lib/rgraph/graph.rb in rgraph-0.0.10 vs lib/rgraph/graph.rb in rgraph-0.0.11

@@ -106,10 +106,10 @@
 
     0.upto(@nodes.size - 1).each do |i|
       i.upto(@nodes.size - 1).each do |j|
         next if i == j
         sp = shortest_path(i, j)
-        tmp << sp if sp
+        tmp << sp unless sp.empty?
       end
     end
 
     @shortest_paths = tmp
   end