# Module Map

    module Map: sig .. end

Association tables over ordered types.

This module implements applicative association tables, also known as finite maps or dictionaries, given a total ordering function over the keys. All operations over maps are purely applicative (no side-effects). The implementation uses balanced binary trees, and therefore searching and insertion take time logarithmic in the size of the map.

    module type OrderedType = sig .. end

Input signature of the functor `Map.Make`.

    module type S = sig .. end

Output signature of the functor `Map.Make`.

    module Make: functor (Ord : OrderedType) -> S  with type key = Ord.t

Functor building an implementation of the map structure given a totally ordered type.