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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 ...
HostileFork says dont trust SE's user avatar
29 votes
0 answers
1k 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 ...
ArcherBird's user avatar
24 votes
0 answers
424 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. ...
Srv19's user avatar
  • 455
23 votes
0 answers
612 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 (...
Sep Roland's user avatar
  • 4,448
23 votes
0 answers
399 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, ...
Rahul Gopinath's user avatar
20 votes
0 answers
5k 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 ...
James Law's user avatar
  • 497
19 votes
0 answers
1k 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 (...
Cristian Buse's user avatar
19 votes
0 answers
192 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 ...
Lucian Carata's user avatar
18 votes
0 answers
378 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. ...
bazola's user avatar
  • 8,569
18 votes
0 answers
477 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 ...
Dan Midwood's user avatar
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 ...
Danny Tuppeny's user avatar
17 votes
0 answers
1k 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 ...
Martin York's user avatar
  • 95.2k
16 votes
0 answers
858 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 ...
Grajdeanu Alex's user avatar
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 ...
user1441998's user avatar
16 votes
0 answers
194 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 ...
Morten Christiansen's user avatar
15 votes
0 answers
247 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 ...
Winston Ewert's user avatar
14 votes
0 answers
574 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 <...
Mathieu Guindon's user avatar
14 votes
0 answers
960 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 ...
Waiski's user avatar
  • 378
13 votes
0 answers
330 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 ...
Douglas's user avatar
  • 859
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 ...
KFL's user avatar
  • 231
12 votes
0 answers
201 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 ...
Justin's user avatar
  • 3,295
12 votes
0 answers
454 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 ...
zerkms's user avatar
  • 389
11 votes
0 answers
353 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 ...
Mathieu Guindon's user avatar
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'...
KIN1991's user avatar
  • 211
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. ...
Adarsh's user avatar
  • 259
10 votes
0 answers
1k 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 ...
Cristian Buse's user avatar
10 votes
0 answers
2k 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....
Dan Oberlam's user avatar
  • 7,804
10 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 ...
Nick Pandolfi's user avatar
10 votes
0 answers
725 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 ...
Rick Davin's user avatar
  • 6,350
9 votes
0 answers
1k views

Tree for PowerShell

For anyone reading this old question, this module has evolved and improved a lot since then. It has been fully rewritten in C# and uploaded to the PowerShell Gallery! If you would like to try it out: <...
Santiago Squarzon's user avatar
9 votes
0 answers
555 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 ...
Sandro4912's user avatar
  • 3,076
9 votes
1 answer
1k views

Function that recursively downloads entire directory is slow

I created this function to recursively copy an entire directory from an FTP server. It works just fine except that it is about 4 times slower than using FileZilla to do the same operation. It takes ...
Programmer's user avatar
8 votes
0 answers
740 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 ...
vbAdder's user avatar
  • 181
8 votes
0 answers
1k 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 ...
tai's user avatar
  • 181
8 votes
0 answers
401 views

Implementing GSL synchronized_value

Core Guidelines mention a type synchronized_value<T>, which supposedly pairs std::mutex with the internal value. I couldn'...
Sergey Kolesnik's user avatar
8 votes
0 answers
153 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 ...
lrnv's user avatar
  • 195
8 votes
0 answers
396 views

Engineering an even faster qsort

I understand that C++ STL template sort runs faster than qsort in C because ...
Neil's user avatar
  • 1,050
8 votes
0 answers
4k 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 ...
TinMan's user avatar
  • 4,133
8 votes
0 answers
792 views

Battleship MVC Architecture

The entry point is the Macros module, which - for now - includes only a single procedure, at a very high abstraction level - I'm quite happy with this: ...
Mathieu Guindon's user avatar
8 votes
0 answers
1k views

IndexedArray Class: Uses a Dictionary Keys to Index a 2 Dimensional Array of Values

This class encapsulates a 2D Array and a Scripting Dictionary. Values are add or returned from to the Array using a Key and a ColumnIndex, e.g. ...
TinMan's user avatar
  • 4,133
8 votes
0 answers
3k views

Bringing The System.Text.StringBuilder Up To Lightning Speed In The VBA

After having to swap the feature rich System.Text.StringBuilder for the very fast but very vanilla A lightning-fast StringBuilder, I decided it was time create a ...
TinMan's user avatar
  • 4,133
8 votes
0 answers
2k views

Small Virtual Machine executing its own byte-code

I want present to you my little Virtual Machine. It nothing really sophisticated. It is an stack only virtual machine with the exception for some 'global' variables which i would count as registers ...
ExOfDe's user avatar
  • 553
8 votes
0 answers
565 views

Simple, intuitive and (hopefully) safe EventDispatcher

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 (...
Tim Diekmann's user avatar
8 votes
0 answers
385 views

C++ constexpr trampoline

For fun, I implemented a trampoline function for C++ constexpr functions, since the recursion limit for constexpr functions is ...
Justin's user avatar
  • 3,295
8 votes
0 answers
352 views

STTCL FSM framework based on the GoF State Pattern, Part I: The basic interfaces

Preface I have decided to let my pet project created some years ago to undergo a code review here. The review will be broken into parts according to meta question Multiple reviews or one big review?...
πάντα ῥεῖ's user avatar
8 votes
0 answers
572 views

Kattis problem Amanda Lounges

I wrote this solution to Kattis problem Amanda Lounges in Scala. TL;DR: It's a graph theory problem where I read in a list of edges from stdin and try to compute the minimum number of nodes that ...
Brian McCutchon's user avatar
8 votes
0 answers
356 views

.NET DLL Injector in C++

I built a DLL Injector with User-Interface. The program lists all processes, the user chooses one of them and a DLL, and inject it. It's my first project in C++, and I know it's not exactly C++ ...
Gil Mans's user avatar
8 votes
0 answers
7k views

I am using boost::process to call an external process, and using stdout, stderr, and stdin to supply/retrieve data

I have some program which takes input via stdin, writes output to stdout, and errors to stderr. I would like to call that program from another program, supplying data via stdin, and capturing output/...
DaveM's user avatar
  • 81
8 votes
0 answers
333 views

In emacs markdown-mode making the link live and URL invisible in inline links

A few years ago I modified version 1.8.1 of Jason Blevins's markdown-mode for Emacs so that when showing inline links the URL is hidden, and so that you can follow the link simply by hitting Enter. If ...
kuzzooroo's user avatar
  • 369
8 votes
0 answers
173 views

Implementing Simple Diff in Rebol

I've taken a crack at implementing Simple Diff in Rebol (versions 2 and 3). Simple Diff works by finding the longest common sequence in two series, then recursively applies itself either side of this ...
rgchris's user avatar
  • 489

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