Chris@16: 
Chris@16: #ifndef BOOST_MPL_AUX_CONTAINS_IMPL_HPP_INCLUDED
Chris@16: #define BOOST_MPL_AUX_CONTAINS_IMPL_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Eric Friedman 2002
Chris@16: // Copyright Aleksey Gurtovoy 2004
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #include <boost/mpl/contains_fwd.hpp>
Chris@16: #include <boost/mpl/begin_end.hpp>
Chris@16: #include <boost/mpl/find.hpp>
Chris@16: #include <boost/mpl/not.hpp>
Chris@16: #include <boost/mpl/aux_/traits_lambda_spec.hpp>
Chris@16: #include <boost/mpl/aux_/config/forwarding.hpp>
Chris@16: #include <boost/mpl/aux_/config/static_constant.hpp>
Chris@16: 
Chris@16: #include <boost/type_traits/is_same.hpp>
Chris@16: 
Chris@16: namespace boost { namespace mpl {
Chris@16: 
Chris@16: template< typename Tag >
Chris@16: struct contains_impl
Chris@16: {
Chris@16:     template< typename Sequence, typename T > struct apply
Chris@16: #if !defined(BOOST_MPL_CFG_NO_NESTED_FORWARDING)
Chris@16:         : not_< is_same<
Chris@16:               typename find<Sequence,T>::type
Chris@16:             , typename end<Sequence>::type
Chris@16:             > >
Chris@16:     {
Chris@16: #else
Chris@16:     {
Chris@16:         typedef not_< is_same<
Chris@16:               typename find<Sequence,T>::type
Chris@16:             , typename end<Sequence>::type
Chris@16:             > > type;
Chris@16: 
Chris@16:         BOOST_STATIC_CONSTANT(bool, value = 
Chris@16:               (not_< is_same<
Chris@16:                   typename find<Sequence,T>::type
Chris@16:                 , typename end<Sequence>::type
Chris@16:                 > >::value)
Chris@16:             );
Chris@16: #endif
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: BOOST_MPL_ALGORITM_TRAITS_LAMBDA_SPEC(2,contains_impl)
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_AUX_CONTAINS_IMPL_HPP_INCLUDED