From 46b0abbb3b05b7c94bb9c87fb1df763cfef11f7e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Loriot?= <sebastien.loriot@cgal.org>
Date: Wed, 28 Sep 2016 13:56:22 +0200
Subject: [PATCH] do nothing if the face range is empty

---
 .../include/CGAL/Polygon_mesh_processing/remesh.h              | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/remesh.h b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/remesh.h
index ef622802384..186d6951a97 100644
--- a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/remesh.h
+++ b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/remesh.h
@@ -121,6 +121,9 @@ void isotropic_remeshing(const FaceRange& faces
                        , PolygonMesh& pmesh
                        , const NamedParameters& np)
 {
+  if (boost::begin(faces)==boost::end(faces))
+    return;
+
   typedef PolygonMesh PM;
   typedef typename boost::graph_traits<PM>::vertex_descriptor vertex_descriptor;
   using boost::choose_pmap;