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[SVN r20511]

include/boost/detail/none_t.hpp

@@ -0,0 +1,31 @@
+// (C) 2002, Fernando Luis Cacciola Carballal.
+//
+// This material is provided "as is", with absolutely no warranty expressed
+// or implied. Any use is at your own risk.
+//
+// Permission to use or copy this software for any purpose is hereby granted
+// without fee, provided the above notices are retained on all copies.
+// Permission to modify the code and to distribute modified code is granted,
+// provided the above notices are retained, and a notice that the code was
+// modified is included with the above copyright notice.
+//
+// You are welcome to contact the author at:
+//  fernando_cacciola@hotmail.com
+//
+#ifndef BOOST_DETAIL_NONE_T_17SEP2003_HPP
+#define BOOST_DETAIL_NONE_T_17SEP2003_HPP
+
+namespace boost {
+
+namespace detail {
+
+struct none_helper{};
+
+typedef int none_helper::*none_t ;
+
+} // namespace detail
+
+} // namespace boost
+
+#endif
+