[swagonomixxx]

Assuming a unsigned byte, that range of values is between 0 and 255 inclusive, so `len(arr) <= 255` is correct.

[wtetzner]

But the loop goes up to 255. So if len(arr) == 10, then assert!(len(arr) <= 255) woulds succeed, but you'd get an out-of-bounds access if you tried to access arr at 11.