signature MLTON_MONO_ARRAY =
   sig
      type t
      type elem
      val fromPoly: elem array -> t
      val toPoly: t -> elem array
   end
- 
type t
type of monomorphic array
 - 
type elem
type of array elements
 - 
fromPoly a
type cast a polymorphic array to its monomorphic counterpart; the argument and result arrays share the same identity
 - 
toPoly a
type cast a monomorphic array to its polymorphic counterpart; the argument and result arrays share the same identity