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The most popular blog posts about software engineering on Hacker News. 14,540 posts.
Programming languages new (Java) and old (Fortran), and their compilers, still lack competent support for features of IEEE 754 so painstakingly provided by practically all hardware nowadays. […] Programmers seem unaware that IEEE 754 is a standard for their programming environment, not just for hardware. William Kahan
I’ve been meaning to write up my take on the learn to code movement for quite some time now, but for one reason or another haven’t managed to get around to it. Now that the president is endorsing Computer Science and telling Americans to learn to code, this post has jumped to the top of my priority list.
Inserting and updating data with a single query.
Optimizing a math expression parser for speed and memory.
“A Modest Proposal For Preventing The Children of Rust Developers From Being Exposed To Procedural Macros”
The missing introduction.
NSCopyObject is a very old Foundation function – pre-dating Mac OS X entirely; from the NeXT era – that was originally basically just memcpy , but now it’s complicated. A lot more complicated.
Using Elixir instead of Python or Ruby for shell scripting.
Software development blog of Joe Wright
I’ve been exploring various ways to write parsers. For a long time, I’ve used hand-written recursive descent for its straightforwardness, flexibility, and performance. There is another way—parser generators like Menhir , LALRPOP , or the venerable Bison use the bottom-up LR algorithm .
For a while I’ve wanted to write some personal finance software. Call me crazy, but I can’t find anything currently in existence that allows me to project my earnings and expenses 1 , then summarizes the net effect over a period of time. Basically, I want to be able to propose a budget to myself and simulate how it…
Quick edit: While I work on a proper update, I'll note here that several posters on reddit and hackernews have pointed out ways to bring the total size of the program down to 105 bytes while still printing the full "Hello, world!" Much credit goes to Josh Triplett , who produced the 105-byte version which you can find…
trurl is a tool in a similar spirit of tr but for URLs. Here, tr stands for translate or transpose. trurl is a small command line tool that parses and manipulates URLs, designed to help shell script authors everywhere. URLs are tricky to parse and there are numerous security problems in software because of this. ……
Update (August 11, 2011): Thanks to everyone who offered useful feedback! I uploaded a slightly-revised version, adding a “note of humility” to the introduction, correcting the footnot…
Customize Shell Environment and Appearance
What Ruby’s top-level methods actually are, who they belong to and how they are namespaced
Exploring the math behind hash collisions.
It's that time of year again apparently. Rather than fill in the template for you this time, I'll just give you the general outline of what...
When I wrote the introductory article for libjit , I aimed it at programmers who know what JITs are, at least to some extent. I did mention what a JIT is, but only very briefly. The purpose of this article is to provide a better introductory overview of JITing, with code samples that don't rely on any libraries.
Tony Hoare at the LASER summer school, September 2007 (All photographs in this article are by the author) Had they included just one of Tony Hoare’s major achievements, many scientific careers would be considered prestigious enough. His had a long list, which I am going to try to summarize, not pretending to get…
“An obvious way to deal with embedded interpreters — which someone must have thought of and tried, but I don’t have any pointers — would be to have an API for teaching the fuzzer how to see coverage of the language being interpreted.”
First of a two-part series on the best strategies for hiring humans in the 21st century. Fueled by both personal experience and the experience of countless mentors (and recruiters), this gigantic post is bursting at the seams with knowledge. Though specifically written by a CTO-type, the strategies are useful for…
In a recent pentesting assignment, there was a service which converted uploaded files to PDF/A format, to make them safer for handling. Afte...
I was recently encouraged to watch A Practical Guide to Applying Data Oriented Design (DoD) by Andrew Kelley, the creator of Zig1. Just 10 minutes into the talk, I was confronted with a skill I had never formally learned… the arithmetic behind memory layout of types. Zig is a modern, C-like programming language which…
