Generic Function Find-Edge-Between-Vertexes-If (2 methods)

( find-edge-between-vertexes-if < graph > < value-or-vertex-1 > < value-or-vertex-2 > < fn > &key < error-if-not-found? > )

Finds and returns an edge between value-or-vertex-1 and value-or-vertex-2 if one exists. Unless error-if-not-found? is nil, then a error will be signaled. [?? Error not signal, need test.]

Method Summary

find-edge-between-vertexes-if < graph-container > < graph-container-vertex > < graph-container-vertex > < T >

find-edge-between-vertexes-if < graph-container > < T > < T > < T >