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1 | |
2 | #if !defined(BOOST_PP_IS_ITERATING) | |
3 | ||
4 | ///// header body | |
5 | ||
6 | #ifndef BOOST_MPL_APPLY_HPP_INCLUDED | |
7 | #define BOOST_MPL_APPLY_HPP_INCLUDED | |
8 | ||
9 | // Copyright Aleksey Gurtovoy 2000-2004 | |
10 | // | |
11 | // Distributed under the Boost Software License, Version 1.0. | |
12 | // (See accompanying file LICENSE_1_0.txt or copy at | |
13 | // http://www.boost.org/LICENSE_1_0.txt) | |
14 | // | |
15 | // See http://www.boost.org/libs/mpl for documentation. | |
16 | ||
17 | // $Id$ | |
18 | // $Date$ | |
19 | // $Revision$ | |
20 | ||
21 | #if !defined(BOOST_MPL_PREPROCESSING_MODE) | |
22 | # include <boost/mpl/apply_fwd.hpp> | |
23 | # include <boost/mpl/apply_wrap.hpp> | |
24 | # include <boost/mpl/placeholders.hpp> | |
25 | # include <boost/mpl/lambda.hpp> | |
26 | # include <boost/mpl/aux_/na.hpp> | |
27 | # include <boost/mpl/aux_/lambda_support.hpp> | |
28 | #endif | |
29 | ||
30 | #include <boost/mpl/aux_/config/use_preprocessed.hpp> | |
31 | ||
32 | #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \ | |
33 | && !defined(BOOST_MPL_PREPROCESSING_MODE) | |
34 | ||
35 | # define BOOST_MPL_PREPROCESSED_HEADER apply.hpp | |
36 | # include <boost/mpl/aux_/include_preprocessed.hpp> | |
37 | ||
38 | #else | |
39 | ||
40 | # include <boost/mpl/limits/arity.hpp> | |
41 | # include <boost/mpl/aux_/preprocessor/params.hpp> | |
42 | # include <boost/mpl/aux_/preprocessor/default_params.hpp> | |
43 | # include <boost/mpl/aux_/preprocessor/partial_spec_params.hpp> | |
44 | # include <boost/mpl/aux_/preprocessor/enum.hpp> | |
45 | # include <boost/mpl/aux_/config/lambda.hpp> | |
46 | # include <boost/mpl/aux_/config/dtp.hpp> | |
47 | # include <boost/mpl/aux_/nttp_decl.hpp> | |
48 | # include <boost/mpl/aux_/config/eti.hpp> | |
49 | # include <boost/mpl/aux_/config/msvc.hpp> | |
50 | # include <boost/mpl/aux_/config/workaround.hpp> | |
51 | ||
52 | # include <boost/preprocessor/comma_if.hpp> | |
53 | # include <boost/preprocessor/inc.hpp> | |
54 | # include <boost/preprocessor/iterate.hpp> | |
55 | # include <boost/preprocessor/cat.hpp> | |
56 | ||
57 | namespace boost { namespace mpl { | |
58 | ||
59 | // local macros, #undef-ined at the end of the header | |
60 | # define AUX778076_APPLY_PARAMS(param) \ | |
61 | BOOST_MPL_PP_PARAMS( \ | |
62 | BOOST_MPL_LIMIT_METAFUNCTION_ARITY \ | |
63 | , param \ | |
64 | ) \ | |
65 | /**/ | |
66 | ||
67 | # define AUX778076_APPLY_DEF_PARAMS(param, value) \ | |
68 | BOOST_MPL_PP_DEFAULT_PARAMS( \ | |
69 | BOOST_MPL_LIMIT_METAFUNCTION_ARITY \ | |
70 | , param \ | |
71 | , value \ | |
72 | ) \ | |
73 | /**/ | |
74 | ||
75 | # define AUX778076_APPLY_N_PARAMS(n, param) \ | |
76 | BOOST_MPL_PP_PARAMS(n, param) \ | |
77 | /**/ | |
78 | ||
79 | # define AUX778076_APPLY_N_COMMA_PARAMS(n, param) \ | |
80 | BOOST_PP_COMMA_IF(n) \ | |
81 | BOOST_MPL_PP_PARAMS(n, param) \ | |
82 | /**/ | |
83 | ||
84 | # define AUX778076_APPLY_N_PARTIAL_SPEC_PARAMS(n, param, def) \ | |
85 | BOOST_PP_COMMA_IF(n) \ | |
86 | BOOST_MPL_PP_PARTIAL_SPEC_PARAMS(n, param, def) \ | |
87 | /**/ | |
88 | ||
89 | # define AUX778076_APPLY_N_SPEC_PARAMS(n, param) \ | |
90 | BOOST_MPL_PP_ENUM(BOOST_PP_INC(n), param) \ | |
91 | /**/ | |
92 | ||
93 | ||
94 | #define BOOST_PP_ITERATION_PARAMS_1 \ | |
95 | (3,(0, BOOST_MPL_LIMIT_METAFUNCTION_ARITY, <boost/mpl/apply.hpp>)) | |
96 | #include BOOST_PP_ITERATE() | |
97 | ||
98 | # if !defined(BOOST_MPL_CFG_NO_APPLY_TEMPLATE) | |
99 | // real C++ version is already taken care of | |
100 | # if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) | |
101 | ||
102 | namespace aux { | |
103 | // apply_count_args | |
104 | #define AUX778076_COUNT_ARGS_PREFIX apply | |
105 | #define AUX778076_COUNT_ARGS_DEFAULT na | |
106 | #define AUX778076_COUNT_ARGS_ARITY BOOST_MPL_LIMIT_METAFUNCTION_ARITY | |
107 | #include <boost/mpl/aux_/count_args.hpp> | |
108 | } | |
109 | ||
110 | ||
111 | template< | |
112 | typename F, AUX778076_APPLY_DEF_PARAMS(typename T, na) | |
113 | > | |
114 | struct apply | |
115 | : aux::apply_chooser< | |
116 | aux::apply_count_args< AUX778076_APPLY_PARAMS(T) >::value | |
117 | >::template result_< F, AUX778076_APPLY_PARAMS(T) >::type | |
118 | { | |
119 | }; | |
120 | ||
121 | # endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION | |
122 | # endif // BOOST_MPL_CFG_NO_APPLY_TEMPLATE | |
123 | ||
124 | # undef AUX778076_APPLY_N_SPEC_PARAMS | |
125 | # undef AUX778076_APPLY_N_PARTIAL_SPEC_PARAMS | |
126 | # undef AUX778076_APPLY_N_COMMA_PARAMS | |
127 | # undef AUX778076_APPLY_N_PARAMS | |
128 | # undef AUX778076_APPLY_DEF_PARAMS | |
129 | # undef AUX778076_APPLY_PARAMS | |
130 | ||
131 | }} | |
132 | ||
133 | #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS | |
134 | #endif // BOOST_MPL_APPLY_HPP_INCLUDED | |
135 | ||
136 | ///// iteration, depth == 1 | |
137 | ||
138 | // For gcc 4.4 compatability, we must include the | |
139 | // BOOST_PP_ITERATION_DEPTH test inside an #else clause. | |
140 | #else // BOOST_PP_IS_ITERATING | |
141 | #if BOOST_PP_ITERATION_DEPTH() == 1 | |
142 | ||
143 | # define i_ BOOST_PP_FRAME_ITERATION(1) | |
144 | ||
145 | template< | |
146 | typename F AUX778076_APPLY_N_COMMA_PARAMS(i_, typename T) | |
147 | > | |
148 | struct BOOST_PP_CAT(apply,i_) | |
149 | #if !BOOST_WORKAROUND(BOOST_MSVC, < 1300) | |
150 | : BOOST_PP_CAT(apply_wrap,i_)< | |
151 | typename lambda<F>::type | |
152 | AUX778076_APPLY_N_COMMA_PARAMS(i_, T) | |
153 | > | |
154 | { | |
155 | #else | |
156 | { | |
157 | typedef typename BOOST_PP_CAT(apply_wrap,i_)< | |
158 | typename lambda<F>::type | |
159 | AUX778076_APPLY_N_COMMA_PARAMS(i_, T) | |
160 | >::type type; | |
161 | #endif | |
162 | BOOST_MPL_AUX_LAMBDA_SUPPORT( | |
163 | BOOST_PP_INC(i_) | |
164 | , BOOST_PP_CAT(apply,i_) | |
165 | , (F AUX778076_APPLY_N_COMMA_PARAMS(i_,T)) | |
166 | ) | |
167 | }; | |
168 | ||
169 | ||
170 | #if defined(BOOST_MPL_CFG_MSVC_ETI_BUG) | |
171 | /// workaround for ETI bug | |
172 | template<> | |
173 | struct BOOST_PP_CAT(apply,i_)<AUX778076_APPLY_N_SPEC_PARAMS(i_, int)> | |
174 | { | |
175 | typedef int type; | |
176 | }; | |
177 | #endif | |
178 | ||
179 | # if !defined(BOOST_MPL_CFG_NO_APPLY_TEMPLATE) | |
180 | # if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) | |
181 | ||
182 | #if i_ == BOOST_MPL_LIMIT_METAFUNCTION_ARITY | |
183 | /// primary template (not a specialization!) | |
184 | template< | |
185 | typename F AUX778076_APPLY_N_COMMA_PARAMS(i_, typename T) | |
186 | > | |
187 | struct apply | |
188 | : BOOST_PP_CAT(apply,i_)< F AUX778076_APPLY_N_COMMA_PARAMS(i_, T) > | |
189 | { | |
190 | }; | |
191 | #else | |
192 | template< | |
193 | typename F AUX778076_APPLY_N_COMMA_PARAMS(i_, typename T) | |
194 | > | |
195 | struct apply< F AUX778076_APPLY_N_PARTIAL_SPEC_PARAMS(i_, T, na) > | |
196 | : BOOST_PP_CAT(apply,i_)< F AUX778076_APPLY_N_COMMA_PARAMS(i_, T) > | |
197 | { | |
198 | }; | |
199 | #endif | |
200 | ||
201 | # else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION | |
202 | ||
203 | #if !defined(BOOST_MPL_CFG_NO_APPLY_TEMPLATE) | |
204 | namespace aux { | |
205 | ||
206 | template<> | |
207 | struct apply_chooser<i_> | |
208 | { | |
209 | template< | |
210 | typename F, AUX778076_APPLY_PARAMS(typename T) | |
211 | > | |
212 | struct result_ | |
213 | { | |
214 | typedef BOOST_PP_CAT(apply,i_)< | |
215 | F AUX778076_APPLY_N_COMMA_PARAMS(i_, T) | |
216 | > type; | |
217 | }; | |
218 | }; | |
219 | ||
220 | } // namespace aux | |
221 | #endif | |
222 | ||
223 | # endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION | |
224 | # endif // BOOST_MPL_CFG_NO_APPLY_TEMPLATE | |
225 | ||
226 | # undef i_ | |
227 | ||
228 | #endif // BOOST_PP_ITERATION_DEPTH() | |
229 | #endif // BOOST_PP_IS_ITERATING |