Map.OrderedType(3) OCaml library Map.OrderedType(3) NAME Map.OrderedType - Input signature of the functor Map.Make. Module type Module type Map.OrderedType Documentation Module type OrderedType = sig end Input signature of the functor Map.Make . type t The type of the map keys. val compare : t -> t -> int A total ordering function over the keys. This is a two-argument function f such that f e1 e2 is zero if the keys e1 and e2 are equal, f e1 e2 is strictly negative if e1 is smaller than e2 , and f e1 e2 is strictly positive if e1 is greater than e2 . Example: a suitable ordering function is the generic structural comparison function compare . OCamldoc 2024-05-31 Map.OrderedType(3)