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Consider the following method as an example: List<int> Foo() { // ... } Are there any disadvantages of returning an interface instead of a concrete implementation in C#? IList<i...
The traditional approach is to create either a single dotfile, or a single dot-directory, directly under the user's home directory, named for your application. Thus ~/.thromblemeisteradmin (which c...
Codidact has already managed somewhat to separate domain knowledge from moderator suitability. So far so good, but reputation is also a measurement of activity. It might make sense that being acti...
TL;DR A MRE (minimal reproducible example) is simply the minimal code and information needed for someone who is reading your question to reproduce the problem you are having. It needs to be enoug...
C does have references, but it does not have pass by reference. A reference is simply an expression that references an object (object here is meant in the general sense, not in the OO sense; for e...
I recently told a friend that malloc(n) allocates and returns a pointer to a block of at least N bytes of memory, as opposed to exactly N; that it is allowed to allocate 'extra' memory to meet e.g....
Storage class specifiers static is strictly speaking a storage class specifier, which is an attribute given to a variable or a function stating how it is allocated, how it is accessible and how lo...
Generally speaking, pointer arithmetic is undefined behavior unless carried out on arrays. This is how the additive operators behave, C17 6.5.6: For the purposes of these operators, a pointer to...
When writing any form of custom function such as this: void func (int* a, int* b) Should I add code to check if a and b are null pointers or not? if(a == NULL) /* error handling */ When po...
Just my two cents: I found this community because of someone's username on Stack Overflow. That's probably a good start. However I then typed 'codidact' into Google. The first result was codid...
I have seen this construct quite a lot: int *p = (int*) malloc(n * sizeof(int)); Is this how it should be? What is the proper way to use malloc? I have also seen this: int *p = malloc(n * size...
As a (for now at least) casual user, I can report that a bad first impression is that there are way too many "500 server errors". Within a few tens of minutes I ran into two, one for some profile ...
You can use the pathlib standard module with __file__ to make things simple. from pathlib import Path scriptFolder = Path(__file__).parent with open(scriptFolder / 'data.txt') as file: dat...
For some reason, I just wanted to undo a commit on my git repository, which I've done with the following command: git reset --soft HEAD~1 So far, so good. However, by mistake I issued the comma...
Using Vim, I am trying to search for all instances of a specific string, except for those that fall somewhere in between two other specific strings. For example, I want to determine all instances ...
If you've committed, then the commit is in the git repo regardless. All git reset does is change what commit the HEAD references. If you find the hash corresponding to the commit you'd like HEAD to...
You cannot set text-align on a column element (Well, you can, but it won't have any effect) There are only a couple of properties that have an effect, namely border, background, width, and visibi...
This question featured a quite heated discussion in the comments which led to some of them being removed. This action was discussed here and I have realized that our community lacks a guide about p...
There is a fundamental misunderstanding at the root of this question. Websites do not store your password client-side When you login to a website, the website does NOT store your password in a co...
The term is cultural, not technical. From Wikipedia: There is no standard for defining the term, and some difference of opinion is possible as to the degree to which a given operating system or ...
When you do x=y=z=[], you're making x, y and z point to the same list. Example: x=y=z=[] # add element to x x.append(1) # add element to y y.append(2) # but x, y and z all point to the same l...
I've seen some regular expressions (regex) using \s when they want to match a space, but I noticed that it also matches line breaks. Example: the regex [a-z]\s[0-9] (lowercase ASCII letter, follow...
What you're asking is a very broad topic, and it'd require entire books to cover everything. For the sake of simplicify, I'll just stick to the basics. Inheritance Inheritance can be explai...
C programs are executed from top to bottom. You can't declare a VLA with an uninitialized variable as its size parameter. For the same reason at you can't do this: int x; printf("%d\n",x); scanf...
I looked at your answer and those comments, skimmed the Wikipedia page, and I do not see direct copies. OOP is a fundamental topic, widely taught and widely written about. It's not surprising to ...
