All Questions

This is my attempt at the May 2017 Community Challenge in Swift, with a chain consisting of rigid links. I took this as an opportunity to learn SpriteKit, Apple's framework for 2D games. At least ...

Just joking guys, Brainfuck is an awesome, challenging language. I've tested the following code with bf-x86 compiler and rather big JSON file. I believe code is fully functional on a valid (!) JSON ...

This is a follow-up to this question. While discussing some details about the code I posted there, I came upon a problem with thread-safety. After searching and trying different things, I reached a ...

I have made the bold claim that a longstanding problem in Rebol is "now solved"...that of "definitional returns". But of course, such claims need some peer review, and there's always some new trick ...

UPDATE: I am no longer updating this post with the contents of my actual project since they have changed significantly (Unit testing is now done with doctest, code coverage is included, etc.). This ...

We have been working on a mutation analysis tool for Haskell tests called MuCheck. It accepts any Haskell source file, and a function name to mutate, applies a defined set of mutation operators on it, ...

Following is a dumb implementation of Rubik's cube for Emacs. I am not well versed in writing (e)lisp, so I ask for a review and corrections. ...

Slightly inspired by a previous question/april fools joke I decided to take on Fibonnaci sequence in the lovely language Brainfuck. In order to do this I have also worked on Brainduck, which is a ...

I have a model Collection which has a many to many relation to a model Item. I want to be able to add or remove items to this collection using Django Rest Framework. Option1 - make an action: ...

Defines a simple module for timeoutable computations, with the ability to return arbitrary intermediary results on timeout or the final value otherwise. It also allows default return values. The ...

This is my attempt to solve the August 2016 Community Challenge in Swift. I tried to implement the algorithm described by @200_success: Each Cell keeps track ...

I am trying to modularize the main SKScene of my strategy game. I am not sure that my approach is correct so I would love to get a review of the following code. ...

This is my work to generate an infinite Shepard Tone. It is written in Clojure and works by generating repeating streams of incrementing frequencies, converting those to values on a sine wave and then ...

I managed to get something up and running, but I've no idea whether there are better ways to do this. I've spent all morning trying to figure out the best way to use parameters (allowing objects from ...

The Karatsuba algorithm, first published in 1962, aims to speed up the multiplication of big numbers by reducing the number of 'single-digit-multiplications' involved. Because of its complexity (...

I have implemented an algorithm which converts a signed integer to its ASCII equivalent string with the corresponding sign as a first byte. I have tested it on several numbers and it worked correctly. ...

I'm looking to add a thin layer of abstraction for database interaction in my application. I'm not really looking for a full blown ORM or advanced query builder. I am familiar with Diesel, but its ...

Context I have a bunch of data points that look roughly like this: ...

I have been updating my build tools to optionally use autotools (autoconfig/automake/libtool etc.). As part of this change I have written a couple of M4 macros. This not being something I have done ...

"This is {0} cool!", "freaking" I've always wanted an easy and intuitive way to inject variables into a string. So after about 10 variations, I finally came up with this function. How it works The ...

This is my first Ruby gem that claims to provide all the rules of the chess game. My goal was to keep this library as simple as possible via OOP principles, and I'd be glad to hear any feedback from ...

Inverse transform sampling is a method to generate random values that follow an arbitrary distribution. For some reason this method was never implemented in any popular scientific libraries. And as I ...

I'm trying to design a model for purchasing amounts of products in F#, following the ideas for designing for correctness (source). The idea is to use the type system to capture the different legal ...

I've written a Binary Search Tree Monad in Scala. I would like to hear your thoughts on how to improve it (e.g. making insertion/deletion/search faster and more scalable). Also, is there a better way ...

I have a PR implementing Ooura and Mori's method for continuous Fourier integrals. I used it here to compute an oscillatory integral that Mathematica got completely wrong, and then I thought "well ...

This module has a ensure_downloaded function which takes a slice of Urls. It downloads all of the urls to a local downloads ...

The background is the question at https://stackoverflow.com/questions/36634394/nested-shared-ptr-destruction-causes-stack-overflow. To summarize, for a data structure that looks like: ...

I've been rewriting this same sort of thing off and on over the years, but finally here's the "perfected" monstrosity. Some kruft in the middle with attempting to predict the number of spaces that ...

Windows keylogger in C++ Known issues: Not implementing rule of five Having to use hack to use member variables, out_, in static method Pressing caps-lock won't ...

Please review my serial port class written in C++. It is completely asynchronous, ie event driven. My idea for later is to inherit from this a sync_serial, where timeouts can be specified and it ...

I'm making a full-blown OOP Battleship game in VBA (previous post: Battleship Grid), and I want this code to be as good as it gets - and better, if I can. I've refactored a few things, introduced a <...

Problem Background MIDI is a serial representation of control signals to a sound generator. Typically, a noteOn message initiates the attack phase of a sound at a given pitch. The note will ...

I wrote a program to test AV engines against encryption. When it runs, it will compute some key, decrypt an executable it has in its data section and copy it to the locations where the executable ...

I'm trying to write a multiple functions memoizator, which I've talked about here. The main problem is creating a container containing different and heterogenous functions. I found a working solution,...

Seeing as it's October, I thought I'd do the community challenge. Due to my inexperience coding in Groovy, I decided to give Groovy a go. I'm not sure how well I followed Groovy conventions, and the ...

As nobody has provided input, I have updated the question. (The next one is coming soon) Coding to this interface: ...

I'm trying to refactor some code for fitting parametric models that are defined symbolically using Theano. My goal is for all models to expose a common interface so that, as far as possible, they can ...

This is the application for small school, which will store students' info in Firebase and also retrieve data from Firebase. I am using JSON Parser to parse the data and save the same in Access tables. ...

For a raytracer I’ve been writing with a classmate, we use a custom scene definition format that allows specifying shapes, composite shapes, materials, lights, cameras and transform and render ...

I want an istream that you can safely peek arbitrarily many characters from. This works as far as I can tell, but I am unsure if this is really "the right way" to ...

I'm trying to do a Bilinear interpolation on the ARM Neon. However, I find that my vectorized code is slower than the regular one, on a BeagleBone Black. Any idea why this could happen? I'm using ...

Disclaimer: This is just an educational task to learn how to program in clojure and switch brain to immutable state-way of developing (the provided snipped has some unused variables which I didn't ...

I realised that what I was doing wasn't particularly smart, so I switched to a different approach. This costs more dynamic allocations but has a much simpler implementation: ...

Note: This is part of a set of demo applications I'm writing for colleagues to show we're not limited to VBA when dealing with Excel. Considering our IT challenges (no admin on-site & no local-...

Prompted by discussion about SQL injection, I wanted to put a proof of concept forward to get feedback about whether this is in fact safe and protected against SQL injection or other malicious use. ...

This question is the follow-up to this previous question. Background Using this simulation I investigate a system in which enzymes proliferate in cells. During the replications of enzymes, ...

I did wrote this parallel merge sort with no external dependencies. I tried to make use of modern C++ as much as possible. Can you please tell me how it is? ...

I am a hobbyist computer programmer trying to learn modern C++ (in this case C++17). I thought it might be an interesting challenge to write a Binary Search Tree similar to ...

I have the function which builds and return Slack message with text and attachments. How can I refactor this function to make it ...

For my own game engine I need an event system. I tried to avoid the single-huge-enum-approach for minimizing compile times. The BasicEventListener is the (...