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added weight method #1

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added weight method #1

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566a86f
Added WEIGHT method that specializes on weighted-edge-mixin
masonium Jan 13, 2011
f109546
Fixed bug in rootp
masonium Jan 16, 2011
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5 changes: 3 additions & 2 deletions dev/graph.lisp
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Original file line number Diff line number Diff line change
Expand Up @@ -130,7 +130,8 @@ something is putting something on the vertexes plist's


(defmethod weight ((edge basic-edge)) (values 1.0))

(defmethod weight ((edge weighted-edge-mixin))
(slot-value edge 'weight))

(defclass* basic-graph ()
((graph-vertexes :unbound ir)
Expand Down Expand Up @@ -643,7 +644,7 @@ something is putting something on the vertexes plist's

(defmethod rootp ((vertex basic-vertex))
;;?? this is inefficient in the same way that (zerop (length <list>)) is...
(zerop (source-edge-count vertex)))
(zerop (target-edge-count vertex)))


(defmethod find-vertex-if ((graph basic-graph) fn &key key)
Expand Down