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I added the numbering. It's a virtual machine. Basically, it's one or more computers pretending to be one or more computers. Believe it or not, this is incredibly useful. Say you have som...
Please compare and contrast – explain like I'm 5, in SIMPLE English – all 9 methods below? English isn't my first language.
Pre-suppose I have pictures numbered 1 to 400. I want to simultaneously combine every 4 pics in 1, so that I end up with 100 collages. Picture 1-4, 5-8, 9-12 ... will be combined. Indubitably it's...
Is uint8_t guaranteed to be a character type if it exists? Will using a uint8_t* to examine bytes of an object cause violation of the strict aliasing rule? Is the following legal code: #include &l...
My Word document has just 1 column, and I don't want to convert it into 2 columns. When you command Word to print 2 pages per sheet, Word doesn't let you shrink the white margins. How can I improv...
I'd like some help understanding why the third call to print() raises AttributeError: 'NoneType' object has no attribute 'format' from os import path import inspect def myfunction(): pri...
I'm using Doxygen to help me figure out some library code. There's an enum I know I need to use, but I don't know which file it's declared in. Searching for that identifier in Doxygen yields the p...
For my purposes, it is secure enough to use passwords to execute MySQL commands on the command line, what I would like to do is disable the warning that says, mysql: [Warning] Using a password on ...
We have two teams, dev and doc, and I'd like them to have shared access (via git) to a common subset of content. Specifically, I would like the examples that are used in the doc and that are scrip...
How do I mock tempnam() with vfsStream for code that uses it to create temporary files (for example, in a PHPUnit test)?
Based on my understanding HTTP is something client and server speak in, I mean it is like a language for a server and client to communicate(not exactly a programming language). Then how to understa...
I am a noob Java programmer. I want to create a simple login page with just username and password. So I have to combine Java and HTML. While googling I found that Servlets do the job but people are...
I was fooling around with the following C code on my trusty old x86 PC: #include <stdint.h> #include <stdio.h> int main (void) { uint32_t u32 = 0xAABBCCDD; uint8_t* ptr = (u...
Consider an object for which a method is invoked. Beyond certain point the method no longer accesses this at all. No read/writes of non-static members. No invocation of non-static methods. Is it ...
C# language version 8.0 introduces limited support for static methods, operators, etc. in interfaces. However, there are still limitations. I was hoping to use the new language features to try a ge...
Whenever I search in google why a specific language is interpreted language, I get differences between compiled languages and interpreted languages but nowhere the benefit for being interpreted rat...
Is it correct to destroy a mutex which is referenced but not owned by an unique_lock as in this code? { std::unique_ptr<std::mutex> mutex = std::make_unique<std::mutex>(); std::u...
I'm trying to write an interface to define the set of operations I expect my repositories' Unit of Work implementations to have, and I want this interface to be fulfilled by EF Core's DbContext cla...
I've been doing a lot of reading on implementing the repository pattern in C# projects and found controversy, or shall I say some strong criticism, made by seemingly very smart people with previous...
I have extensive working experience with Entity Framework ORM and have noticed two major ways of writing LINQ (LINQ2SQL): lot of eager loading: the most prevalent, uses (lots) of Includes to eag...
I am trying to filter data in the DataGrid using the texboxes using the MVVM pattern. Just not sure how to do it. Would appreciate any guidance. My current code: Model public class Technical_Bes...
tl;dr I'd like to learn a compact, cross-compiler way of selectively suppressing compiler warnings. Consider the case where you really mean to make an exact floating-point comparison using ==, o...
How do I create a flag that can be used multiple times in a command using the pflag package? For example, let's say I wanted to select multiple fields and did not want to have to use comma-separati...
I have a PHP script that uses CURL to return a JSON result that looks //Curl set up code $result = curl_exec($ch); //Error checking code $json = json_decode($result, true); //Code to process r...
I am currently making an esoteric language which requires a theoretically infinite canvas. Basically, it should be able to resize and fit the contents of the drawing in and outside it's existing bo...
I am planning to build a "Customer Management Portal" as a hobby project using technologies like HTML,CSS,JavaScript,JAVA,JDBC,Oracle Database.The description of the portal is: 1)Customer details ...
I have found this nice library for parsing/writing .elf files as output by e.g. the GCC toolchain: ELFIO I have a bare metal embedded project with an ARM Cortex M target. My goal is to overwrite...
Master lists like 82 food subreddits and 128 tech subreddits don't indicate each's subscribers. if it's private. Sometimes moderators can make the sub private for several days, to clean i...
I don't understand why American Virtual Cloud Technologies, Inc and other similar teeny cloud computing platforms still exist, and haven't either gone bankrupt, or been acquired by one of Big Tech...
I am building an Android app to perform a DICOM C-Echo. (DICOM is a standard for storing and transferring medical images; the specification is at dicom.nema.org). My purpose is to learn more about ...
It is possible to create a new formatter class by subclassing string.Formatter class and then to use it like myformatter.format("{foo:customformat}", foo=foo). It's not super-convenient though, and...
I am currently making a userscript to interpret the APL programming language in a Stackexchange chat window. This is the code I have come up with: // ==UserScript== // @name APL chat // @ver...
I am slowly modernizing an older ASP.NET Core Web API and one of the steps involved migrating from database first to code first. Now, all schema changes and seeding is covered by migrations which ...
So,I'm having a doubt when I call std:async() on a member function of a class. The book I'm reading says (emphasis mine) You can also pass a pointer to a member function to async(). In that case...
I am currently dealing with an Angular application that is being deployed using an CI orchestrator and Jenkins. Jenkins job is configured to do the following (relevant steps only): fetch source...
I have decide to try out Julia. Is anyone aware of some good resources to get started with the language?
I am using tf.keras.preprocessing.image_dataset_from_directory. According to the documentation, the related image_size parameter is the Size to resize images to after they are read from disk. How...
My work tasks have recently started requiring me to use the type_traits header to restrict the classes that may be used in template functions, methods, and classes. And while I used it for a long t...
I'm trying to understand the purpose of the wait() function in Class future<> for C++. At the moment I don't see any purpose for calling wait() instead of get(). What I have tried in code: i...
Let's say we have two tables A and B and a join table C that has foreign keys to both A and B and the combination of those foreign keys is unique. One could either do a unique constraint or a comp...
Its possible to execute a MySQL file from the command line like so, mysql -u USER -pPASSWORD < FILENAME which triggers a warning, mysql: [Warning] Using a password on the command line int...
I have line-based data on the form x1=y2; a3=b4; c5=d6; ... Matching this with a extended regular expression is fairly straightforward; for example, one can do something not entirely dissimilar...
Someone told me that I shouldn't write "NULL pointer" with capital letters, because a null pointer and NULL are different terms. And that NULL is a "null pointer constant". What's the meaning of th...
The Problem I have a path optimization problem that in some ways reminds me of the Traveling Salesman Problem, but differs in some key respects. I have a group of items that need to be used by a m...
Answers to Excel - Get only values from column that are not Zero “0” asked by @CiscoNewb includes ones applying AGGREGATE: =IFERROR(INDEX(A:A,AGGREGATE(15,6,ROW(A$2:A$12)/(A$2:A$12>0),ROW(A1)))...
I have recently contributed to a Clean Code project and had a discussion about how to implement unit tests. The project author argues for using an in-memory database (which easily replaces the rea...
I have a big Cypher query that is depending on a variable. Example: With REGION = 'Canada' query I want to execute this query several times based on different values on a list and return the UN...
Using the below graph as an example: I am trying to determine all Persons which are_sons of Persons all born in the same country. Is there an elegant way to achieve this with Cypher?
In a stored procedure let's say I have a VARCHAR variable, DECLARE example_variable VARCHAR(100); how much memory is allocated to it and is that independent of the length of the data in the var...
Is there any guarantee regarding initialization of static and thread_local objects? In example, is there any guarantee about the value printed by the following program? #include<iostream> s...
