ref: eed72af62209c958db8cfd6af207cccd9f2daa18
dir: /libstd/hasprefix.myr/
use "cmp.use"
pkg std =
const hasprefix : (s : byte[:], pre : byte[:] -> bool)
;;
const hasprefix = {s, pre
match strncmp(s, pre, pre.len)
| `Equal: -> true
| _: -> false
;;
}