Module Tuple

module Tuple: Tuple

module T2: sig .. end

Signature for a 2-tuple module

module T3: sig .. end

Signature for a 3-tuple module

These functors allow users to write:

   module Foo = struct
     include Tuple.Make       (String) (Int)
     include Tuple.Comparable (String) (Int)
     include Tuple.Hashable   (String) (Int)
   end

module Make: functor (T1 : sigtype t 

end) -> functor (T2 : sigtype t 

end) -> sig .. end

module type Comparable_sexpable = sig .. end

module Comparable: functor (S1 : Comparable_sexpable) -> functor (S2 : Comparable_sexpable) -> Comparable_sexpable  with type t := Make (S1) (S2).t

module type Hashable_sexpable = sig .. end

module Hashable: functor (S1 : Hashable_sexpable) -> functor (S2 : Hashable_sexpable) -> Hashable_sexpable  with type t := Make (S1) (S2).t

The difference between Hashable and Hashable_t functors is that the former's result type doesn't contain type t and the latter does.

module Hashable_t: functor (S1 : Hashable_sexpable) -> functor (S2 : Hashable_sexpable) -> Hashable_sexpable  with type t = Make (S1) (S2).t

module Sexpable: functor (S1 : Sexpable.S) -> functor (S2 : Sexpable.S) -> Sexpable.S  with type t := Make (S1) (S2).t