| Jeff Thompson | a28eed8 | 2013-08-22 16:21:10 -0700 | [diff] [blame] | 1 | |
| 2 | #ifndef BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED |
| 3 | #define BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED |
| 4 | |
| 5 | // Copyright Aleksey Gurtovoy 2000-2004 |
| 6 | // |
| 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) |
| 10 | // |
| 11 | // See http://www.boost.org/libs/mpl for documentation. |
| 12 | |
| 13 | // $Id: item.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ |
| 14 | // $Date: 2008-10-10 23:19:02 -0700 (Fri, 10 Oct 2008) $ |
| 15 | // $Revision: 49267 $ |
| 16 | |
| 17 | #include <ndnboost/mpl/long.hpp> |
| 18 | #include <ndnboost/mpl/void.hpp> |
| 19 | #include <ndnboost/mpl/next_prior.hpp> |
| 20 | #include <ndnboost/mpl/aux_/type_wrapper.hpp> |
| 21 | #include <ndnboost/mpl/aux_/config/typeof.hpp> |
| 22 | #include <ndnboost/mpl/aux_/config/ctps.hpp> |
| 23 | |
| 24 | namespace ndnboost { namespace mpl { |
| 25 | |
| 26 | #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES) |
| 27 | |
| 28 | template< |
| 29 | typename T |
| 30 | , typename Base |
| 31 | , int at_front = 0 |
| 32 | > |
| 33 | struct v_item |
| 34 | : Base |
| 35 | { |
| 36 | typedef typename Base::upper_bound_ index_; |
| 37 | typedef typename next<index_>::type upper_bound_; |
| 38 | typedef typename next<typename Base::size>::type size; |
| 39 | typedef Base base; |
| 40 | typedef v_item type; |
| 41 | |
| 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_); |
| 45 | using Base::item_; |
| 46 | }; |
| 47 | |
| 48 | template< |
| 49 | typename T |
| 50 | , typename Base |
| 51 | > |
| 52 | struct v_item<T,Base,1> |
| 53 | : Base |
| 54 | { |
| 55 | typedef typename prior<typename Base::lower_bound_>::type index_; |
| 56 | typedef index_ lower_bound_; |
| 57 | typedef typename next<typename Base::size>::type size; |
| 58 | typedef Base base; |
| 59 | typedef v_item type; |
| 60 | |
| 61 | static aux::type_wrapper<T> item_(index_); |
| 62 | using Base::item_; |
| 63 | }; |
| 64 | |
| 65 | // "erasure" item |
| 66 | template< |
| 67 | typename Base |
| 68 | , int at_front |
| 69 | > |
| 70 | struct v_mask |
| 71 | : Base |
| 72 | { |
| 73 | typedef typename prior<typename Base::upper_bound_>::type index_; |
| 74 | typedef index_ upper_bound_; |
| 75 | typedef typename prior<typename Base::size>::type size; |
| 76 | typedef Base base; |
| 77 | typedef v_mask type; |
| 78 | |
| 79 | static aux::type_wrapper<void_> item_(index_); |
| 80 | using Base::item_; |
| 81 | }; |
| 82 | |
| 83 | template< |
| 84 | typename Base |
| 85 | > |
| 86 | struct v_mask<Base,1> |
| 87 | : Base |
| 88 | { |
| 89 | typedef typename Base::lower_bound_ index_; |
| 90 | typedef typename next<index_>::type lower_bound_; |
| 91 | typedef typename prior<typename Base::size>::type size; |
| 92 | typedef Base base; |
| 93 | typedef v_mask type; |
| 94 | |
| 95 | static aux::type_wrapper<void_> item_(index_); |
| 96 | using Base::item_; |
| 97 | }; |
| 98 | |
| 99 | #endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES |
| 100 | |
| 101 | }} |
| 102 | |
| 103 | #endif // BOOST_MPL_VECTOR_AUX_ITEM_HPP_INCLUDED |