list/aux_/item.hpp

0001
0002 #ifndef BOOST_MPL_LIST_AUX_NODE_HPP_INCLUDED
0003 #define BOOST_MPL_LIST_AUX_NODE_HPP_INCLUDED
0004
0005 // Copyright Aleksey Gurtovoy 2000-2004
0006 //
0007 // Distributed under the Boost Software License, Version 1.0.
0008 // (See accompanying file LICENSE_1_0.txt or copy at
0009 // http://www.boost.org/LICENSE_1_0.txt)
0010 //
0011 // See http://www.boost.org/libs/mpl for documentation.
0012
0013 // $Id$
0014 // $Date$
0015 // $Revision$
0016
0017 #include <boost/mpl/long.hpp>
0018 #include <boost/mpl/list/aux_/tag.hpp>
0019 #include <boost/mpl/aux_/config/msvc.hpp>
0020 #include <boost/mpl/aux_/config/workaround.hpp>
0021
0022 namespace boost { namespace mpl {
0023
0024 template<
0025       typename Size
0026     , typename T
0027     , typename Next
0028     >
0029 struct l_item
0030 {
0031 // agurt, 17/jul/03: to facilitate the deficient 'is_sequence' implementation
0032 #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
0033     typedef int begin;
0034 #endif
0035     typedef aux::list_tag tag;
0036     typedef l_item type;
0037
0038     typedef Size size;
0039     typedef T item;
0040     typedef Next next;
0041 };
0042
0043 struct l_end
0044 {
0045 #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
0046     typedef int begin;
0047 #endif
0048     typedef aux::list_tag tag;
0049     typedef l_end type;
0050     typedef long_<0> size;
0051 };
0052
0053 }}
0054
0055 #endif // BOOST_MPL_LIST_AUX_NODE_HPP_INCLUDED