# All Questions

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### Swiftly turning wheels – The May 2017 Community Challenge

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 ...
981 views

### Making a generic NSMapTable replacement written in Swift thread-safe

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 ...
605 views

### Definitional Returns. Solved. Mostly

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 ...
340 views

### Pacman implemented in OOP VBA

What?, Why? I have been inspired by several other posts on the topic of OOP implementations in VBA to try and create a Pacman clone. I think this task is not all that hard in most languages; but, I ...
3k views

### CMake Project Template for a General Cross Platform C++14 Project

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 ...
276 views

### Rubik's cube mode for emacs

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. ...
318 views

### Mucheck - a mutation analysis tool for Haskell programs

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, ...
305 views

### Multiplying big numbers using Karatsuba's method

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 (...
1k views

### Repository pattern in Rust

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 ...
166 views

### Timeoutable computations module

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 ...
276 views

### Water flowing swiftly over farmland – The August 2016 Community Challenge

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 ...
334 views

### Modularizing a Game Scene in Sprite Kit

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. ...
418 views

### Shepard Tone stream generation in Clojure

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 ...
1k views

### PowerShell module for formatting objects using Razor

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 ...
283 views

### Ruby chess engine gem

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 ...
204 views

### Tracking the bounding box of a map

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

### Autotools detect C++ language standard support

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 ...
170 views

### Encoding the problem domain of products and prices into the typesystem in F#

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 ...
143 views

4k views

### How to stream data directly from the database through a 3 tier architecture

The problem: generating a CSV file that is too large be stored in memory in a 3 tier architecture, without the complexity of saving the file to storage. The solution: I've managed to write something ...
431 views

### Document formatting markup engine in Postscript

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 ...
547 views

### Binary Search Tree Monad Implementation

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 ...
880 views

### Django on virtual machine - watching changes in static files and autocompiling LESS without inotify

I'm setting up a Django development environment using Vagrant to run an Ubuntu virtual machine on VirtualBox. As this is a student project run mostly by very amateur coders and I want everyone to be ...
2k views

### Asynchronous serial port communications class in C++

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 ...
402 views

### BattleShip - Ships & Players

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 <...
1k views

### Realtime concurrent Haskell MIDI buffer

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 ...
1k views

I have developed a threadpool using the standard c++11 features and am looking for feedback. Right now I think the implementation is pretty solid, but as I recently learned about multithreading I'm ...
199 views

### Multi-function memoizator and multi-type container

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,...
262 views

### Code to fill PE import address table

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 ...
170 views

### Parser for a custom scene definition format for a raytracer

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 ...
153 views

### Creating an istream peeker

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 ...
175 views

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 ...
412 views

### Idiomatic way to implement tail -f in clojure

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 ...
192 views

### Host-Agnostic Model-View-ViewModel Infrastructure

I've written an API that unlocks some serious MVVM capabilities with VBA's MSForms UI framework. This is the complete code-behind for an example ...
164 views

### Generated Minecraft stone texture in R

I needed a Minecraft-like stone texture, instead of creating it using image editing software I decided to generate one using R. The idea is to create some noise and stretch it horizontally so the ...
117 views

### Resizable containers with VueJS

Some time ago I reviewed the code in Resizable split DIVs Vue.js, suggesting that the OP use computed properties and bound styles to simplify the code (at least reducing the need to use ...
3k views

### Sending notifications with Django channels

I have project on Django wich use Django Channels. I use Django Channel for sending notifications to users who are subscribed to articles changes (adding/editing/deleting comments on article). So I'...
707 views

### Let's register that Django user

Short intro So, I've been using Django for a while now and thought it would be nice to start a simple application. In an ideal World, each app must have a way of letting its users register and that's ...
662 views

### A polymorphic callable wrapper for any callable

I recently answered a question that had an interesting problem statement (I've slightly modified the wording): I have an abstract class A which is base for the ...
2k views

### Function to conect to Firebase Rest API via Access VBA

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. ...
3k views

### Socket application using TPL

This is an application I wrote that allows multiple TCP clients to share a single TCP connection to a remote server (hosted project, and a demo). Traffic generated by the server is forwarded to all ...
189 views
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### How Rusty is my generic union-find implementation?

I decided to implement a DisjointSet<T> data structure myself in Rust, with no dependencies except for std, for the ...
385 views

### Geode Contents Predictor StardewValley Mod

The goal I really enjoy the game Stardew Valley. One of the things that the game has are geodes. Much like real-world geodes, these geodes can be cracked open, and you can find some fun things inside....
157 views

### Console arkanoid in C

On an Internet forum a person came with their homework, to write Arkanoid in a console - it seemed they wanted someone to do their homework for them so I did not respond. However, I found the task ...
276 views

### CSS image slider (no JavaScript)

HTML / CSS Slider. No JavaScript. Wanted to make an all CSS Image Slider. Though there are plenty of pre-made options setup a lot seem clunky or add a lot to load time. Have ideas for some more ...
298 views

### C++ library to compile-time merge sets to a single array

I built this small library to create a compile-time assembled array from several hard-coded sequences (of unequal length) of a type T: ...
3k views

### Angular 5 Forms - Extending Form Control

I am taking a first pass at Angular Forms with some colleagues and noticed an interesting design pattern implemented by a coworker where the FormControl is being ...
1k views

I've been into trying to have an as simple as possible dependency container in Python and with your help managed to conceive TinyDIC, many thanks. Now, I use Flask for my apps, and from by background ...