It is a bit off-topic here, but anybody tried to use such LLMs for code porting: from c++ (and similar) to plain C99+?

Yeah, look at what https://x.com/badlogicgames has done porting an engine with the help of Claude Code. He's set up a TODO loop to perform this: https://github.com/badlogic/claude-commands – background blog article: https://mariozechner.at/posts/2025-06-02-prompts-are-code/

	▲	sylware 5 days ago \| parent \| next [-]
		Mariosechner post looks very promising. We may finally get to the devs doing lock-in using ultra complex syntax languages in a much more efficient way using LLMs. I have already some ideas for some target c++ code to port to C99+.
	▲	badlogic 5 days ago \| parent \| prev [-]
		The todo and porting "programs" are unrelated. The blog post shows the full porting pipeline.

ACCount36 5 days ago | parent | prev [-]

One of the best use cases for LLMs. They excel at this kind of translation-adjacent task.