Every blog post that took off on Hacker News, ranked by the votes of its best submission. 14,545 posts.
Why is my first C++ (m)allocation always 72 KB?? It’s the ’emergency pool’ for exceptions, here’s how I uncovered it using GDB and digging through the source code of libstdc++, glibc and Valgrind!
From the finding of the diagram’s goal and audience to review checklist
Last month, April 2022, marked the 10 year anniversary of my start as a professional programmer.
So you think your favourite FOSS project is moving too fast? Easy, just DOS the developers. Here's a few tips on how to achieve this: On IR...
Left: Original image. Center: Blurred through convolution. Right: Deconvolution of the blurred image. In this post, we’ll have a look at the idea of removing blur from images, videos, or games thro…
Claim: as specified, the UTS #35 transliteration-rule language is Turing-complete. This is an exception in Unicode, where algorithms are deliberately bounded and always terminate. The specification defines a revisiting cursor with no rewrite limit. ICU's implementation implements a per-call cap, but the spec itself…
focus • maintain a detailed plan for victory • run a fast OODA loop • overcommunicate • break off subprojects • have fun • bonus content: my project management starter kit
How to work with multiple processes in Elixir
Lambdaclass's blog about distributed systems, machine learning, compilers, operating systems, security and cryptography.
git , Single page HTML , Kindle .mobi , PDF , .epub , HTML for printing , book cover .
In “ How I Learned to Stop Worrying and ❤️ the State Machine ,” we built an extremely basic state machine to model a bank account.
About a month ago, I found a bad-behavior bug in the tokenize standard library module, and with help from Aron Griffis, submitted a patch to fix it. Yesterday was a Python bug day, and Ezio Melotti merged my change, so I have officially contributed to CPython!
A walk through of building an image that displays its own MD5 Hash
After Yahoo! acquired Summly and Google acquired Wavii, there is no doubt that auto summarization technologies are a hot topic in the industry. So as a NLP freak, I decided to give a quick overvie…
In the world of physics, there are many different models that can be used, though typically each of them has different applicability to different contexts. At the small scale, quantum physics is a very useful model, Newtonian physics will yield evidently incorrect predictions so is less valuable. Where a Newtonian…
Great things and people that I discovered, learned, read, met, etc. in 2011. No particular ordering is implied. Not everything is new.
This is yet another string search algorithm. (Previously my readers have read about Knuth-Morris-Pratt .)
This is the first post in a series about JIT compilers. The plan is to take a simple input language and develop some interpreters and JITs for it, in roughtly increasing degree of complexity. It's my hope that by the end of the series readers will have a good understanding of what it takes to develop a JIT compiler…
Binary search is a workhorse of competitive programming. There are occasional easy problems where binary search is the solution in and of itself; more often, it’s used as a primitive building block…
Reverse engineering is a special subgenre of computer programming. It's about the closest that I as a programmer get to being a scientist. Gather data, formulate a hypothesis, test, refine, repeat: reverse engineering is basically applying the scientific method to a very, very small knowledge domain. If you've never…
Suppose we want to draw a batch of images, where each image is made up of randomly positioned and colored triangles, that are blending. It will look like this:
Communicating Sequential Processes and Python coroutines as a structured approach to concurrency.
