improve graphs a bit.

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@2285 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
2008-06-26 13:09:15 +00:00
parent bcfa65e227
commit 0dd1ed933e
7 changed files with 248 additions and 89 deletions
--- a/library/undgraphs.yap
+++ b/library/undgraphs.yap
@@ -29,7 +29,8 @@
 	    dgraph_vertices/2 as undgraph_vertices,
 	    dgraph_complement/2 as undgraph_complement,
 	    dgraph_symmetric_closure/2 as dgraph_to_undgraph,
-	    dgraph_edge/3 as undgraph_edge
+	    dgraph_edge/3 as undgraph_edge,
+	    dgraph_reachable/3 as undgraph_reachable
 	    ]).