From 1cc6f6d88c17db81e7edac894ac2387cef2c1007 Mon Sep 17 00:00:00 2001
From: Nico Kruithof <Nico@nghk.nl>
Date: Tue, 18 Dec 2012 13:23:15 +0100
Subject: [PATCH] Sanity check.

---
 .../include/CGAL/Periodic_2_triangulation_dummy_12.h            | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Periodic_2_triangulation_2/include/CGAL/Periodic_2_triangulation_dummy_12.h b/Periodic_2_triangulation_2/include/CGAL/Periodic_2_triangulation_dummy_12.h
index 137da3b124f..9f3de7dfb97 100644
--- a/Periodic_2_triangulation_2/include/CGAL/Periodic_2_triangulation_dummy_12.h
+++ b/Periodic_2_triangulation_2/include/CGAL/Periodic_2_triangulation_dummy_12.h
@@ -154,6 +154,8 @@ Periodic_2_triangulation_2<GT,TDS>::insert_dummy_points() {
     ret_vector[i] = vertices[i];
   }
 
+  CGAL_assertion(is_valid());
+
   return ret_vector;
 }