Module Sig.IM.Mark

module Mark: Sig.MARK  with type graph = t and type vertex = vertex
Mark on vertices. Marks can be used if you want to store some information on vertices: it is more efficient to use marks than an external table.

type graph 
Type of graphs.
type vertex 
Type of graph vertices.
val clear : graph -> unit
clear g sets all the marks to 0 for all the vertices of g.
val get : vertex -> int
Mark value (in O(1)).
val set : vertex -> int -> unit
Set the mark of the given vertex.