Module 2-Tree.E

type t
val compare : t -> t -> int
type vertex = V.t
val src : t -> vertex

Edge origin.

val dst : t -> vertex

Edge destination.

type label = unit
val create : vertex -> label -> vertex -> t

create v1 l v2 creates an edge from v1 to v2 with label l

val label : t -> label

Get the label of an edge.