Posts that commenters keep linking to, ranked by how many different people have cited them in Hacker News comments. 2,232 posts.
When I got started using the Datomic database, I remember someone describing it to me as 'Event Sourcing without the hassle'. Having built Event Sourcing systems both with and without Datomic, I think this is very well put, although it might not be obvious, especially if you don't have much experience with Datomic.
Lately, there has been a lot of experimentation with very short programs that synthesize something that sounds like music. I now want to sha...
Way back in June, in Replacing Python: second round, I wrote: The big surprise for me in these tests was how little you lose going from Python to …
Building resilient services by identifying foreign state mutations and grouping local changes into restartable atomic phases so that every request can be driven to completion.
This document serves as a collection of reasons why beginners should avoid Python 3 as of November 22nd, 2016. I give two sets of reasons as I see them now. One for total beginners, and another for people who are more knowledgeable about programming. The first section attempts to explain the case against starting with…
Like most programming languages, Rust encourages the programmer to handle errors in a particular way. Generally speaking, error handling is divided into two broad categories: exceptions and return values. Rust opts for return values.
We’re going to reproduce some results from papers on filesystem robustness that were written up roughly a decade ago : Prabhakaran et al. SOSP 05 paper , which injected errors below the filesystem and Gunawi et al. FAST 08 , which looked at how often filesystems failed to check return codes of functions that can…
One thing that works well in practice in cases where you really don’t want to process single bytes at a time is to use a union for going from one type to another. Granted, writing one member of a union and reading from a different one also isn’t allowed per the standard, but every compiler I’ve come across allows it…
I want terminal keypresses to Just Work. What do I mean Just Work? I mean programs in a simple orthogonal way, can determine the key that was pressed, and this model should easily map to the user's expectation.
Practical Racket macros
Update 2022 : TheIronBorn has found even better permutations using a smarter technique. That thread completely eclipses my efforts in this article.
Earlier this month a new paper by Naomi Benger, Joop van de Pol, Nigel Smart, and Yuval Yarom hit the news . The paper explains how to recover secret keys from OpenSSL's implementation of ECDSA-secp256k1 using timing information from "as little as 200 signatures"; ECDSA-secp256k1 is the signature system used by…
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Some updated tips for porting software to Python 3.
The little routine presented here is, with all due humbleness, hands down the best code I ever wrote. It is esoteric and might not appeal to the masses, and it certainly has no commercial value. But in terms of personal satisfaction at a job well done, this is about as good as it gets. Here's why:
Description of what we have learned
I’m an embedded systems engineer. I spend a lot of my free time looking for things I could use in future designs, or things that tickle one of my fancies.
Hello friends! :^) Let me tell you a story…
(I'm still looking for the catchiest way to appreciate the number MMXXVI. Exercise 7.2.1.6–122 gives 1234+.5*6+789 and -1+2345*6/7+8+9 and 1+(2/3)*45*67.8-9 ; other suggestions are welcome. The most elegant that I've seen so far is a beauty that was suggested independently by Arnaud Lefebvre and by Evangelos…
Across 16 coding models, hashline’s content-hash line anchors beat patch for 14 models; the weakest models gained the most.
