ref: 3648de7668e10c8fb03a1d28c742d0ae66c96f07
dir: /libstd/waitstatus+osx.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)
| 0o177:-> `Waitstop (st >> 8)
| sig: -> `Waitsig sig
;;
die("unreachable")
}