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The programming error that cost Mt. Gox 2609 Bitcoins
In October 2011, Mt Gox lost over 2609 bitcoins by accidentally creating transactions that can never be redeemed. (At the time, 2609 bitcoin...
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The latest blog posts to take off on Hacker News. 14,544 posts.
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New partition function record: p(10^20) computed
The partition function p ( n ) counts the number of partitions of n , i.e. the number of ways n can be written as a sum of positive integers when disregarding the order of the terms. For example, 4 has the five distinct partitions 4, 3+1, 2+2, 2+1+1, 1+1+1+1, so p (4) = 5. This week, I set a new record by computing…
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Laying Out iOS UIs in Code
Software Engineer in New York specializing in Apple platforms
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Why Can’t Programmers... Program?
I was incredulous when I read this observation from Reginald Braithwaite: Like me, the author is having trouble with the fact that 199 out of 200 applicants for every programming job can’t write code at all. I repeat: they can’t write any code whatsoever. The author he’s
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Ten Years of Coding Horror
In 2007, I was offered $120,000 to buy this blog outright. I was sorely tempted, because that’s a lot of money. I had to think about it for a week. Ultimately I decided that my blog was an integral part of who I was, and who I eventually
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In Praise of Perl 5
I have decided to do a two-part series here praising Perl in part 1 and PostgreSQL in part 2. I expect that PostgreSQL folks will get a l...
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C++17: I See a Monad in Your Future
[If you prefer, you may watch the video of my talk on this topic (here are the slides).] If you thought you were safe from functional programming in your cozy C++ niche, think again! First the lamb…
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How I Judge the Quality of Documentation
As a developer, you develop instincts for judging quality of code. One of my favorite interview questions is: When you look at a project’s code for the first time, what are the things you look for?...
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The Emacs Problem (2005)
The Emacs Problem Stevey's Drunken Blog Rants™ Charles G. pointed out in an email discussion recently: Lisp still doesn't seem like the right language for doing text manipulation, and nothing I've seen from the Emacs libraries is making me think any differently. It sure beats the hell out of Java
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To close or not to close – Void HTML elements
A blog about web and frontend development, design, 3d and music — by Mat Simon.
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Overkilling the 8-queens Problem
Last night, a fellow Hacker Schooler challenged me to a running-time contest on the classic eight queens puzzle. Naturally, I pulled up my trusty …
12016
Starting to Demo the Wolfram Language [video]
Stephen Wolfram introduces the Wolfram Language, with overview and demonstrations, in a video showing the power of this symbolic programming language.
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Announcing the new Roslyn-powered .NET Framework Reference Source
In 2007 ScottGu's team announced they were releasing the .NET Framework source ...
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Results of the SQL Performance Quiz
SQL indexing: 60% don’t know how to get it right
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Making ActiveRecord 2x faster
TL;DR: AdequateRecord is a set of patches that adds cache stuff to make ActiveRecord 2x faster
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As much Stack Overflow as possible in 4096 bytes
Fitting as much Stack Overflow as possible into 4096 bytes
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No more `grunt watch` – faster builds with the Broccoli asset pipeline
Broccoli is an asset pipeline for building JS+CSS apps running in the browser. Read about the architecture, and how it compares to other build tools.
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A Case for Upserts
Some thoughts on why upserts are necessary to write reliable web applications.
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Cryptic Crossword: Amateur Crypto and Reverse Engineering
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…