2 #ifndef BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED
3 #define BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED
5 // Copyright Aleksey Gurtovoy 2000-2004
7 // Distributed under the Boost Software License, Version 1.0.
8 // (See accompanying file LICENSE_1_0.txt or copy at
9 // http://www.boost.org/LICENSE_1_0.txt)
11 // See http://www.boost.org/libs/mpl for documentation.
13 // $Source: /cvsroot/boost/boost/boost/mpl/vector/aux_/item.hpp,v $
14 // $Date: 2005/05/15 00:39:04 $
17 #include <boost/mpl/long.hpp>
18 #include <boost/mpl/void.hpp>
19 #include <boost/mpl/next_prior.hpp>
20 #include <boost/mpl/aux_/type_wrapper.hpp>
21 #include <boost/mpl/aux_/config/typeof.hpp>
22 #include <boost/mpl/aux_/config/ctps.hpp>
24 namespace boost { namespace mpl {
26 #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)
36 typedef typename Base::upper_bound_ index_;
37 typedef typename next<index_>::type upper_bound_;
38 typedef typename next<typename Base::size>::type size;
42 // agurt 10/sep/04: MWCW <= 9.3 workaround here and below; the compiler
43 // breaks if using declaration comes _before_ the new overload
44 static aux::type_wrapper<T> item_(index_);
52 struct v_item<T,Base,1>
55 typedef typename prior<typename Base::lower_bound_>::type index_;
56 typedef index_ lower_bound_;
57 typedef typename next<typename Base::size>::type size;
61 static aux::type_wrapper<T> item_(index_);
73 typedef typename prior<typename Base::upper_bound_>::type index_;
74 typedef index_ upper_bound_;
75 typedef typename prior<typename Base::size>::type size;
79 static aux::type_wrapper<void_> item_(index_);
89 typedef typename Base::lower_bound_ index_;
90 typedef typename next<index_>::type lower_bound_;
91 typedef typename prior<typename Base::size>::type size;
95 static aux::type_wrapper<void_> item_(index_);
99 #endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES
103 #endif // BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED