From 92097e3a0db0c86ebb26b3a38a0247c6803a12ae Mon Sep 17 00:00:00 2001
From: Francois Fleuret <francois@fleuret.org>
Date: Fri, 4 Jan 2013 17:34:41 +0100
Subject: [PATCH] Added a comment.

---
 mtp_graph.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mtp_graph.cc b/mtp_graph.cc
index 6fb3877..a7b942d 100644
--- a/mtp_graph.cc
+++ b/mtp_graph.cc
@@ -457,6 +457,9 @@ 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 
     new_front = front;
     while(already_processed < front) {
       v = *(already_processed++);
-- 
2.20.1