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When doing something simple such as this int a=1; int b=2; int c=3; printf("%d\n", a + b * c); then I was told that operator precedence guarantees that the code is equivalent to a + (b * c)...
Inspired by https://meta.stackoverflow.com/questions/432242, and the relevant main-space questions. I have heard that C and C++ something called the "strict aliasing rule", which means for exa...
Title: Unable to Login with Flask-WTF and Flask-Login Description: I'm building a Flask application with user login functionality using Flask-WTF for form handling and Flask-Login for user auth...
A class might calculate static variables during instantiation, which are then used by various functions. A common technique to optimize function performance is to precalculate expensive variables u...
I'm posting this as a language-agnostic catch-all for a simple class of logical errors, so that beginner questions can be duplicated to it in the future. In my experience, the large majority of q...
I would like to have an empty line in the cell of a table in reStructuredText. Consider the following example: .. list-table:: :header-rows: 1 * - aaa - bbb * - ccc - ddd ...
I want to make multiple comparisons at once, of the same type, in a Python program. For example, to check whether all of a certain group of strings are in a longer test string; or whether a specifi...
While trying to understand logical 'or'/'and', I encountered another problem (I'm writing Python code here, but my question is about the logic, not about any given programming language). I have som...
This is a self-answered Q&A meant as a C string handling FAQ. It will ask several questions at once which isn't ideal, but they are all closely related and I'd rather not fragment the post in...
In my desktop application developed in C++, I am encountering an issue where pressing the Ctrl + X, Ctrl + Shift + X, and Ctrl + D shortcut keys triggers a system sound. I would like to suppress o...
In C++11 the nullptr keyword was added as a more type safe null pointer constant, since the previous common definition of NULL as 0 has some problems. Why did the standards committee choose not to...
This question is adapted from a question I just helped fix up on Stack Overflow. I'm giving a different motivating example which I think will make it clearer what the requirements are and why a n...
Unless I am mistaken, myList.Select(a => a).ToList() initializes the resulting list to the capacity of myList.Count. Does myList.Where(a => true).ToList() do so or does it build up from the i...
I'm trying to make a UWP app in Visual studio, but the NuGet package files have been huge. They just don't fit on my SSD, but I do have an HDD I could theoretically use. After a bunch of tinkering...
I have a generated file I want Tilt to ignore for re-building. However, when that file changes, Tilt also detects that the parent directory has changed based on its contents changing. I can fix tha...
I see on https://huggingface.co/HuggingFaceTB/SmolLM2-135M-Instruct/tree/main/onnx: File Name Size model.onnx 654 MB model_fp16.onnx 327 MB model_q4.onnx 200 MB m...
The C language has gone through many iterations and the latest one not yet released is informally called "C23", supposedly because they hoped to release it in 2023. The latest draft version N3096 i...
Good day! I need to have 2 different models to create projects and todo lists. I've figured out, that for HTML there is only one dialog menu that can be invoked with window.dialog.showModal(); dire...
In my project, I try to fetch data from the backend to display in the frontend using fetch API. Each time I do this I get Cannot read properties of undefined (reading 'map') error. When I check the...
I am trying to install the Spacy library in VSCode in a folder with a virtual environment. The output appearing in the terminal is excessively long; I will share it with a pastebin later. My versio...
What is the portability of malloc(0);? Which platforms return NULL without setting errno? Which platforms return a non-null pointer? Do any platforms have some other behavior?
Types are often followed by exclamation marks in GraphQL schemas. What do they mean? type User { id: Int! email: String! name: String! updatedAt: String! createdAt: String...
JetBrains Rider suggests that I change this (for example): public class Foo { public int OnePlusOne { get; } = 1 + 1; } to this: public class Foo { public int OnePlusOne => 1 + 1...
I'm working on a background service/daemon for an embedded device, in Rust. The daemon manages several hardware components and these are structured using the Composite design pattern. The composite...
Setup I have a database table with field of JSONB type. I access said database using Hibernate. In hibernate I have entity mapped on said table. Entity contains field marked with @JdbcTypeCode(...
I'm trying to update a ListBox widget after dropping some files on it. This is the relevant part of my current code: fn on_file_drop(target: &DropTarget, value: &Value, ...
The topic of how to implement polymorphism in C tends to pop up now and then. Many programmers are used to OO design from higher level languages and supposedly OO is a "language-agnostic" way of pr...
Haskell tooling can be confusing. Both Stack and Cabal appear to be build tools with similar goals. How do they differ? Why should you pick one over the other?
While compiling my scala project I'm getting following error. org.scala-lang.modules:scala-parser-combinators_2.13:2.4.0 requires scala version: 2.13.13 org.scalatest:scalatest_2.13:3.2.19 requ...
I'm having trouble with an ffmpeg script that's supposed to convert videos to a specific resolution and frame rate, but the output video has unexpected dimensions and frame rate. Here's my script a...
Hello! Currently, I am trying to implement these two architectures together with Java and Spring (although technology shouldn't matter I think). But I'm encountering problems getting them to work...
I am learning how to write makefile to compile a c program. I have a directory structure like this: . ├── include │ └── library.h ├── lib │ └── library.c ├── makefile └── obj My makef...
I used to have some testing code for mocking a simple directory structure when working with pathlib. I recently tried to run these tests to learn that some of the internals in pathlib have changed ...
I'm trying to write a Elastic Search query using the C# NEST client, but right now I'm stuck on an issue with a conditional query. The query takes in two optional values, meaning they are both all...
I've recently discovered that it's not actually an error to have control reach the end of a non-void function without returning anything, it's merely undefined behaviour. I want to promote the rele...
I've got errors Uncaught TypeError: setting getter-only property "todo" and Uncaught TypeError: lib is undefined. I assume that those errors appeared when I created a new module for local sto...
Instead of classes, I want to use factory functions. Original code with classes: export class MyProject { constructor(title, description, dueDate, priority) { this.title = title; ...
I have some methods in my codebase that utilize the #if DEBUG preprocessor directive to provide specialized behavior that differs between the debugging environment and the production environment. I...
I need to filter/find and list tables using the sqlline !tables command. For example, these are the type of queries i wish to fire Find out all the tables in a particular schema s1 All tables ...
I want to run a program, e.g. Firefox, from terminal, but whenever I close the terminal, program closes too. How to detach my terminal window from a program ran from it?
I have a DTO that contains an enum field: @Getter @Setter static class Foo { Bar bar; } enum Bar { X, Y } When I deserialize a JSON, it allows int as values: var objectMapper ...
I'm currently working on a Java application using Jakarta Persistence with EclipseLink and PostgreSQL. While setting up the application to test the database layer, the persistence configuration is ...
When printing Markdown text to the terminal, how can I get a bit more formatting so it looks nicer? I realize that this is a bit of a contradiction, since terminals generally use only one font. Bu...
The documentation for git stash list says list [<log-options>] List the stash entries that you currently have. Each stash entry is listed with its name (e.g. stash@{0} is the latest entry...
I'm trying to work with a Go project that I'm taking over from another developer. The go.mod file says I need at least version 1.13, and I have 1.22.3 installed according to go version. However, wh...
I have a Map with Optional values. I want to filter it to remove empty values. Map<K, Optional<T>> input; Map<K, T> result = input. // here is some code I'm looking for ...
Let's say I have a table with SQL statements in a column. I want to execute them all. create table sql_command( sql_text text ) I know how to execute one SQL statement using EXEC, but I wa...
I'm trying to containerize a SvelteKit application that uses the @sveltejs/adapter-node. The Build and Deploy section from the documentation recommends to build the application, and then run the a...
One of "my" Android apps is showing a heavy frequency of "slow exit" application-not-responding (ANR) problems. The Play Console has the "insight": Slow exit Problem The main thread has finish...
I have a C/++ codebase that compiles in Windows x86_64 targeting x86 using the mingw32 32-bit shell of the MSYS64 project. (It also compiles fine on linux x86/x86_64 and android's 4 archs.) Howev...
