base/NullType

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/****************************************************************************
  Copyright (C)2001 by Andrei Alexandrescu

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 ****************************************************************************
  Loki Original Distribution Terms:

  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.
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  $Id: NullType 1029 2004-02-11 20:45:54Z jungd $
  $Revision: 1.1 $
  $Date: 2004-02-11 15:45:54 -0500 (Wed, 11 Feb 2004) $
  $Author: jungd $
 
****************************************************************************/

// Last update: June 20, 2001

#ifndef NULLTYPE_INC_
#define NULLTYPE_INC_

namespace base
{
////////////////////////////////////////////////////////////////////////////////
// class NullType
// Used as a placeholder for "no type here"
// Useful as an end marker in typelists 
////////////////////////////////////////////////////////////////////////////////

    class NullType {};
}

////////////////////////////////////////////////////////////////////////////////
// Change log:
// June 20, 2001: ported by Nick Thurn to gcc 2.95.3. Kudos, Nick!!!
////////////////////////////////////////////////////////////////////////////////

#endif // NULLTYPE_INC_

---