Replaced some code that depends on copying

[cl-graph.git] / dev / graph-container.lisp

diff --git a/dev/graph-container.lisp b/dev/graph-container.lisp
index afafdda..f7f09ad 100644 (file)
--- a/dev/graph-container.lisp
+++ b/dev/graph-container.lisp
@@ -20,7 +20,7 @@ DISCUSSION
                             initial-contents-mixin
                             basic-graph
                             container-uses-nodes-mixin)
-  ()
+  ((vertex-pair->edge (make-container 'simple-associative-container) r))
   (:default-initargs
     :vertex-class 'graph-container-vertex
     :directed-edge-class 'graph-container-directed-edge
@@ -208,7 +208,6 @@ DISCUSSION
 
 ;;; ---------------------------------------------------------------------------
 
-
 (defmethod find-edge ((graph graph-container) (edge graph-container-edge)
                       &optional error-if-not-found?)
   (find-edge-between-vertexes
@@ -312,7 +311,8 @@ DISCUSSION
   
   (values nil))
 
+;;; ---------------------------------------------------------------------------
+
+(defmethod edge-count ((graph graph-container))
+  (size (graph-edges graph)))
 
-;;; ***************************************************************************
-;;; *                              End of File                                *
-;;; ***************************************************************************
\ No newline at end of file