Some tests.

[SVN r2892]

test/helpers/check_return_type.hpp

@@ -0,0 +1,38 @@
+
+//  Copyright Daniel James 2005-2006. 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)
+
+#if !defined(BOOST_UNORDERED_TEST_HELPERS_CHECK_RETURN_TYPE_HEADER)
+#define BOOST_UNORDERED_TEST_HELPERS_CHECK_RETURN_TYPE_HEADER
+
+#include <boost/mpl/assert.hpp>
+#include <boost/type_traits/is_same.hpp>
+#include <boost/type_traits/is_convertible.hpp>
+
+namespace test
+{
+    template <class T1>
+    struct check_return_type
+    {
+        template <class T2>
+        static void equals(T2)
+        {
+            BOOST_MPL_ASSERT((boost::is_same<T1, T2>));
+        }
+
+        template <class T2>
+        static void equals_ref(T2&)
+        {
+            BOOST_MPL_ASSERT((boost::is_same<T1, T2>));
+        }
+
+        template <class T2>
+        static void convertible(T2)
+        {
+            BOOST_MPL_ASSERT((boost::is_convertible<T2, T1>));
+        }
+    };
+}
+
+#endif