From f130489709cf00794aa275312d506f501ae4c89f Mon Sep 17 00:00:00 2001
From: Andreas Fabri <Andreas.Fabri@geometryfactory.com>
Date: Tue, 11 May 2010 09:07:56 +0000
Subject: [PATCH] overload function for const-correctness (discovered by Intel
 compiler)

---
 .../include/CGAL/Sweep_line_empty_visitor.h                  | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Arrangement_on_surface_2/include/CGAL/Sweep_line_empty_visitor.h b/Arrangement_on_surface_2/include/CGAL/Sweep_line_empty_visitor.h
index 9f25a4cd35a..d86bb623630 100644
--- a/Arrangement_on_surface_2/include/CGAL/Sweep_line_empty_visitor.h
+++ b/Arrangement_on_surface_2/include/CGAL/Sweep_line_empty_visitor.h
@@ -269,6 +269,11 @@ private:
   {
     return (reinterpret_cast<Sweep_line*>(m_sweep_line));
   }
+
+  const Sweep_line* _sweep_line () const
+  {
+    return (reinterpret_cast<const Sweep_line*>(m_sweep_line));
+  }
 };
 
 CGAL_END_NAMESPACE