A Tutorial on Portable Makefiles
In my first decade writing Makefiles, I developed the bad habit of liberally using GNU Make’s extensions. I didn’t know the line between GNU Make and the portable features guaranteed by POSIX. Usually it didn’t matter much, but it would become an annoyance when building on non-Linux systems, such as on the various BSDs. I’d have to specifically install GNU Make, then remember to invoke it (i.e. as
Rolling your Own Blockchain in Haskell
Bitcoin and Ethereum provide a decentralized means of handling money, contracts, and ownership tokens. From a technical perspective, they have a lot of moving parts and provide a good way to demo a programming language. This article will develop a simple blockchain-like data structure, to demonstrate these in Haskell: Writing a binary serializer and deserializer Using cryptographic primitives to c
Understanding Asymmetric Numeral Systems
Published on August 20, 2017; updated on August 22, 2017 Apparently, Google is trying to patent (an application of) Asymmetric Numeral Systems, so I spent some time today learning what it is. In its essense lies a simple and beautiful idea. ANS is a lossless compression algorithm. Its input is a list of symbols from some finite set. Its output is a positive integer. Each symbol \(s\) has a fixed k
The huge and long awaited release is finally here! – gtk-rs
It has been a long time since the last release (4 months already!). We wanted to be sure everything was ready before releasing this one. A lot of new adds, bug fixes and other surprises are there, have fun! Changes § For the interested ones, here is the list of the (major) changes: cairo: Add Format::stride_for_width() as a wrapper for cairo_format_stride_for_width() ImageSurface: return a Result<
Experiments In NES JIT Compilation
Inspired by the always-incredible work on Dolphin, I decided to write myself an NES emulator called Corrosion a couple years ago. I managed to get it working well enough to play basic games, and then put the project aside. This post is not about the emulator itself, but rather the JIT compiler I added to it last year and the upgrades to said JIT compiler I’ve made over the past few weeks. Having r
Rust release milestone predictions
This post is a wiki. Anybody can edit it! Make your best guesses. Hey there. I just finished some unstable feature triage. It seems like there’s a lot cooking. Lately I’ve been anxious about filling the feature pipeline, and making sure we have big-ticket things to crow about in release announcements, so I’ve projected forward a few releases the things that seem like they are in the works. So here
graydon2 | "What next?"
Warning: this has turned out to be a .. long post. Recently, on the twitters, Stephanie Hurlburt suggested that it'd be healthy for people who have been around the computering industry for a while (*cough cough*) to take some "audience questions" from strangers. I obliged, and someone asked me an interesting one: "After memory safety, what do you think is the next big step for compiled languages t
Abusing Haskell dependent types to make Redis queues safer
I don’t know about you, but quite frankly I’m tired of seeing the same tired vector example being used to demonstrate why dependent types are useful. Recently, I had the opportunity to use current Haskell’s dependently-typed facilities to solve a somewhat contrived, yet real-world problem. Below I will go through the steps I took in moving from an untyped free-for-all to having GHC reject more bad
F*dging up a Racket
Danny Yoo <dyoo@hashcollision.org> Source code can be found at: https://github.com/dyoo/brainfudge. The latest version of this document lives in http://hashcollision.org/brainfudge. 1 IntroductionIf people say that Racket is just a Scheme, they are short-selling Racket a little. It’s more accurate to say that Racket is a language laboratory, with support for many different languages. Is that reall
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うっかり全体魔法で灰になる大人たちへ ／ 重音テト＋雨鳥ユウイ
Why didn't electricity immediately change manufacturing?