diff --git a/static_assert_example_3.cpp b/static_assert_example_3.cpp
new file mode 100644
index 0000000..1cc1545
--- /dev/null
+++ b/static_assert_example_3.cpp
@@ -0,0 +1,33 @@
+//  (C) Copyright John Maddock 2000.
+//  Use, modification and distribution are subject to the 
+//  Boost Software License, Version 1.0. (See accompanying file 
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org for most recent version including documentation.
+
+#include <limits>
+#include <boost/limits.hpp>
+#include <boost/static_assert.hpp>
+
+template <class UnsignedInt>
+class myclass
+{
+private:
+   BOOST_STATIC_ASSERT((std::numeric_limits<UnsignedInt>::digits >= 16)
+                        && std::numeric_limits<UnsignedInt>::is_specialized
+                        && std::numeric_limits<UnsignedInt>::is_integer
+                        && !std::numeric_limits<UnsignedInt>::is_signed);
+public:
+   /* details here */
+};
+
+myclass<unsigned>      m1; // this should be OK
+//myclass<int>           m2; // this should fail
+//myclass<unsigned char> m3; // and so should this
+
+int main()
+{
+   return 0;
+}
+
+