ref: 50c1c9eeaadb2d41ce4c5feadfc211ec75e03c1d
dir: /libstd/waitstatus-freebsd.myr/
use "die.use" pkg std = type waitstatus = union `Waitexit int32 `Waitsig int32 `Waitstop int32 ;; const waitstatus : (st : int32 -> waitstatus) ;; const waitstatus = {st match st & 0o177 | 0: -> `Waitexit (st >> 8) | 0x7f:-> `Waitstop (st >> 8) | sig: -> `Waitsig sig ;; die("unreachable") }