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Software Engineering
The most popular blog posts about software engineering on Hacker News. 21,830 posts.
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A general overview of what happens before main() (2019)
8 April 2019 by Phillip Johnston • Last updated 22 August 2022For most programmers, a C or C++ program’s life begins at the main function. They are blissfully unaware of the hidden steps that happen between invoking a program and executing main. Depending on the program and the compiler, there are all kinds of…
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A step-by-step guide to building a simple chess AI
Let’s explore some basic concepts that will help us create a simple chess AI:
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SQLite's Automatic Indexes
SQLite's optimizer creates indexes automatically to improve query performance with only nested loop joins.
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The stack monoid revisited
This is a followup to my previous post on the stack monoid, but is intended to be self-contained.
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Build your own SQLite in Rust, Part 5: Evaluating queries
In the previous posts, we've explored the SQLite file format and built a simple SQL parser. It's time to put these pieces together and implement a query…
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Committing Without Git
How does git store different versions of a file? What about a commit? Find out creating your own commit without the help of git.
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From macOS to FreeBSD
Personal experience with moving away from Apple's world.
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Machine Code Isn't Scary
Machine code isn't scary. If you can make sure your JSON conforms to a JSON schema, you can write machine code.
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A four year plan for async Rust
Four years ago today, the Rust async/await feature was released in version 1.39.0. The announcement post says that “this work has been a long time in development – the key ideas for zero-cost futures, for example, were first proposed by Aaron Turon and Alex Crichton in 2016”. It’s now been longer since the release of…
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Best practices can slow your application down
In order to get the most performant site possible when building the codebase for our public Stack Overflow site, we didn’t always follow best practices.
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What I'd like to see in Go 2.0
Go is one of my favorite programming languages, but it is still far from perfect.
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Stack size invisibility in C and the effects on "portability"
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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No one wants simplicity
We think we do, but in fact every web developer will happily sacrifice simplicity to the first shiny thing promising them relief from the mildest of ailments.
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Uv overtakes pip in CI
An opportunity for more opinionated defaults
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Composer: Building a fast frontier model with RL
Composer is our new agent model designed for software engineering intelligence and speed.
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What’s the best lossless image format?
In a blog post last year, I took a look at lossy image formats and how they stack up. This time, I thought it might be interesting to do a comparison of lossless image formats.
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Java 21 VirtualThreads vs. Clojure Lazy Seqs
Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem (feed: RSS ). Thanks to Anton Fonarev for link aggregation.
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Ten Years of TypeScript
Today is TypeScript's birthday! But this birthday is a special one - 10 years ago today, on October 1st, 2012, TypeScript was unveiled publicly for the
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Analyzing multi-gigabyte JSON files locally
I’ve had the pleasure of having had to analyse multi-gigabyte JSON dumps in a project context recently. JSON itself is actually a rather pleasant format to consume, as it’s human-readable and there is a lot of tooling available for it. JQ allows expressing sophisticated processing steps in a single command line, and…
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Your Bash Prompt Needs This
Have you ever had this happen to you? You start a program and then interrupt it with Ctrl-C, and Bash prints its prompt after the ^C you have typed:
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Software Development Waste
I've looked back at the end of every software project I've ever been on and thought, "If I'd known then what I know now, I'd have been done in half the time." Despite this, I've never thought carefully about exactly where all the time went and why so much of it felt wasted.
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Why bugs might feel “impossible”
Reasons why bugs might feel "impossible"