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1 | |
2 | #if !defined(BOOST_PP_IS_ITERATING) | |
3 | ||
4 | ///// header body | |
5 | ||
6 | // NO INCLUDE GUARDS, THE HEADER IS INTENDED FOR MULTIPLE INCLUSION! | |
7 | ||
8 | // Copyright Aleksey Gurtovoy 2000-2004 | |
9 | // | |
10 | // Distributed under the Boost Software License, Version 1.0. | |
11 | // (See accompanying file LICENSE_1_0.txt or copy at | |
12 | // http://www.boost.org/LICENSE_1_0.txt) | |
13 | // | |
14 | // See http://www.boost.org/libs/mpl for documentation. | |
15 | ||
16 | // $Id$ | |
17 | // $Date$ | |
18 | // $Revision$ | |
19 | ||
20 | #if !defined(BOOST_MPL_PREPROCESSING_MODE) | |
21 | # include <boost/mpl/numeric_cast.hpp> | |
22 | # include <boost/mpl/apply_wrap.hpp> | |
23 | # include <boost/mpl/if.hpp> | |
24 | # include <boost/mpl/tag.hpp> | |
25 | # include <boost/mpl/aux_/numeric_cast_utils.hpp> | |
26 | # include <boost/mpl/aux_/na.hpp> | |
27 | # include <boost/mpl/aux_/na_spec.hpp> | |
28 | # include <boost/mpl/aux_/lambda_support.hpp> | |
29 | # include <boost/mpl/aux_/msvc_eti_base.hpp> | |
30 | # include <boost/mpl/aux_/value_wknd.hpp> | |
31 | # include <boost/mpl/aux_/config/eti.hpp> | |
32 | # include <boost/mpl/aux_/nttp_decl.hpp> | |
33 | #endif | |
34 | ||
35 | #include <boost/mpl/aux_/config/static_constant.hpp> | |
36 | ||
37 | #if defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \ | |
38 | || defined(BOOST_MPL_PREPROCESSING_MODE) | |
39 | ||
40 | # include <boost/mpl/limits/arity.hpp> | |
41 | # include <boost/mpl/aux_/preprocessor/partial_spec_params.hpp> | |
42 | # include <boost/mpl/aux_/preprocessor/def_params_tail.hpp> | |
43 | # include <boost/mpl/aux_/preprocessor/repeat.hpp> | |
44 | # include <boost/mpl/aux_/preprocessor/ext_params.hpp> | |
45 | # include <boost/mpl/aux_/preprocessor/params.hpp> | |
46 | # include <boost/mpl/aux_/preprocessor/enum.hpp> | |
47 | # include <boost/mpl/aux_/preprocessor/add.hpp> | |
48 | # include <boost/mpl/aux_/preprocessor/sub.hpp> | |
49 | # include <boost/mpl/aux_/config/ctps.hpp> | |
50 | # include <boost/mpl/aux_/config/eti.hpp> | |
51 | # include <boost/mpl/aux_/config/msvc.hpp> | |
52 | # include <boost/mpl/aux_/config/workaround.hpp> | |
53 | ||
54 | # include <boost/preprocessor/dec.hpp> | |
55 | # include <boost/preprocessor/inc.hpp> | |
56 | # include <boost/preprocessor/iterate.hpp> | |
57 | # include <boost/preprocessor/cat.hpp> | |
58 | ||
59 | ||
60 | #if !defined(AUX778076_OP_ARITY) | |
61 | # define AUX778076_OP_ARITY BOOST_MPL_LIMIT_METAFUNCTION_ARITY | |
62 | #endif | |
63 | ||
64 | #if !defined(AUX778076_OP_IMPL_NAME) | |
65 | # define AUX778076_OP_IMPL_NAME BOOST_PP_CAT(AUX778076_OP_PREFIX,_impl) | |
66 | #endif | |
67 | ||
68 | #if !defined(AUX778076_OP_TAG_NAME) | |
69 | # define AUX778076_OP_TAG_NAME BOOST_PP_CAT(AUX778076_OP_PREFIX,_tag) | |
70 | #endif | |
71 | ||
72 | namespace boost { namespace mpl { | |
73 | ||
74 | template< | |
75 | typename Tag1 | |
76 | , typename Tag2 | |
77 | #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) | |
78 | , BOOST_MPL_AUX_NTTP_DECL(int, tag1_) = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag1)::value | |
79 | , BOOST_MPL_AUX_NTTP_DECL(int, tag2_) = BOOST_MPL_AUX_MSVC_VALUE_WKND(Tag2)::value | |
80 | > | |
81 | struct AUX778076_OP_IMPL_NAME | |
82 | : if_c< | |
83 | ( tag1_ > tag2_ ) | |
84 | #else | |
85 | > | |
86 | struct AUX778076_OP_IMPL_NAME | |
87 | : if_c< | |
88 | ( BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag1) | |
89 | > BOOST_MPL_AUX_NESTED_VALUE_WKND(int, Tag2) | |
90 | ) | |
91 | #endif | |
92 | , aux::cast2nd_impl< AUX778076_OP_IMPL_NAME<Tag1,Tag1>,Tag1,Tag2 > | |
93 | , aux::cast1st_impl< AUX778076_OP_IMPL_NAME<Tag2,Tag2>,Tag1,Tag2 > | |
94 | >::type | |
95 | { | |
96 | }; | |
97 | ||
98 | /// for Digital Mars C++/compilers with no CTPS/TTP support | |
99 | template<> struct AUX778076_OP_IMPL_NAME<na,na> | |
100 | { | |
101 | template< typename U1, typename U2 > struct apply | |
102 | { | |
103 | typedef apply type; | |
104 | BOOST_STATIC_CONSTANT(int, value = 0); | |
105 | }; | |
106 | }; | |
107 | ||
108 | #if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) | |
109 | template< typename Tag > struct AUX778076_OP_IMPL_NAME<na,Tag> | |
110 | { | |
111 | template< typename U1, typename U2 > struct apply | |
112 | { | |
113 | typedef apply type; | |
114 | BOOST_STATIC_CONSTANT(int, value = 0); | |
115 | }; | |
116 | }; | |
117 | ||
118 | template< typename Tag > struct AUX778076_OP_IMPL_NAME<Tag,na> | |
119 | { | |
120 | template< typename U1, typename U2 > struct apply | |
121 | { | |
122 | typedef apply type; | |
123 | BOOST_STATIC_CONSTANT(int, value = 0); | |
124 | }; | |
125 | }; | |
126 | #else | |
127 | template<> struct AUX778076_OP_IMPL_NAME<na,integral_c_tag> | |
128 | { | |
129 | template< typename U1, typename U2 > struct apply | |
130 | { | |
131 | typedef apply type; | |
132 | BOOST_STATIC_CONSTANT(int, value = 0); | |
133 | }; | |
134 | }; | |
135 | ||
136 | template<> struct AUX778076_OP_IMPL_NAME<integral_c_tag,na> | |
137 | { | |
138 | template< typename U1, typename U2 > struct apply | |
139 | { | |
140 | typedef apply type; | |
141 | BOOST_STATIC_CONSTANT(int, value = 0); | |
142 | }; | |
143 | }; | |
144 | #endif | |
145 | ||
146 | ||
147 | #if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) \ | |
148 | && BOOST_WORKAROUND(BOOST_MSVC, >= 1300) | |
149 | template< typename T > struct AUX778076_OP_TAG_NAME | |
150 | : tag<T,na> | |
151 | { | |
152 | }; | |
153 | #else | |
154 | template< typename T > struct AUX778076_OP_TAG_NAME | |
155 | { | |
156 | typedef typename T::tag type; | |
157 | }; | |
158 | #endif | |
159 | ||
160 | ||
161 | #if AUX778076_OP_ARITY != 2 | |
162 | ||
163 | # if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) | |
164 | ||
165 | # define AUX778076_OP_RIGHT_OPERAND(unused, i, N) , BOOST_PP_CAT(N, BOOST_MPL_PP_ADD(i, 2))> | |
166 | # define AUX778076_OP_N_CALLS(i, N) \ | |
167 | BOOST_MPL_PP_REPEAT( BOOST_PP_DEC(i), BOOST_MPL_PP_REPEAT_IDENTITY_FUNC, AUX778076_OP_NAME< ) \ | |
168 | N1 BOOST_MPL_PP_REPEAT( BOOST_MPL_PP_SUB(i, 1), AUX778076_OP_RIGHT_OPERAND, N ) \ | |
169 | /**/ | |
170 | ||
171 | template< | |
172 | typename BOOST_MPL_AUX_NA_PARAM(N1) | |
173 | , typename BOOST_MPL_AUX_NA_PARAM(N2) | |
174 | BOOST_MPL_PP_DEF_PARAMS_TAIL(2, typename N, na) | |
175 | > | |
176 | struct AUX778076_OP_NAME | |
177 | : AUX778076_OP_N_CALLS(AUX778076_OP_ARITY, N) | |
178 | { | |
179 | BOOST_MPL_AUX_LAMBDA_SUPPORT( | |
180 | AUX778076_OP_ARITY | |
181 | , AUX778076_OP_NAME | |
182 | , ( BOOST_MPL_PP_PARAMS(AUX778076_OP_ARITY, N) ) | |
183 | ) | |
184 | }; | |
185 | ||
186 | #define BOOST_PP_ITERATION_PARAMS_1 \ | |
187 | (3,( BOOST_PP_DEC(AUX778076_OP_ARITY), 2, <boost/mpl/aux_/numeric_op.hpp> )) | |
188 | #include BOOST_PP_ITERATE() | |
189 | ||
190 | # undef AUX778076_OP_N_CALLS | |
191 | # undef AUX778076_OP_RIGHT_OPERAND | |
192 | ||
193 | # else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION | |
194 | ||
195 | /// forward declaration | |
196 | template< | |
197 | typename BOOST_MPL_AUX_NA_PARAM(N1) | |
198 | , typename BOOST_MPL_AUX_NA_PARAM(N2) | |
199 | > | |
200 | struct BOOST_PP_CAT(AUX778076_OP_NAME,2); | |
201 | ||
202 | template< | |
203 | typename BOOST_MPL_AUX_NA_PARAM(N1) | |
204 | , typename BOOST_MPL_AUX_NA_PARAM(N2) | |
205 | BOOST_MPL_PP_DEF_PARAMS_TAIL(2, typename N, na) | |
206 | > | |
207 | struct AUX778076_OP_NAME | |
208 | #if BOOST_WORKAROUND(BOOST_MSVC, == 1300) | |
209 | : aux::msvc_eti_base< typename if_< | |
210 | #else | |
211 | : if_< | |
212 | #endif | |
213 | is_na<N3> | |
214 | , BOOST_PP_CAT(AUX778076_OP_NAME,2)<N1,N2> | |
215 | , AUX778076_OP_NAME< | |
216 | BOOST_PP_CAT(AUX778076_OP_NAME,2)<N1,N2> | |
217 | , BOOST_MPL_PP_EXT_PARAMS(3, BOOST_PP_INC(AUX778076_OP_ARITY), N) | |
218 | > | |
219 | >::type | |
220 | #if BOOST_WORKAROUND(BOOST_MSVC, == 1300) | |
221 | > | |
222 | #endif | |
223 | { | |
224 | BOOST_MPL_AUX_LAMBDA_SUPPORT( | |
225 | AUX778076_OP_ARITY | |
226 | , AUX778076_OP_NAME | |
227 | , ( BOOST_MPL_PP_PARAMS(AUX778076_OP_ARITY, N) ) | |
228 | ) | |
229 | }; | |
230 | ||
231 | template< | |
232 | typename N1 | |
233 | , typename N2 | |
234 | > | |
235 | struct BOOST_PP_CAT(AUX778076_OP_NAME,2) | |
236 | ||
237 | #endif | |
238 | ||
239 | #else // AUX778076_OP_ARITY == 2 | |
240 | ||
241 | template< | |
242 | typename BOOST_MPL_AUX_NA_PARAM(N1) | |
243 | , typename BOOST_MPL_AUX_NA_PARAM(N2) | |
244 | > | |
245 | struct AUX778076_OP_NAME | |
246 | ||
247 | #endif | |
248 | ||
249 | #if !defined(BOOST_MPL_CFG_MSVC_ETI_BUG) | |
250 | : AUX778076_OP_IMPL_NAME< | |
251 | typename AUX778076_OP_TAG_NAME<N1>::type | |
252 | , typename AUX778076_OP_TAG_NAME<N2>::type | |
253 | >::template apply<N1,N2>::type | |
254 | #else | |
255 | : aux::msvc_eti_base< typename apply_wrap2< | |
256 | AUX778076_OP_IMPL_NAME< | |
257 | typename AUX778076_OP_TAG_NAME<N1>::type | |
258 | , typename AUX778076_OP_TAG_NAME<N2>::type | |
259 | > | |
260 | , N1 | |
261 | , N2 | |
262 | >::type >::type | |
263 | #endif | |
264 | { | |
265 | #if AUX778076_OP_ARITY != 2 | |
266 | ||
267 | # if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) | |
268 | BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC( | |
269 | AUX778076_OP_ARITY | |
270 | , AUX778076_OP_NAME | |
271 | , ( BOOST_MPL_PP_PARTIAL_SPEC_PARAMS(2, N, na) ) | |
272 | ) | |
273 | # else | |
274 | BOOST_MPL_AUX_LAMBDA_SUPPORT(2, BOOST_PP_CAT(AUX778076_OP_NAME,2), (N1, N2)) | |
275 | # endif | |
276 | ||
277 | #else | |
278 | BOOST_MPL_AUX_LAMBDA_SUPPORT(2, AUX778076_OP_NAME, (N1, N2)) | |
279 | #endif | |
280 | }; | |
281 | ||
282 | BOOST_MPL_AUX_NA_SPEC2(2, AUX778076_OP_ARITY, AUX778076_OP_NAME) | |
283 | ||
284 | }} | |
285 | ||
286 | #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS | |
287 | ||
288 | ///// iteration, depth == 1 | |
289 | ||
290 | // For gcc 4.4 compatability, we must include the | |
291 | // BOOST_PP_ITERATION_DEPTH test inside an #else clause. | |
292 | #else // BOOST_PP_IS_ITERATING | |
293 | #if BOOST_PP_ITERATION_DEPTH() == 1 | |
294 | ||
295 | # define i_ BOOST_PP_FRAME_ITERATION(1) | |
296 | ||
297 | template< | |
298 | BOOST_MPL_PP_PARAMS(i_, typename N) | |
299 | > | |
300 | struct AUX778076_OP_NAME<BOOST_MPL_PP_PARTIAL_SPEC_PARAMS(i_, N, na)> | |
301 | #if i_ != 2 | |
302 | : AUX778076_OP_N_CALLS(i_, N) | |
303 | { | |
304 | BOOST_MPL_AUX_LAMBDA_SUPPORT_SPEC( | |
305 | AUX778076_OP_ARITY | |
306 | , AUX778076_OP_NAME | |
307 | , ( BOOST_MPL_PP_PARTIAL_SPEC_PARAMS(i_, N, na) ) | |
308 | ) | |
309 | }; | |
310 | #endif | |
311 | ||
312 | # undef i_ | |
313 | ||
314 | #endif // BOOST_PP_ITERATION_DEPTH() | |
315 | #endif // BOOST_PP_IS_ITERATING |