First blush

git-svn-id: svn://svn.code.sf.net/p/loki-lib/code/trunk@6 7ec92016-0320-0410-acc4-a06ded1c099a

EmptyType.h

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+////////////////////////////////////////////////////////////////////////////////
+// The Loki Library
+// Copyright (c) 2001 by Andrei Alexandrescu
+// This code accompanies the book:
+// Alexandrescu, Andrei. "Modern C++ Design: Generic Programming and Design 
+//     Patterns Applied". Copyright (c) 2001. Addison-Wesley.
+// Permission to use, copy, modify, distribute and sell this software for any 
+//     purpose is hereby granted without fee, provided that the above copyright 
+//     notice appear in all copies and that both that copyright notice and this 
+//     permission notice appear in supporting documentation.
+// The author or Addison-Welsey Longman make no representations about the 
+//     suitability of this software for any purpose. It is provided "as is" 
+//     without express or implied warranty.
+////////////////////////////////////////////////////////////////////////////////
+
+// Last update: February 19, 2001
+
+#ifndef EMPTYTYPE_INC_
+#define EMPTYTYPE_INC_
+
+namespace Loki
+{
+////////////////////////////////////////////////////////////////////////////////
+// class EmptyType
+// Used as a class type that doesn't hold anything
+// Useful as a strawman class
+////////////////////////////////////////////////////////////////////////////////
+
+    class EmptyType {};
+}
+
+#endif // EMPTYTYPE_INC_