1
2 // NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION
3
4 #if !defined(BOOST_PP_IS_ITERATING)
5
6 // Copyright Aleksey Gurtovoy 2000-2004
7 //
8 // Distributed under the Boost Software License, Version 1.0.
9 // (See accompanying file LICENSE_1_0.txt or copy at
10 // http://www.boost.org/LICENSE_1_0.txt)
11 //
12 // See http://www.boost.org/libs/mpl for documentation.
13
14 // $Id$
15 // $Date$
16 // $Revision$
17
18 #else
19
20 #include <boost/mpl/aux_/config/typeof.hpp>
21 #include <boost/mpl/aux_/config/ctps.hpp>
22 #include <boost/preprocessor/enum_params.hpp>
23 #include <boost/preprocessor/dec.hpp>
24 #include <boost/preprocessor/cat.hpp>
25
26 #define i_ BOOST_PP_FRAME_ITERATION(1)
27
28 # define AUX778076_MAP_TAIL(map, i_, P) \
29 BOOST_PP_CAT(map,i_)< \
30 BOOST_PP_ENUM_PARAMS(i_, P) \
31 > \
32 /**/
33
34
35 #if defined(BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES)
36
37 template<
38 BOOST_PP_ENUM_PARAMS(i_, typename P)
39 >
BOOST_PP_CAT(map,i_)40 struct BOOST_PP_CAT(map,i_)
41 : m_item<
42 typename BOOST_PP_CAT(P,BOOST_PP_DEC(i_))::first
43 , typename BOOST_PP_CAT(P,BOOST_PP_DEC(i_))::second
44 , AUX778076_MAP_TAIL(map,BOOST_PP_DEC(i_),P)
45 >
46 {
47 typedef BOOST_PP_CAT(map,i_) type;
48 };
49
50 #else // "brute force" implementation
51
52 # if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
53
54 template< typename Map>
55 struct m_at<Map,BOOST_PP_DEC(i_)>
56 {
57 typedef typename Map::BOOST_PP_CAT(item,BOOST_PP_DEC(i_)) type;
58 };
59
60 template< typename Key, typename T, typename Base >
61 struct m_item<i_,Key,T,Base>
62 : m_item_<Key,T,Base>
63 {
64 typedef pair<Key,T> BOOST_PP_CAT(item,BOOST_PP_DEC(i_));
65 };
66
67 # else
68
69 template<>
70 struct m_at_impl<BOOST_PP_DEC(i_)>
71 {
72 template< typename Map > struct result_
73 {
74 typedef typename Map::BOOST_PP_CAT(item,BOOST_PP_DEC(i_)) type;
75 };
76 };
77
78 template<>
79 struct m_item_impl<i_>
80 {
81 template< typename Key, typename T, typename Base > struct result_
82 : m_item_<Key,T,Base>
83 {
84 typedef pair<Key,T> BOOST_PP_CAT(item,BOOST_PP_DEC(i_));
85 };
86 };
87
88 # endif
89
90 template<
91 BOOST_PP_ENUM_PARAMS(i_, typename P)
92 >
BOOST_PP_CAT(map,i_)93 struct BOOST_PP_CAT(map,i_)
94 : m_item<
95 i_
96 , typename BOOST_PP_CAT(P,BOOST_PP_DEC(i_))::first
97 , typename BOOST_PP_CAT(P,BOOST_PP_DEC(i_))::second
98 , AUX778076_MAP_TAIL(map,BOOST_PP_DEC(i_),P)
99 >
100 {
101 typedef BOOST_PP_CAT(map,i_) type;
102 };
103
104 #endif // BOOST_MPL_CFG_TYPEOF_BASED_SEQUENCES
105
106 # undef AUX778076_MAP_TAIL
107
108 #undef i_
109
110 #endif // BOOST_PP_IS_ITERATING
111