lib/mlton/basic/het-container.sig

   1 (* Copyright (C) 1999-2005 Henry Cejtin, Matthew Fluet, Suresh
   2  *    Jagannathan, and Stephen Weeks.
   3  *
   4  * MLton is released under a BSD-style license.
   5  * See the file MLton-LICENSE for details.
   6  *)
   7
   8 signature HET_CONTAINER =
   9    sig
  10       type t
  11
  12       val new: unit -> {make: 'a -> t,
  13                         pred: t -> bool,
  14                         peek: t -> 'a option}
  15    end