From a59bdc3a301fc095b67a8b8ee1c4e91ca16a8663 Mon Sep 17 00:00:00 2001
From: Mathieu Lacage <mathieu.lacage@gmail.com>
Date: Wed, 10 Aug 2011 13:14:42 -0400
Subject: [PATCH] bug 1239: Add assertion that reference count never overflows

---
 src/core/model/simple-ref-count.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/core/model/simple-ref-count.h b/src/core/model/simple-ref-count.h
index ed0d42488..ad2916a18 100644
--- a/src/core/model/simple-ref-count.h
+++ b/src/core/model/simple-ref-count.h
@@ -24,7 +24,9 @@
 
 #include "empty.h"
 #include "default-deleter.h"
+#include "assert.h"
 #include <stdint.h>
+#include <limits>
 
 namespace ns3 {
 
@@ -79,6 +81,7 @@ public:
    */
   inline void Ref (void) const
   {
+    NS_ASSERT (m_count < std::numeric_limits<uint32_t>::max());
     m_count++;
   }
   /**