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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 ...
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29 votes
0 answers
676 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 ...
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26 votes
0 answers
661 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 ...
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24 votes
0 answers
352 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. ...
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24 votes
0 answers
3k 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 ...
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  • 561
23 votes
0 answers
368 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, ...
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22 votes
0 answers
429 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 (...
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19 votes
0 answers
309 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 ...
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19 votes
0 answers
185 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 ...
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18 votes
0 answers
255 views

Progress Bar for Excel

Any future updates can be found at Excel-VBA-ProgressBar What I've been using so far For the last 6 years I've been using a progress form which I wrote in VBA using just Windows API calls. The code (...
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18 votes
0 answers
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 ...
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  • 447
18 votes
0 answers
352 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. ...
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18 votes
0 answers
437 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 ...
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18 votes
0 answers
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 ...
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17 votes
0 answers
871 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 ...
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16 votes
0 answers
3k 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 ...
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16 votes
0 answers
183 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 ...
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15 votes
0 answers
373 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 ...
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15 votes
0 answers
179 views

Download files in parallel

This module has a ensure_downloaded function which takes a slice of Urls. It downloads all of the urls to a local downloads ...
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14 votes
0 answers
478 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 <...
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14 votes
0 answers
1k views

C++11 Threadpool

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 ...
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  • 335
14 votes
0 answers
926 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 ...
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  • 378
13 votes
0 answers
776 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 ...
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13 votes
0 answers
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 ...
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  • 231
12 votes
0 answers
303 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 ...
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  • 849
12 votes
0 answers
1k views

Flask view dependency injection

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 ...
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12 votes
0 answers
192 views

Multithreaded Groovy Mandelbrot

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 ...
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  • 3,245
12 votes
0 answers
444 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 ...
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  • 389
11 votes
0 answers
221 views

Low Level VBA Hacking - making Private functions Public

NEW: Download demo files Not sure what to title this - essentially, inspired by RubberDuck's unit test engine, I've created a way to call private methods of standard modules in VBA. It also lets you ...
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  • 2,050
11 votes
0 answers
310 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 ...
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11 votes
0 answers
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'...
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  • 211
11 votes
0 answers
774 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 ...
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  • 3,473
11 votes
0 answers
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. ...
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  • 249
11 votes
0 answers
182 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 ...
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  • 3,659
10 votes
0 answers
935 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....
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  • 7,673
10 votes
0 answers
231 views

Nested cross-origin iframes for secure user-configurable javascript tools

Context I'm trying to build a system in which a tool (the Client) will generate a header to be used as part of an HTTP request from the user's browser. The user should be able to choose their own ...
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10 votes
0 answers
468 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 ...
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  • 461
10 votes
0 answers
591 views

IPv6 parsing in rust

Here is code to parse an IPv6 address. An IPv6 address is 128 bits long. When represented in its printable form, its hextets (1 hextet == 16 bits) are represented as hexadecimal numbers, and are ...
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10 votes
0 answers
401 views

C++ Parsing with chain of responsibility

The task was to create the parser for the string input, that would return the std::vector< int > of parsed numeric results and the type of given input (e.g. numbers, division by zero error, out of ...
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9 votes
0 answers
756 views

Private VBA Class Initializer called from Factory #2

About This is a follow-up of a previous question Private VBA Class Initializer called from Factory. I've decided to create a new question instead of answering my old question because I would like the ...
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9 votes
2 answers
217 views

A Server and Client Chatroom Using Sockets and Threading

I made a chatroom with a server and client python files, using Sockets and Threading as a project. I'm interested to acquire ...
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9 votes
0 answers
459 views

Hunt the Wumpus GUI (FLTK)

I used the code from the text based hunt the wumpus game discussed here: Text based game “Hunt the Wumpus” Version 3 to create a gui Version based on excercises from PPP by Stroustrup. For the GUI i ...
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9 votes
0 answers
1k views

Cyther: The Cross Platform Cython/Python Compiler (Take 2)

I recently posted an earlier version of this code on Code Review, and now with the given suggestions and many other improvements, I am back. I included the description of exactly what Cyther is ...
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9 votes
0 answers
626 views

Sieve32FastV2 - A fast parallel Sieve of Eratosthenes

I’ve created a much cleaner, better designed version to my parallel sieve. I’ve implemented most of EBrown’s micro-optimizations but also revamped the code on my own (that is not in direct response ...
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  • 5,572
8 votes
0 answers
109 views

A VBA program to quantify the performance of code execution timers

Motivation I am interested in optimising the execution time of code with short (fast) execution times on the order of microseconds (µs), but that will be used with high frequency (e.g. like ...
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  • 181
8 votes
1 answer
125 views

Structuring of my tkinter music player program

This music player app hasn't really completed yet but it runs the basic functions of a music player, which include play/pause, volume adjustment, next/prev, shuffle and repeat functionalities. However,...
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8 votes
0 answers
248 views

A simple Qt + MQTT doorbell application

So I built a house recently and didn't want to rely on "privacy-questionnable" systems like Google Home or Amazon whatever so I decided to build a doorbell system myself. Hardware I use a ...
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  • 181
8 votes
0 answers
182 views

React Typescript Boilerplate

I'm trying to build a React Boilerplate Using multiple tools. They are all: React, TypeScript, ESLint, Webpack, Babel, Prettier, VSCode and with Airbnb's code style guide. Actually, this is my first ...
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8 votes
0 answers
129 views

Calculation of independence test statistic

This code (~30lines) detects independence between variables in a dataset, by using a bootstrap of a statistic. This is fully-broadcasted, but it's still long. Reading it, or making it run, do you ...
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  • 195
8 votes
0 answers
3k views

Responding to Events of Dynamically added Controls

I was asked for an example of a class to wrap dynamically added controls as I suggested in this Answer. Although it is out of the context of a Code Review, I thought that it would make an interesting ...
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