I am reading Real World Ocaml. I read about the modules and functors.
type t = (string,int,String.comparator_witness) Map.t of it is not making sense. What is it doing? What is this syntax? Any pointers in the docs?
open Base type t = (string,int,String.comparator_witness) Map.t let empty = Map.empty (module String) let to_list t = Map.to_alist t let touch t s = let count = match Map.find t s with | None -> 0 | Some x -> x in Map.set t ~key:s ~data:(count + 1)