Zig and Odin compiler may implicitly pass variables by references[1][2], creating hidden aliasing, that's one thing unacceptable for me coming from C, I haven't read about C3 doing this, hopefully it doesn't and not planned in the future.

[1] https://www.1a-insec.net/blog/25-zig-reference-semantics/ [2] https://github.com/odin-lang/Odin/issues/2971