X-Git-Url: http://plrg.eecs.uci.edu/git/?p=c11tester.git;a=blobdiff_plain;f=funcnode.cc;h=18d7771bfba63ff6460a29039a564be1cd4e4000;hp=bf8971bdfbf4de48eba3a53a20323358f3594477;hb=291ac33e363ce8a7b39441c0fa5c8e44ff84cdc6;hpb=0acd7ac85bd6004e53e1283a2900ffef7debeed8

diff --git a/funcnode.cc b/funcnode.cc
index bf8971bd..18d7771b 100644
--- a/funcnode.cc
+++ b/funcnode.cc
@@ -640,6 +640,10 @@ void FuncNode::add_out_edge(FuncNode * other)
 	}
 }
 
+/* Compute the distance between this FuncNode and the target node.
+ * Return -1 if the target node is unreachable or the actual distance
+ * is greater than max_step.
+ */
 int FuncNode::compute_distance(FuncNode * target, int max_step)
 {
 	SnapList<FuncNode *> queue;