Comment by littlestymaar

Rust is good, don't get me wrong, but bound checks are still reason why you occasionally need unsafe to get the maximum performance, because not everything can be expressed as an iterator where bound checks are automatically eliminated.

If you check Wuffs repo, you'll see benchmarks very favorably comparing to rust implementations.

And it's not surprising, wuffs is to spatial safety what the borrow checker is to temporal safety. And regarding spatial safety rust is kind of like where C++ is in terms of temporal safety: it has the choice between unsafe or runtime check hopping that a large fraction of them will get eliminated by the compiler.