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[lyx.git] / boost / boost / mpl / void.hpp

diff --git a/boost/boost/mpl/void.hpp b/boost/boost/mpl/void.hpp
index 977c52148e45274d872c8ff9e6e5c04d42e11501..9c429a3f81ab3547c9339bf4689afcdf2df1bf15 100644 (file)
--- a/boost/boost/mpl/void.hpp
+++ b/boost/boost/mpl/void.hpp
@@ -2,29 +2,25 @@
 #ifndef BOOST_MPL_VOID_HPP_INCLUDED
 #define BOOST_MPL_VOID_HPP_INCLUDED
 
-// + file: boost/mpl/void.hpp
-// + last modified: 05/may/03
-
-// Copyright (c) 2001-03
-// Peter Dimov, Aleksey Gurtovoy
+// Copyright Aleksey Gurtovoy 2001-2004
 //
-// Permission to use, copy, modify, distribute and sell this software
-// and its documentation for any purpose is hereby granted without fee, 
-// provided that the above copyright notice appears in all copies and 
-// that both the copyright notice and this permission notice appear in 
-// supporting documentation. No representations are made about the 
-// suitability of this software for any purpose. It is provided "as is" 
-// without express or implied warranty.
+// 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/libs/mpl for documentation.
 
-#include "boost/mpl/void_fwd.hpp"
-#include "boost/mpl/bool.hpp"
-#include "boost/mpl/aux_/config/msvc.hpp"
-#include "boost/mpl/aux_/config/workaround.hpp"
+// $Source: /cvsroot/boost/boost/boost/mpl/void.hpp,v $
+// $Date: 2004/09/02 15:40:42 $
+// $Revision: 1.9 $
+
+#include <boost/mpl/void_fwd.hpp>
+#include <boost/mpl/bool.hpp>
+#include <boost/mpl/aux_/na_spec.hpp>
+#include <boost/mpl/aux_/config/msvc.hpp>
+#include <boost/mpl/aux_/config/workaround.hpp>
 
-namespace boost {
-namespace mpl {
+BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN
 
 //  [JDG Feb-4-2003] made void_ a complete type to allow it to be
 //  instantiated so that it can be passed in as an object that can be
@@ -32,6 +28,10 @@ namespace mpl {
 //  a zero arity functor evaluation call.
 struct void_ { typedef void_ type; };
 
+BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE
+
+namespace boost { namespace mpl {
+
 template< typename T >
 struct is_void_
     : false_
@@ -50,7 +50,27 @@ struct is_void_<void_>
 #endif
 };
 
-} // namespace mpl
-} // namespace boost
+template< typename T >
+struct is_not_void_
+    : true_
+{
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+    using true_::value;
+#endif
+};
+
+template<>
+struct is_not_void_<void_>
+    : false_
+{
+#if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
+    using false_::value;
+#endif
+};
+
+BOOST_MPL_AUX_NA_SPEC(1, is_void_)
+BOOST_MPL_AUX_NA_SPEC(1, is_not_void_)
+
+}}
 
 #endif // BOOST_MPL_VOID_HPP_INCLUDED