ref: 4adc2f773870b45442ed27e5e794ade92e4fe2f0 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 ;; }