(* Copyright (C) 1999-2006 Henry Cejtin, Matthew Fluet, Suresh * Jagannathan, and Stephen Weeks. * * MLton is released under a BSD-style license. * See the file MLton-LICENSE for details. *) structure C_Errno :> sig type 'a t val check: 'a t -> 'a val inject: 'a -> 'a t end = struct type 'a t = 'a val check = fn x => x val inject = fn x => x end