Newest Questions
77,604 questions
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Maze game from book Design Patterns with smart pointers and polymorphism
The Design Patterns book chapter 3 about Creational Patterns starts with a maze game. They use the maze as an example throughout the chapter and instead of rooms they have also things like enchanted ...
- 133
3
votes
3
answers
146
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Infinite precision integer in C++20
This is my infinite precision integer implemented in C++20. It supports negative numbers. I have implemented addition, subtraction, multiplication and binary integer division, which returns quotient ...
- 3,498
-1
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0
answers
22
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Python Simple ECS Implementation [closed]
I have developed a very simple Python ECS implementation as a module, and would love some feedback on the code.
GitHub repository is here
The module is designed to be as beginner-friendly and as ...
- 1
3
votes
0
answers
18
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Timer coroutine
I was trying to learn more about C++ 20 coroutines. After trying to read the documentation and watching few videos, I tried to write a timer that uses coroutines.
...
- 455
1
vote
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49
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Image preview and delete for Laravel blog application
I am working on a blogging application in Laravel 8.
I have put togheter a way to preview and remove the main article image.
In the ArticleController.php controller,...
- 587
0
votes
0
answers
66
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Code to compare the performance of direct calls to outsourcing functions into libraries shows libraries slow
after resolving two more general issues in an attempt to build code using a library I'm left with three specific and one general question about the use of libraries and performance in simple "...
- 341
2
votes
1
answer
37
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MATLAB Gait Analysis Script
Could someone kindly help me review and fix any errors or inefficiencies in this MATLAB script? I’m trying to make sure it’s clean, robust, and optimized.
Brief description of what the code does:
This ...
- 29
-3
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0
answers
44
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Bitboard to FEN (Chess) [closed]
I'm writing a bitboard to FEN parser for a game of chess. So far I haven't implemented 'active colour', 'castling', 'en passant', 'halfmove' and 'fullmove'.
I have a function that, given a bitboard, ...
- 95
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37
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Mismatch Between Frequency Response and Eigenvalue-Based Natural Frequency in MATLAB for a 5-DOF System with Frequency-Dependent Stiffness
I am working with a mechanical system that has five degrees of freedom (a composite plate), and I am trying to compute its frequency response, time-domain response, and natural frequencies.
I have ...
- 109
2
votes
1
answer
49
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Hourly display new CppQuiz.org questions on an ESP32-powered e-ink screen
I wanted to develop something to put on my desk. It is not more than hobby project but it pushes me to keep learning new things. I'm looking for decent code review for four files.
Here is github link ...
- 141
3
votes
1
answer
46
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More shortest unrestricted paths to touch every square in an n by n grid
This is a part two.
The problem originates from here,
it is solved for \$n<11\$. A GitHub repository for this code, printing paths, and a collection of all proven best paths, it is open to ...
- 203
-4
votes
0
answers
109
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Direct calls of simple functions, e.g. set a variable to NaN or INF, become slow once the program uses libraries, [solved], needed a "-O2" [closed]
Sorry, withdrawn, cross posting to gcc bug tracker helped ( was necessary? ) to clear my head and narrow down the problem between working and not working. I had copied the library compile command from ...
- 341
9
votes
3
answers
2k
views
Solver for Wordle puzzle
After a success with the Jumble puzzle solver, I am doing a Wordle puzzle solver. I know many other Wordle solvers have been posted, yet this is my original version, which emphasizes list ...
- 337
2
votes
0
answers
21
views
Plugin to enforce individual-use coupon validation in WooCommerce admin
I'm working on a custom WordPress plugin that ensures individual-use WooCommerce coupons are properly validated when applied via the admin order editor.
By default, WooCommerce only enforces this ...
- 53
5
votes
0
answers
42
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Excel Bookkeeping Application, Create Ledgers from Chart of Accounts and Journal
I am writing an Excel bookkeeping application that would be suitable for a small business or contractor. The application is based on a book on double entry bookkeeping:
https://www.amazon.co.uk/gp/...
- 2,509
2
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0
answers
69
views
+100
Is this RenderObject implementation following the correct rendering algorithm and intended uses?
I'm trying to see if this RenderObject is well implemented or if it's doing something bad with respect to Flutter rendering algorithm, especially:
Is it ok to call ...
-3
votes
0
answers
76
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Typesafe Java serialization and deserialization of records in one Java 21 source file [closed]
I have implemented in a single Java source file type safe serialization and deserialization of JDK 21 record types and sealed interfaces that only take those types. ...
- 318
2
votes
0
answers
43
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Basic Rust server + client to handle future game logic
I made a really basic server and client in Rust using tokio for the server.
I would like to receive feedback on the (very limited) code I have so far, just to make sure I'm on track to follow Rust's ...
- 21
4
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0
answers
78
views
3
votes
1
answer
61
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Implement a matrix and access its elements
I have just started to learn how to program in Scheme using the LispPad app on my iPad. I want to know if the following is the best way to implement a matrix and access its elements.
This code ...
4
votes
3
answers
140
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Sieve of Eratosthenes with Wheel Factorization in C++ version 2
I have implemented Sieve of Eratosthenes with Wheel Factorization in C++ again, this time using a bigger wheel and much more complicated C++ syntax, to familiarize myself with C++ and see how fast I ...
- 3,498
3
votes
1
answer
40
views
3
votes
1
answer
57
views
A function that returns correct number of inserted, updated and skipped rows for INSERT or UPDATE query
When MySQL executes a Data Modification Query, it provides some additional info on the outcome, which is usually displayed in the console. This info is also being exposed through MySQL C API and this ...
- 8,996
3
votes
1
answer
39
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DioClient using Clean Architecture following SOLID Principle
I am trying to write an API Client in flutter that follows Clean Architecture, SOLID principle and best programming practices
After completing this, I am going to use it in Repository or DataSource. ...
- 203
3
votes
1
answer
152
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HTML Editor: Online HTML Editor with Real-Time Preview (version 6)
Overview
HTML Editor is a web-based HTML editor designed for web developers, designers, and learners. It offers a lightweight, minimalist environment for writing and previewing HTML, CSS, and ...
- 197
0
votes
0
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57
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Element-wise natural logarithm of large array
Let X be a numpy.array of np.float32 with shape (100,100,100,100). I'm computing the variable lX with the following formula
<...
- 121
5
votes
3
answers
1k
views
Slow SQL query with nested subquery
I have written the below query in order to identify how many events (occur over a week) in each hour.
...
- 403
3
votes
2
answers
71
views
Simple WinAPI Event manager implementation
Trying to learn windows internals and made my first work with Events and Threads. What do you think about my code? Any advice?
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- 303
3
votes
2
answers
734
views
Retrieval-Augmented Generation from text files
Context: I'm a complete newbie trying to get good at structuring my code. I'm aware that I'm supposed to do my own research with docs, but I don't know what specific docs I should be reading for this ...
- 41
3
votes
1
answer
212
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Solution to the N Queens Puzzle in the PicoBlaze assembly language
You can see it live here:
...
- 585