Updated a comment.

diff --git a/mtp_graph.cc b/mtp_graph.cc
index a7b942d..2abe52b 100644 (file)
--- a/mtp_graph.cc
+++ b/mtp_graph.cc
@@ -459,7 +459,9 @@ void MTPGraph::compute_dp_ordering() {
   while(already_processed < front) {
     // Here, nodes before already_processed can be ignored, nodes
     // before front were set to 0 predecessors during the previous
-    // iteration. We will add the 
+    // iteration. During this new iteration, we have to visit the
+    // successors of these ones only, since they are the only ones
+    // potentially having now predecessors anymore.
     new_front = front;
     while(already_processed < front) {
       v = *(already_processed++);