General Q&A about programming, scripting, software design & architecture, process, tools, testing, and more.
I want a way to make it so that I can use list B to find out if a copy of itself exists in list A. listA = ['1', '1', '0', '1', '0', '1', 'down'] 2 ['0', '0', '1', '1', '1', '1', 'up'] 2 ['1', '...
MWE filename = "bad_dir" print(f"File not found: {filename}.") raise(FileNotFoundError) Question How do I raise an exception while adding additional information? In the example above, the...
I am writing a todolist application in WPF with MVVM. I display the goals in a datagrid and the editing works fine. Changes made in the grid are saved to the DB when I click save. However, adding a...
The question is about libraries that extend the data type system to ensure physically realistic computations. Think std::chrono but for distance and mass and other things as well as for time. Inste...
Note: this is based on my question on SO and subsequent activity there I am trying to add resilience using Polly to HTTP calls that are performed using Refit library. I am using the Refit factory...
When I tried to emulate the app that I coded in the connected phone, it keeps closing due to crashes, is there any problem with my code? Also, I am trying to make a timer app with picture and pict...
this is my build.gradle.app file: plugins { id 'com.android.application' } android { compileNdk flutter.compileNdkVersion compileOptions{ sourceCompatibility Ja...
I have two classes, Contestant and Picture, with the following setup: public class Contestant { ... public int AvatarID { get; set; } [ForeignKey(nameof(AvatarID))] public ...
I'm using the os.rename function in a lua script. It works perfectly fine for renaming files on my hard drive, e.g. os.rename("test.txt","/Users/username/Desktop/test2.txt") will rename the fil...
I have been trying to generate a random object on all three axis in different locations. However, Vector3 doesn't accept that many overloads e.g: Vector3 spawnPos = new Vector3(Random.Range(spawnL...
I learned about the ** operator for array-repeat, and I love it. I have a struct that contains a 2-d array of inner structs, like const D1 = 30; const D2 = 40; const Inner = struct { .a: u32, ....
For my company, I'm writing naming conventions for embedded code in C language. Function names must be named in lowerCamelCase() and start with a verb. Global variables are in Maj_started_lowe...
I have a parent div with two child divs. I want the parent div and the child divs to have a blue background color when it's hovered. But the child divs doesn't inherit the background color. It is o...
I am getting a white screen issue for my angular portal, only if I am not using "USB tethering". When I use home/office wifi, and mobile hotspot, I get a white screen when I use USB tethering fro...
Getting the following error only when I call a post API through Nginx [0m[31m12:48:35,903 ERROR [io.acurio.hub.api.rest.impl.DesignsResource] (default task-16) Failed to invoke workflow: com.masha...
Is it undefined behaviour to cast an uninitialized variable to (void)? Example: int main() { int x; (void)x; return 0; }
We are using Jenkins to run our system tests on a regular schedule. The Jenkins job downloads some python scripts from Perforce, runs them and compares the outputs with known-good results. The pro...
In Git documentation, there are lots of references to the term "HEAD". But what exactly is it? Some places refer to it as "a pointer to the current branch". So it's a branch? What is it used for?
I am trying to create an application that takes a date as user input which is then passed as a parameter to an API call. The local date format is dd/MM/yyyy. I want the user to be able to enter t...
I'm using ffmpeg to apply a filter in between two time points. I am using the between() operator to specify the times. For example, to apply the yadif filter between 30 and 90 seconds I run: ffmpe...
I have this code syms t y(t) = t*heaviside(t)*heaviside(1-t); x(t) = piecewise(0<=t<=1,1,t<0,0,t>1,0); l = -2:0.01:2; disp(y(l)); disp(x(l)); and in the output, I ge...
For someone who was familiar with C++ in the past and is coming back to it after a long break, what are some useful books that won't waste time with basics but will cover the new features of the mo...
I've heard that in modern C++, smart pointers are preferred to raw pointers for ownership (the so-called RAII principle, as I understand it). This makes sense, and since then I've always used them...
There's this new challenge on Code Golf CD and I'm using Python to do it. A little bit of golfing already took place, so the code might look a bit messy for you. Anyway, I'm proud of what I've writ...
I'm using an object-oriented design for my C project and trying to implement classes with private encapsulation. How do I do this? Some things I've tried that are problematic: Using a struct f...
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 noticed when attempting to generate random booleans that t and f are not treated in the same way: t random ! Error f random ! returns a value In the factor 0.98 and 0.99 documentation, t is ...
To get a value from an assoc and provide a default value if the value does not exist, I am using the following definition: :: at-def ( key assoc default -- value ) key assoc ?at [ drop default ] w...
I am trying to define a syntax word as follows: USING: kernel syntax parser fry prettyprint ; IN: syn-try SYNTAX: syn scan-word '[ _ ] . ; Given a word, I want to create a quotation conta...
I am developing an application that targets Linux-based OS, and I need to store the user's configuration, metadata and other things in a persistent way (i.e. on the file system). I know that one c...
MWE import pandas as pd import numpy as np import matplotlib.pyplot as plt df = pd.DataFrame(np.random.rand(9, 4), columns=['a', 'b', 'c', 'd']) df.plot.bar(table=True) # don't want plot, ...
On branch-x, I do git merge branch-y Now there are some conflicts, and git status shows Changes to be committed: new file: a new file: b Unmerged paths: (use "git a...
What exactly is the Python Global Interpreter Lock (GIL)? As someone who is relatively new to Python, is this something I need to be aware of, or is this just some implementation detail of the inte...
Summary I'm refactoring a Rust-based service/daemon to move away from gRPC and use a Rocket-based API instead. I'm also using the daemonize crate to turn the foreground process into a background p...
MWE import pandas as pd import numpy as np import matplotlib.pyplot as plt df = pd.DataFrame(np.random.rand(9, 4), columns=['a', 'b', 'c', 'd']) df.plot.bar() plt.show() Question Ho...
I have a variable that contains a string: $CCSR = "branches/features/arm_and_musl" I want to get only the part after the last /. In this case it's "arm_and_musl" but it can be anything. So som...
class ExtendUserSession(MiddlewareMixin): """ Extend authenticated user's sessions so they don't have to log back in following 15 minutes (set by Django's default `SESSION_COOKIE_A...
If you have a class which needs to store a construction parameter internally, and you want to take advantage of move semantics, I understand that the parameter should be passed by value: class Foo...
MWE In the terminal run: mkdir mwe cd mwe mkdir dir touch f1.txt f2.pdf dir/f1.txt dir/f2.pdf git init . Create a .gitignore with: * # ignore all !dir/ # except this directory ...
I have followed Nick Chapsas' tutorial to avoid throwing a ValidationException to treat validation errors and instead rely on LanguageExt.Common.Result<> from LanguageExt library. I have ma...
I have two strings and want to remove every occurrence of the second string inside the first one starting from the beginning of the first string and as if each occurrence was removed immediately. ...
I have just created an ASP.NET Core 6 application and added NLog support for logging: NLogBuilder.ConfigureNLog("nlog.config").GetCurrentClassLogger() However, this API is almost deprecated as ...
I am using ClosedXML library to generate an Excel containing thousands of hyperlinks using cell's Hyperlink property: cell.SetValue(text).Hyperlink = new XLHyperlink(url); Such a call takes abo...
As a relative newcomer to Rust, I'm trying to understand the behaviour of lifetimes, but I am confused by the following code: let s: &str = "first"; let mut r: &str = s; println!("First ...
Is it possible to add listeners via VBScript/ JS directly into a SRSS report? Goal: Track changes of input fields and key press inside the wrapper React based on the events Directly in the...
I'd like to assert that some code can be optimized out, and is not present in the final binary object. #define CONSTANT 0 #if (!CONSTANT) [[landmine_A]] #endif static int foo(void); void...
I'm attempting a question to do with data structures, file streams & linked lists. The code isn't complete yet as I am still halfway working on it. I am required to use data structures in the d...
I want to enter a string to compare with the text file, and if that word matches, then I want to delete that line containing that string. How can I modify the code below, since the code below take...
So I just started learning how to use file-streams in C & decided to attempt a question which is to do with library management in C, however I am currently encountering some problems and feel l...
#include<stdio.h> #include<stdlib.h> int main (void){ FILE *cfPtr; char name[15]; int ID; if ((cfPtr = fopen("draft.txt","w")) == NULL){ printf("File could n...
