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1 | |
2 | #if !defined(BOOST_PP_IS_ITERATING) | |
3 | ||
4 | ///// header body | |
5 | ||
6 | #ifndef BOOST_MPL_ARG_HPP_INCLUDED | |
7 | #define BOOST_MPL_ARG_HPP_INCLUDED | |
8 | ||
9 | // Copyright Peter Dimov 2001-2002 | |
10 | // Copyright Aleksey Gurtovoy 2001-2004 | |
11 | // | |
12 | // Distributed under the Boost Software License, Version 1.0. | |
13 | // (See accompanying file LICENSE_1_0.txt or copy at | |
14 | // http://www.boost.org/LICENSE_1_0.txt) | |
15 | // | |
16 | // See http://www.boost.org/libs/mpl for documentation. | |
17 | ||
18 | // $Id$ | |
19 | // $Date$ | |
20 | // $Revision$ | |
21 | ||
22 | #if !defined(BOOST_MPL_PREPROCESSING_MODE) | |
23 | # include <boost/mpl/arg_fwd.hpp> | |
24 | # include <boost/mpl/aux_/na.hpp> | |
25 | # include <boost/mpl/aux_/na_assert.hpp> | |
26 | # include <boost/mpl/aux_/arity_spec.hpp> | |
27 | # include <boost/mpl/aux_/arg_typedef.hpp> | |
28 | #endif | |
29 | ||
30 | #include <boost/mpl/aux_/config/static_constant.hpp> | |
31 | #include <boost/mpl/aux_/config/use_preprocessed.hpp> | |
32 | ||
33 | #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \ | |
34 | && !defined(BOOST_MPL_PREPROCESSING_MODE) | |
35 | ||
36 | # define BOOST_MPL_PREPROCESSED_HEADER arg.hpp | |
37 | # include <boost/mpl/aux_/include_preprocessed.hpp> | |
38 | ||
39 | #else | |
40 | ||
41 | # include <boost/mpl/limits/arity.hpp> | |
42 | # include <boost/mpl/aux_/preprocessor/default_params.hpp> | |
43 | # include <boost/mpl/aux_/preprocessor/params.hpp> | |
44 | # include <boost/mpl/aux_/config/lambda.hpp> | |
45 | # include <boost/mpl/aux_/config/dtp.hpp> | |
46 | # include <boost/mpl/aux_/nttp_decl.hpp> | |
47 | ||
48 | # include <boost/preprocessor/iterate.hpp> | |
49 | # include <boost/preprocessor/inc.hpp> | |
50 | # include <boost/preprocessor/cat.hpp> | |
51 | ||
52 | BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN | |
53 | ||
54 | // local macro, #undef-ined at the end of the header | |
55 | #if !defined(BOOST_MPL_CFG_NO_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES) | |
56 | # define AUX778076_ARG_N_DEFAULT_PARAMS(param,value) \ | |
57 | BOOST_MPL_PP_DEFAULT_PARAMS( \ | |
58 | BOOST_MPL_LIMIT_METAFUNCTION_ARITY \ | |
59 | , param \ | |
60 | , value \ | |
61 | ) \ | |
62 | /**/ | |
63 | #else | |
64 | # define AUX778076_ARG_N_DEFAULT_PARAMS(param,value) \ | |
65 | BOOST_MPL_PP_PARAMS( \ | |
66 | BOOST_MPL_LIMIT_METAFUNCTION_ARITY \ | |
67 | , param \ | |
68 | ) \ | |
69 | /**/ | |
70 | #endif | |
71 | ||
72 | #define BOOST_PP_ITERATION_PARAMS_1 \ | |
73 | (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/arg.hpp>)) | |
74 | #include BOOST_PP_ITERATE() | |
75 | ||
76 | ||
77 | # undef AUX778076_ARG_N_DEFAULT_PARAMS | |
78 | ||
79 | BOOST_MPL_AUX_NONTYPE_ARITY_SPEC(1,int,arg) | |
80 | ||
81 | BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE | |
82 | ||
83 | #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS | |
84 | #endif // BOOST_MPL_ARG_HPP_INCLUDED | |
85 | ||
86 | ///// iteration | |
87 | ||
88 | #else | |
89 | #define i_ BOOST_PP_FRAME_ITERATION(1) | |
90 | ||
91 | #if i_ > 0 | |
92 | ||
93 | template<> struct arg<i_> | |
94 | { | |
95 | BOOST_STATIC_CONSTANT(int, value = i_); | |
96 | typedef arg<BOOST_PP_INC(i_)> next; | |
97 | BOOST_MPL_AUX_ARG_TYPEDEF(na, tag) | |
98 | BOOST_MPL_AUX_ARG_TYPEDEF(na, type) | |
99 | ||
100 | template< | |
101 | AUX778076_ARG_N_DEFAULT_PARAMS(typename U, na) | |
102 | > | |
103 | struct apply | |
104 | { | |
105 | typedef BOOST_PP_CAT(U,i_) type; | |
106 | BOOST_MPL_AUX_ASSERT_NOT_NA(type); | |
107 | }; | |
108 | }; | |
109 | ||
110 | #else | |
111 | ||
112 | template<> struct arg<-1> | |
113 | { | |
114 | BOOST_STATIC_CONSTANT(int, value = -1); | |
115 | BOOST_MPL_AUX_ARG_TYPEDEF(na, tag) | |
116 | BOOST_MPL_AUX_ARG_TYPEDEF(na, type) | |
117 | ||
118 | template< | |
119 | AUX778076_ARG_N_DEFAULT_PARAMS(typename U, na) | |
120 | > | |
121 | struct apply | |
122 | { | |
123 | typedef U1 type; | |
124 | BOOST_MPL_AUX_ASSERT_NOT_NA(type); | |
125 | }; | |
126 | }; | |
127 | ||
128 | #endif // i_ > 0 | |
129 | ||
130 | #undef i_ | |
131 | #endif // BOOST_PP_IS_ITERATING |