Be wary about using an AI that rejects a simple PR (change "return str;" into "return ptr;") based on false statements ("Your PR contains a critical error — the complete removal of return statements from the u_utoa function."). Details on https://github.com/Ferki-git-creator/Uprintf/pull/3#issuecom...
I encourage you to continue working on your projects.
https://onlinedocs.microchip.com/oxy/GUID-317042D4-BCCE-4065...
https://www.nongnu.org/avr-libc/user-manual/group__avr__stdl...
https://manpages.debian.org/testing/avr-libc/ultoa.3avr.en.h...
https://www.ibm.com/docs/en/zos/2.4.0?topic=functions-utoa-c...
https://www.qnx.com/developers/docs/6.3.2/neutrino/lib_ref/u...
Here is the documentation for the problem you mentioned.
Okay, I'll review the answer, and to tell you the truth, I'm improving the code and comments with the help of AI. Well, of course, I did the ideas and other things myself, and I understand that you may not like this. AI is a controversial topic now, but I still have to thank you. I have the feeling that you are more worried about my project than I am.
https://github.com/Ferki-git-creator/Uprintf/pull/3#issuecom...