ref: 03bf16f1492a7bb4b01fad3d1424f9f185788b0b
dir: /lib/std/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 ;; }