--- /dev/null
+// Copyright David Abrahams 2002.
+// Distributed under 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)
+#include <boost/python/detail/wrap_python.hpp>
+#include <boost/python/borrowed.hpp>
+#include <boost/static_assert.hpp>
+
+using namespace boost::python;
+
+template <class T>
+void assert_borrowed_ptr(T const&)
+{
+ BOOST_STATIC_ASSERT(boost::python::detail::is_borrowed_ptr<T>::value);
+}
+
+template <class T>
+void assert_not_borrowed_ptr(T const&)
+{
+ BOOST_STATIC_ASSERT(!boost::python::detail::is_borrowed_ptr<T>::value);
+}
+
+int main()
+{
+ assert_borrowed_ptr(borrowed((PyObject*)0));
+ assert_borrowed_ptr(borrowed((PyTypeObject*)0));
+ assert_borrowed_ptr((detail::borrowed<PyObject> const*)0);
+ assert_borrowed_ptr((detail::borrowed<PyObject> volatile*)0);
+ assert_borrowed_ptr((detail::borrowed<PyObject> const volatile*)0);
+ assert_not_borrowed_ptr((PyObject*)0);
+ assert_not_borrowed_ptr(0);
+ return 0;
+}