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? > )

Part of:

package cl-graph

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 < cl-graph:graph-container > < cl-graph:graph-container-vertex > < cl-graph:graph-container-vertex > < t > 
find-edge-between-vertexes-if < cl-graph:graph-container > < t > < t > < t >