Addition of is_empty tests and changes to rem processing as a workaround to VC++ problem.

test/isempty_failure2.cxx

@@ -0,0 +1,25 @@
+# /* **************************************************************************
+#  *                                                                          *
+#  *     (C) Copyright Edward Diener 2014.
+#  *     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)
+#  *                                                                          *
+#  ************************************************************************** */
+#
+# /* See http://www.boost.org for most recent version. */
+#
+# include <boost/preprocessor/facilities/is_empty.hpp>
+# include <libs/preprocessor/test/test.h>
+
+#if !BOOST_PP_VARIADICS && (~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MSVC()) && (~BOOST_PP_CONFIG_FLAGS() & BOOST_PP_CONFIG_MWCC())
+
+#define ATUPLE_PLUS (atuple) data
+
+BEGIN BOOST_PP_IS_EMPTY(ATUPLE_PLUS) == 0 END
+
+#else
+  
+BEGIN 1 == 0 END
+
+#endif