klutt‭

Increase exposure One way of increasing our exposure is to use Codidact as a source when answering on other forums. As long as we are treating Codidact as any other source, there is absolutely not...

posted 3y ago by klutt‭  ·  edited 3y ago by klutt‭

Linux questions in general are not really topic here. But Bash is. After all, Bash IS a scripting language as much as Javascript. I have a hard time thinking of a question about Bash that is not o...

posted 4y ago by klutt‭  ·  edited 4y ago by klutt‭

Sometimes when I ask questions here, I get told that I should include a minimal, reproducible example. What is that?

1 answer  ·  posted 3y ago by klutt‭  ·  last activity 3y ago by klutt‭

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...

posted 3y ago by klutt‭  ·  edited 3y ago by klutt‭

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...

3 answers  ·  posted 3y ago by klutt‭  ·  last activity 1y ago by Lundin‭

This is intended to be a canonical post for this problem which is pretty common. Especially among beginners. I've heard that I should avoid using floating point variables for representing curren...

2 answers  ·  posted 3y ago by klutt‭  ·  last activity 3y ago by klutt‭

I have heard that it is undefined behaviour to make a pointer point outside boundaries of an array even without dereferencing it. Can that really be true? Consider this code: int main(void) { ...

2 answers  ·  posted 4y ago by klutt‭  ·  last activity 4y ago by hkotsubo‭

Consider this code: #include <stdio.h> int main(void) { static void *ptr; if(ptr == NULL) puts("It's NULL!"); } I wonder if this is guaranteed to print "It's NULL!" I know ...

1 answer  ·  posted 3y ago by klutt‭  ·  last activity 3y ago by Lundin‭

TL;DR You should use int *p = malloc(n * sizeof *p); for two reasons The cast (int*) is not necessary, which means it's clutter. Using sizeof *p instead of sizeof(int) removes code duplica...

posted 3y ago by klutt‭  ·  edited 3y ago by klutt‭

Background This is kind of a subquestion to How to properly use malloc? When allocating, there are basically two common ways of using the sizeof operator: int *p; p = malloc(n * sizeof *p); /...

1 answer  ·  posted 3y ago by klutt‭  ·  edited 3y ago by hkotsubo‭

While writing the question I actually came up with something that seems to work fairly well, and it's very simple. Just add if(false) in front of the statement.

posted 3y ago by klutt‭  ·  edited 3y ago by anatolyg‭

@BruceAlderman gave a good answer with different aspects that covers the most. I'm not very good at SQL, so my answer is more general. When I have to choose between two different things that are e...

posted 4y ago by klutt‭  ·  edited 4y ago by klutt‭

I have an Angular application. The frontend has a mechanism that periodically fetches some information like this: ngOnInit(): void { setInterval( () => { this.http.get(... ).sub...

1 answer  ·  posted 3y ago by klutt‭  ·  last activity 3y ago by meriton‭

The last few years, PHP has basically exploded with lots of modern language constructs that makes the life easier. But local constants are still missing, and I find that very strange. I have found...

0 answers  ·  posted 1y ago by klutt‭

It seems like autocompleting usernames does not work. I wanted to answer a comment and started typing @ followed by the first letter in the username, but no suggestion appeared. I tried pressing ta...

2 answers  ·  posted 4y ago by klutt‭  ·  last activity 4y ago by Mithical‭