#ifndef BOOST_MPL_NOT_HPP_INCLUDED

 #define BOOST_MPL_NOT_HPP_INCLUDED

 // Copyright Aleksey Gurtovoy 2000-2004

 //

 // 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.

 // $Source: /cvsroot/boost/boost/boost/mpl/not.hpp,v $

 // $Date: 2004/09/02 15:40:41 $

 // $Revision: 1.3 $

 #include <boost/mpl/bool.hpp>

 #include <boost/mpl/aux_/nttp_decl.hpp>

 #include <boost/mpl/aux_/nested_type_wknd.hpp>

 #include <boost/mpl/aux_/na_spec.hpp>

 #include <boost/mpl/aux_/lambda_support.hpp>

 namespace boost { namespace mpl {

 namespace aux {

 template< BOOST_MPL_AUX_NTTP_DECL(long, C_) > // 'long' is intentional here

 struct not_impl

     : bool_<!C_>

 {

 };

 } // namespace aux

 template<

       typename BOOST_MPL_AUX_NA_PARAM(T)

     >

 struct not_

     : aux::not_impl<

           BOOST_MPL_AUX_NESTED_TYPE_WKND(T)::value

         >

 {

     BOOST_MPL_AUX_LAMBDA_SUPPORT(1,not_,(T))

 };

 BOOST_MPL_AUX_NA_SPEC(1,not_)

 }}

 #endif // BOOST_MPL_NOT_HPP_INCLUDED