From 2f14255dd7b4a1aa4c0b093cdede0a1b3a246905 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 9 Sep 2010 10:17:55 +0000
Subject: [PATCH] From Joachim Pouderoux, "Please find attached a very small
 fix for the DXF reader. The bug made OSG crash with some files. Actually, itr
 was incremented into the loop and after the test with nlist.end(). Then, the
 unreferencing of itr when nlist is equals to nlist.end() caused the crash."

---
 src/osgPlugins/dxf/dxfEntity.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/osgPlugins/dxf/dxfEntity.cpp b/src/osgPlugins/dxf/dxfEntity.cpp
index a5fb2ef2f..e1bd1d3a8 100644
--- a/src/osgPlugins/dxf/dxfEntity.cpp
+++ b/src/osgPlugins/dxf/dxfEntity.cpp
@@ -594,8 +594,7 @@ dxfPolyline::drawScene(scene* sc)
         double bad_c = 0;
         double good_c = 0;
         long bad=0,good=0;
-        for (; itr != nlist.end(); ) {
-            ++itr;
+        for (; itr != nlist.end(); ++itr) {
             if ((*itr)== lastn) continue;
             Vec3d diff = ((*itr)-lastn);
             diff.normalize();