levodelellis

7 ms·

31.
by levodelellis 1y ago
I've been meaning to ask you what the motivation of your project is? Why would you want a safe-c? When I saw the headline I was worried that all my runtime code would break (or get slower) because I do some very unsafe things (I have a
32.
by levodelellis 1y ago
I don't remember, I grabbed a project that I can't remember the name of and compiled something else first to warm up the compiler then compile the project. I tried several times and it seemed to be consistently < 100K
33.
by levodelellis 1y ago
I'd call it not terribly slow. IIRC it didn't hit 100k lines on an M2, while I saw over two million on my own compiler (I used multiple instances of tcc since I didn't want to deal with implementing debug info on mac)
34.
by levodelellis 1y ago
Yes. I once was thinking I should write a x86-64 codegen for my own compiler, but using tcc I was able to reach 3 million lines in a second (using multi-threading and multiple instances of tcc) so I called it a day. I never did check out if
35.
Nimble-C (C and C++ compiler) compiles millions of lines per second(nimble-c.com)
2 points by levodelellis 1y ago|0 comments
36.
by levodelellis 1y ago
That took me a long time too. It was rewarding tho
37.
by levodelellis 1y ago
I didn't heavily use undo trees so I don't remember how neovim/emacs displays it. I think I get it enough that if I try it out I'll be able to understand what you mean
38.
by levodelellis 1y ago
Just a thought, do you want it as a tree? It seems like it'd make more sense if there was a bar or key you can press to go back and forward to the changes you want. I didn't really understand why having it as a tree was helpful. I
39.
by levodelellis 1y ago
That's one reason why I implemented it so it wouldn't lose information. Hmm. I plan to implement a diff. The way I have it, you could copy the current source, hit undo to a version you want to compare again than use the clipboard
40.
by levodelellis 1y ago
I'm writing an editor. Could you explain to me the use case? I looked it up and I don't exactly understand the reason besides it might be fun to look at I really did not like that other editors would lose text if you pressed undo
41.
by levodelellis 1y ago
Please gcc, let me have a `~/.config/gcc` config file or an ENV variable so I can ask for single lined error messages. I literally do not need ascii art to point to my error, just tell me line:col and a unique looking error messag
42.
by levodelellis 2y ago
Great interview, more please. Is there a way to submit question? I'd like to know 1) what affects branch predictors? From my understanding return statements do and cmov does not 2) Why isn't there a conditional exception? to repla
43.
by levodelellis 2y ago
One way to avoid the extra code from constructors is to make them constexpr. This way the compiler can initialize it with 0 or a value and not generate all that extra code to execute a constructor at runtime. I'm not sure how many peop
44.
by levodelellis 2y ago
Has anyone told you to never use atomics? Have you not heard lockless programming is hard? (I saw this recently https://wiki.libsdl.org/SDL2/CategoryAtomic ,) Have you written multi-threaded programs? I written two larg
45.
by levodelellis 2y ago
I'm the author No, please don't
46.
by levodelellis 2y ago
If you want to write code to show me what you're talking about (best if I can run it) I'll tell you why or why not. I can tell you right now I dislike DI (and singletons) for reasons I can't cover in a single post
47.
by levodelellis 2y ago
I had a feeling someone would bring this up (I'm the author.) Your state really shouldn't be depending on IDs or handles from a counter function. I'm not sure if most people can agree with what is considered using a global va
48.
by levodelellis 2y ago
I'm the author. I seen people make mistakes writing pure functions with many if statements in them. For a small period I heard people say loops should be banned. Would you want to go that far? If your narrow the usage of a global withi
49.
by levodelellis 2y ago
I should have talked more about that in the article. I mentioned defer, making functions reentrant, etc, but languages with exceptions and without defer can make things much harder. I tried to make it clear the global state should be access
50.
by levodelellis 2y ago
There's plenty of things in programming that are "hard to use correctly". I seen many codebases that you must clone an object because passing it in a function because there was so much spaghetti data structures that you'
51.
by levodelellis 2y ago
I'm the author. You don't exactly need the program to be small, you could do a lot with a small file (under 500 lines) being the only one able to access a global variable. People seem to think it's ok to leak data from your e
52.
by levodelellis 2y ago
I'm the author of the article. How many comments are you going to write about how my usage is bad citing multi-threads when I said multi threading is out of scope? And how do you not understand this would be a how-to use thread locals
53.
I Like and Use Global Variables(codestyleandtaste.com)
36 points by levodelellis 2y ago|65 comments
54.
by levodelellis 2y ago
I read this a few years ago to refresh my 6502 knowledge, it's well done
55.
by levodelellis 2y ago
I like mutation in global variables. I don't think it's the problem. I'm explaining it in my next article
56.
by levodelellis 2y ago
You're right, I know mutable and read-only are separates, I know I seen gcc and clang put static int and global int in the same page, and I know I heard people say global variables are on the heap thousands of times. I guess I forgot g
57.
by levodelellis 2y ago
I'm the author. No, I completely disagree. No one ever complains about logs and malloc except having too much of them - A line I removed from this article The next article has examples and IMO much better, but makes no mention of actio
58.
by levodelellis 2y ago
Ouch, I partially address this in the next article
59.
by levodelellis 2y ago
Only if it's const. Otherwise the data is copied into memory you can write to
60.
by levodelellis 2y ago
I didn't mind. I knew I'd hear a lot of disagreements and incorrect thoughts. My next article has a lot of examples which should make things easier to digest. One thing I dislike about compsci is everyone has different definitions

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