I'm not a Rust programmer, but AFAIK Rust has inline functions, so if your code has lots of indexing calls, could most of the pain go away with a few short help

I'm not a Rust programmer, but AFAIK Rust has inline functions, so if your code has lots of indexing calls, could most of the pain go away with a few short helper functions? #[inline(always)] fn idx(i : u32) { usize::try_from(i).unwrap() } or #[inline(always)] fn get(arr: [T], i : u32) { arr.[usize::try_from(i).unwrap()] } Have to repeat the definition for each numeric type you use, I guess, but hopefully you aren't using _that_ many of them.