is the final part of a 4-part miniseries on issues with WebAssembly and proposals to fix them.
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Idiomatic Monads in Rust
A pragmatic new design for high-level abstractions Monads (and, more generally, constructs known as “higher kinded types”) are a tool for high-level abstraction in programming languages1. Historically, there has been a lot of debate inside (and outside) the Rust community about whether monads would be a useful…
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Two Weeks Vacation is only a Recommendation, not a Rule
How much vacation time did you take last year? If you're like most workers in the States, it was probably less than 3 weeks. That's all your...
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Backbone patterns
Here, I try to document the good practices that our team has learned along the way building Backbone applications. This document assumes that you already have some knowledge of Backbone.js , jQuery , and of course, JavaScript itself.
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Do low-level optimizations matter? Faster quicksort with cmov (2020)
Collectively, we have been thinking about sorting for longer than we have had computers. There is still an active literature 1 , 2 , 3 . We are taught that how the counts of comparisons and swaps vary with problem size is what matters: as problems get bigger, order dominates, and anything else is buried in the noise…
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The Unauthorized Story of Andreessen Horowitz
Why media whisperer Margit Wennmachers is going direct.
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Shenandoah GC in production: experience report
Update: I've made several edits to the post since Aleksey Shipilëv was kind enough to suggest many corrections and improvements.If you closely follow JVM development scene, you've probably noticed ...
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Data Science at the Command Line, 2nd Edition (2021)
This thoroughly revised guide demonstrates how the flexibility of the command line can help you become a more efficient and productive data scientist. You’ll learn how to combine small yet powerful command-line tools to quickly obtain, scrub, explore, and model your data. To get you started, author Jeroen Janssens…
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Replacing Python
In the first post, I took a brief look at the programming languages ATS, C#, Go, Haskell, OCaml, Python and Rust to try to decide which would be the …
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Neural Networks Are Essentially Polynomial Regression (2018)
You may be interested in my new arXiv paper, joint work with Xi Cheng, an undergraduate at UC Davis (now heading to Cornell for grad school); Bohdan Khomtchouk, a post doc in biology at Stanford; a…
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You can list a directory containing 8M files, but not with ls
I needed to list all files in a directory, but ls , find , and os.listdir all hung. This is my story.
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Such a Little Thing: The Semicolon in Rust
Look at a tiny syntax detail that shows up in current versions of rust that has profound implications on how the language deals with almost everything being an expression.
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The piracy paradox at Udemy (2015)
My Pluralsight courses get pirated all the time. I used to have Google alerts for them but frankly, the flood of emails I’d get each day just didn’t justify the “return” I’d get by forwarding them on to the Pluralsight piracy folks. I ended up rationalising it
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Reviewing the cryptography used by Signal
Last year, I urged furries to stop using Telegram because it doesn’t actually provide them with any of the privacy guarantees they think it gives them. Instead of improving Telegram’s c…
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Problems with CSVs (2016)
Much of my professional work for the last 10+ years has revolved around handling, importing and exporting CSV files. CSV files are frustratingly misunderstood, abused, and most of all underspecified. While RFC4180 exists, it is far from definitive and goes largely ignored.
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Clojure: Realtime collaborative web apps without ClojureScript
A blog mostly about Clojure programming
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Reverse Engineering a Real Candle
Two years ago, I spent some time analyzing the algorithm used in a candle flicker LED as commonly found in cheap artificial candles. I reverse engineered the algorithm from the flickering pattern…
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What If Linus Torvalds Gets Hit by a Bus? (2000)
The question on the lips of everyone in the Linux community is, "What if Linus Torvalds (affectionately known to the trade press as 'Linux Torvalds') gets hit by a bus?" Reams of virtual paper have been wasted on idle speculation about the results of what is a fairly simple experiment. We decided it was high time…