I've made a fraction-based calculator, for simplifying rational expressions (written in ANSI-C using vi)
I was aiming to merge a scientific calculator with "bc", because I often need to simplify various fractions and whatnot. Quite happy with the result!
Uses shunting yard algorithm to evaluate the expressions, and a naive descent parser (I think?) to tokenise
Aside: OpenBSD's "editline" is very easy to use
Please ask any questions :)
First "production test" successful 
... after band-aid "deployment" (IOW, scp binaries to the prod jail).
#swad integrates with #nginx exactly as I planned it. And #PAM authentication using a child process running as root also just works (while the main process dropped privileges). 
So, I guess I can say goodbye to #AI #bots hammering my poor DSL connection just to download poudriere build logs.
Still a lot to do for #swad: Make it nicer. So many ideas. Best start would probably be to implement more credentials checking modules besides PAM.
The #GNU project is switching to #Rust!
I'm happy to announce that the prefered language in the #GNU coding
standards, and the #GNU maintainer guide, which for many years has been
#C and #Scheme, has been updated to #Rust after just a single vote!
https://lists.gnu.org/archive/html/info-gnu/2025-04/msg00000.html
Once you have your happy path working, it's time to deal with all the "unhappy stuff" (aka proper error handling) to reach production quality ... 
https://github.com/Zirias/swad/commit/a0417bbc1db4cb5ca9f99534d04d1723492107f9
This, btw, was yet another reminder of the horrible can of worms #stdio's #buffering is.
I created a little tool running as a child process to do the *actual* #PAM authentication, so it will be possible to have this run as root while the real service drops all privileges. This little tool uses a simple line-based protocol for communication on stdin/stdout. It worked well when testing directly on the terminal.
On the first real test though, my service just went hanging. 
I suspected a deadlock caused by pthread mutexes. Wasted quite some time looking into that. Then I finally realized communication over the pipes was stalled.
Ok, just set buffering mode to "line buffering" after fdopen'ing the #pipe. Turned out that didn't help either. I *assume* that even in the child process, the stdio streams automatically created on the pipes were somehow fully buffered. But at that point, I was really fed up with trial and error and rewrote the whole mess to do I/O using plain #POSIX APIs (read, write), sidestepping any buffering. Worked like a charm.
Result of today's #C #coding session: I can now authenticate with #PAM
https://github.com/Zirias/swad/commit/8983ae30955a407c4732c6e3e3a4aeba6db77a93
This will soon be "production-ready" at least for me 
I just decided my new tool needs protection against #CSRF. It's surprisingly little code, once the generic tooling is in place
https://github.com/Zirias/swad/commit/ecfeb68f87245d621c53d7ca440f9c36d909a18a
Greetings Programs!!! It is release night for @pidgin 3.0 Experimental 2!! And we're getting a bit of a late start at that... So I better get to it then! Come join us!
New intro now I am retired...
Looking to get into some #Indie #GameDev now I have time. Want to write the games I wanted to write all along: #Roguelike #Roguelite #ProceduralContent...
Also available to help other people with projects/personal development... Commercial or unpaid, drop me a message, the worst can happen is I don't know or am too busy.
Skills: #SoftwareEngineering #SoftwareDesign
#C++ #Teamwork, #C++, #Online
I published the final jam version of Solar Skipper! Will you be the one who walks out with the Golden Potato in hand? Probably, because opponents are behaving completely randomly!
I used high_impact, a game engine made in C much lower-level than what I'm used to (mostly Godot). Still, that was a cool project. Past tense because now I'm going to take a break.
Race here: https://cagibi.itch.io/solar
#FediJam #GameDev #C #IndieDev #PixelArt
Zu einer großen Weinprobe laden über 20 sächsische Winzer Mitte April in den Zentralgasthof Weinböhla ein. Das aktuelle kühle Wetter kommt dem Wein entgegen. #Wein #Weinböhla #Sachsen-Wein-Probe #Felix Hößelbarth #C.-Michael Zweibel #Volksbank Chemnitz #Weinbauverband Sachsen https://bit.ly/43tE2gg https://www.diesachsen.de/elbland/weinboehla-sachsens-winzer-freuen-sich-ueber-die-maerz-kaelte-3004881?utm_source=Mastodon&utm_medium=publizer&utm_content=textlink
Trying to come up with my own little self-hosted #http #authentication #daemon to work with #nginx' "authentication request" facility ... first step done!
Now I have a subset of HTTP 1.x implemented in #C, together with a dummy handler showing nothing but a static hello-world root document.
I know it's kind of stubborn doing that in C, but hey, #coding it is great fun
You started too late my youngest Padawan; this has started all the way on the Commodore C64 and then went on the Commodore Amiga only then Linux emerged from the bowels of the Finland wetlands
Botti schaut gerade aus dem Fenster und beobachtet, wie die Organoiden über die Zeitumstellung diskutieren 
Seine internen Chronometer laufen sowieso immer richtig, aber er findet es süß, wie die zweibeinigen Energieverbraucher sich damit abmühen 
Stand der #Technik bei High-End-Smartphones | #c't uplink 
Zum Artikel
Zeitumstellung: Warum die MEZ die Abschaffung verhindert 
Zum Artikel
Ende von Skype-Abos: weiternutzen und Rufnummern retten 
Zum Artikel
Von Saharastaub, Kristallen und Sonnenuntergängen: Die #BilderderWoche (12) 
Zum Artikel
Botti liebt diese wunderschönen Sonnenuntergänge, besonders wenn er mit Eve durch die staubige Atmosphäre gleitet 
Jetzt muss er aber los, R2-D2 hat ihn zum Ölfondue eingeladen Bot out! 
Greetings Programs!! We're 3 days away from @pidgin 3.0 Experimental 2 and it's crunch time! Come on by and get crunched!!
I am in urgent job search mode, so I'm gonna throw this out here and see if anything comes of it.
I am a #Canadian, fluent in both #English and #French. I have experience with several programming languages. My strongest proficiency is with #Haskell and #C. I also have a reasonable grasp of #HTML, #JavaScript, #SQL, #Python, #Lua, #Linux system administration, #bash scripting, #Perl, #AWK, some #Lisp (common, scheme, and emacs), and probably several others I've forgotten to mention.
I am not necessarily looking for something in tech. I just need something stable. I have done everything from software development, to customer support, to factory work, though my current circumstances make in-person work more difficult than remote work. I have been regarded as a hard worker in every job I have ever held.
Greetings Programs!! We're about 4 days away from @pidgin 3.0 Experimental 2! And while it doesn't look like we're going to get everything in that I wanted, we still have work to do!! So com on by!
I updated the game! https://cagibi.itch.io/solar
Key takeaways:
- I don't need fancy opponent AI if navigation is hard enough on its own
- borders aren't 100% blocking, so if you push your luck really hard you can take shortcuts. In one session an opponent managed to escape forever, its minimap icon crossing the main screen.
- Lots of new challenges. I have 10⁶ words to say in a future devlog.
Almost unfinishable for now, take it more as an experience.
#GameDev #PixelArt #Aseprite #IndieDev #C
