Module type Utils.Comparable

module type Comparable = sig .. end

Interface for comparable and hashable types. Modules implementing this interface can be an argument of Map.Make, Set.Make or Hashtbl.Make.

Since 2.0

type t

val equal : t -> t -> bool

Equality over t.

val compare : t -> t -> int

Comparison over t. compare x y returns 0 iff equal x y = 0. If x and y are not equal, it returns a negative integer iff x is lesser than y and a positive integer otherwise.

val hash : t -> int

A hash function over t.