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Building a simple shell in C – Part 3
Implementing the execution functionality of the shell
Topics /
Software Engineering
The most popular blog posts about software engineering on Hacker News. 14,544 posts.
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On Go, Portability, and System Interfaces
I've been noticing more and more lately that we have a plethora of libraries and programs written for Go, which don't work on one platform o...
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Yet Another Zip Trick
At hackArcana, we deliver professional educational content authored by world-class experts in programming, binary analysis, and cybersecurity.
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A circuit-like notation for lambda calculus (2015)
Lately, I’ve been playing around with inventing a visual writing system for lambda calculus.
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Parsing Protobuf Definitions with Tree-sitter
If you work with Protocol Buffers (protobuf), you can really save time, boredom, and headache by parsing your defin…
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High-Resolution Mandelbrot in Obfuscated Python
Here’s a followup to last month’s post about Penrose Tiling in Obfuscated Python. The Mandelbrot set is a traditional favorite among authors of obfuscated code. You …
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3 billion items in Java Map with 16 GB RAM
One rainy evening I meditated about memory managment in Java and how effectively Java collections utilise memory. I made simple experiment, how much entries can I insert into Java Map with 16 GB of RAM?
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The "Soft Maximum" function
The soft maximum approximates the maximum function, and approaches it in the limit, but is easier to work with.
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"Maybe later" was a feature
The most valueble code in my repo, is the code I didn't write.
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This must already exist
I encounter this feeling frequently. I have a sudden need (or idea) and I realize that such and such a tool or service must already exist. As a software engineer, I’ve learned to not let that feeling pass. Usually, it’s a chance to learn something (because usually it does exist) and sometimes it’s a chance to to build…
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Compiling History: A brief tour of C compilers
As the story of C’s birth goes hand in hand with the creation of Unix, the first C compiler can be traced back to the early 1970’s.
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Parsing bitstreams with Nom
How to use Nom to parse binary protocols at the level of individual bits
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Mu: A minimal hobbyist computing stack
Over the past year I've been working on a minimal-dependency hobbyist computing stack (everything above the processor) called Mu . The goal is to:
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Functional-navigational programming in Clojure with Specter
In February I open-sourced a library called Specter , and in my own work it has become by far my m...
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Rusty Typestates – Starting Out
This post is part of a series, you can see an overview of the whole series in [ rust-typestate-index ].
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JVM Performance Comparison for JDK 21
The current article describes a series of Java Virtual Machine (JVM) benchmarks with a primary focus on top-tier Just-In-Time (JIT) compilers, such as C2 JIT, and Graal JIT. The benchmarks are structured in three distinct (artificial) categories:
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The Birth of Standard Error
Earlier today Stephen Johnson, in a mailing list run by the The Unix Heritage Society , described the birth of the standard error concept: the idea that a program's error output is sent on a channel different from that of its normal output. Over the past forty years, all major operating systems and language libraries…
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Recursion into madness
Raymond Chandler would have loved generative AI
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Avoiding Worry Driven Development
Sofware dysfunction is more often motivated by worry than it is by a lack of technical skill
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What's in a Parser Combinator? (2016)
Simplex Sigillum Veri
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Replacing My Window Manager with Google Chrome
A lesson in X11, networking, and design.
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F-Secure Anti-Virus: Remote Code Execution via Solid RAR Unpacking
Blog about anti-virus software vulnerabilities.
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Using obscure graph theory to solve programming languages problems
Usually I write about solutions to problems I’ve worked out, but I’ve found myself increasingly becoming interesting in where solutions come from. Maybe it’s because I’ve been reading Boorstin’s excellent The Discoverers , which I’d strongly recommend.
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Writing OOP using OOP
As many people have pointed out, if you turn your head sideways and squint, the following JavaScript can be considered a “class:”