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Manual Reference Pages  -  SET (3)

NAME

Set - Sets over ordered types.

CONTENTS

Module
Documentation

Module

Module Set

Documentation

Module Set
: sig end

Sets over ordered types.

This module implements the set data structure, given a total ordering function over the set elements. All operations over sets are purely applicative (no side-effects). The implementation uses balanced binary trees, and is therefore reasonably efficient: insertion and membership take time logarithmic in the size of the set, for instance.

The Make functor constructs implementations for any type, given a compare function. For instance: module IntPairs = struct type t = int * int let compare (x0,y0) (x1,y1) = match Pervasives.compare x0 x1 with 0 -> Pervasives.compare y0 y1 | c -> c end module PairsSet = Set.Make(IntPairs) let m = PairsSet.(empty |> add (2,3) |> add (5,7) |> add (11,13))

This creates a new module PairsSet , with a new type PairsSet.t of sets of int * int .

module type OrderedType = sig end

Input signature of the functor Set.Make .

module type S = sig end

Output signature of the functor Set.Make .

module Make : functor (Ord : OrderedType) -> sig end

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

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OCamldoc SET (3) 2016-03-17

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