ref: f9f93d1e447873ca3e5fa6c542eb34e8dd8d4b71 dir: /lib/std/hasprefix.myr/
use "cmp" pkg std = const hasprefix : (s : byte[:], pre : byte[:] -> bool) ;; const hasprefix = {s, pre match strncmp(s, pre, pre.len) | `Equal: -> true | _: -> false ;; }