ref: ad008b9e79bfae6db3cf4049ac441f9696f2c459
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 ;; }