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comparison DEPENDENCIES/generic/include/boost/mpl/assert.hpp @ 16:2665513ce2d3
Add boost headers
author | Chris Cannam |
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date | Tue, 05 Aug 2014 11:11:38 +0100 |
parents | |
children | c530137014c0 |
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1 | |
2 #ifndef BOOST_MPL_ASSERT_HPP_INCLUDED | |
3 #define BOOST_MPL_ASSERT_HPP_INCLUDED | |
4 | |
5 // Copyright Aleksey Gurtovoy 2000-2006 | |
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: assert.hpp 86514 2013-10-29 13:15:03Z bemandawes $ | |
14 // $Date: 2013-10-29 06:15:03 -0700 (Tue, 29 Oct 2013) $ | |
15 // $Revision: 86514 $ | |
16 | |
17 #include <boost/mpl/not.hpp> | |
18 #include <boost/mpl/aux_/value_wknd.hpp> | |
19 #include <boost/mpl/aux_/nested_type_wknd.hpp> | |
20 #include <boost/mpl/aux_/yes_no.hpp> | |
21 #include <boost/mpl/aux_/na.hpp> | |
22 #include <boost/mpl/aux_/adl_barrier.hpp> | |
23 | |
24 #include <boost/mpl/aux_/config/nttp.hpp> | |
25 #include <boost/mpl/aux_/config/dtp.hpp> | |
26 #include <boost/mpl/aux_/config/gcc.hpp> | |
27 #include <boost/mpl/aux_/config/msvc.hpp> | |
28 #include <boost/mpl/aux_/config/static_constant.hpp> | |
29 #include <boost/mpl/aux_/config/pp_counter.hpp> | |
30 #include <boost/mpl/aux_/config/workaround.hpp> | |
31 | |
32 #include <boost/preprocessor/cat.hpp> | |
33 | |
34 #include <boost/config.hpp> // make sure 'size_t' is placed into 'std' | |
35 #include <cstddef> | |
36 | |
37 #if BOOST_WORKAROUND(BOOST_MSVC, == 1700) | |
38 #include <boost/mpl/if.hpp> | |
39 #endif | |
40 | |
41 #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x610)) \ | |
42 || (BOOST_MPL_CFG_GCC != 0) \ | |
43 || BOOST_WORKAROUND(__IBMCPP__, <= 600) | |
44 # define BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES | |
45 #endif | |
46 | |
47 #if BOOST_WORKAROUND(__MWERKS__, < 0x3202) \ | |
48 || BOOST_WORKAROUND(__EDG_VERSION__, <= 238) \ | |
49 || BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x610)) \ | |
50 || BOOST_WORKAROUND(__DMC__, BOOST_TESTED_AT(0x840)) | |
51 # define BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER | |
52 #endif | |
53 | |
54 // agurt, 10/nov/06: use enums for Borland (which cannot cope with static constants) | |
55 // and GCC (which issues "unused variable" warnings when static constants are used | |
56 // at a function scope) | |
57 #if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x610)) \ | |
58 || (BOOST_MPL_CFG_GCC != 0) | |
59 # define BOOST_MPL_AUX_ASSERT_CONSTANT(T, expr) enum { expr } | |
60 #else | |
61 # define BOOST_MPL_AUX_ASSERT_CONSTANT(T, expr) BOOST_STATIC_CONSTANT(T, expr) | |
62 #endif | |
63 | |
64 | |
65 BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_OPEN | |
66 | |
67 struct failed {}; | |
68 | |
69 // agurt, 24/aug/04: MSVC 7.1 workaround here and below: return/accept | |
70 // 'assert<false>' by reference; can't apply it unconditionally -- apparently it | |
71 // degrades the quality of GCC diagnostics | |
72 #if BOOST_WORKAROUND(BOOST_MSVC, == 1310) | |
73 # define AUX778076_ASSERT_ARG(x) x& | |
74 #else | |
75 # define AUX778076_ASSERT_ARG(x) x | |
76 #endif | |
77 | |
78 template< bool C > struct assert { typedef void* type; }; | |
79 template<> struct assert<false> { typedef AUX778076_ASSERT_ARG(assert) type; }; | |
80 | |
81 template< bool C > | |
82 int assertion_failed( typename assert<C>::type ); | |
83 | |
84 template< bool C > | |
85 struct assertion | |
86 { | |
87 static int failed( assert<false> ); | |
88 }; | |
89 | |
90 template<> | |
91 struct assertion<true> | |
92 { | |
93 static int failed( void* ); | |
94 }; | |
95 | |
96 struct assert_ | |
97 { | |
98 #if !defined(BOOST_MPL_CFG_NO_DEFAULT_PARAMETERS_IN_NESTED_TEMPLATES) | |
99 template< typename T1, typename T2 = na, typename T3 = na, typename T4 = na > struct types {}; | |
100 #endif | |
101 static assert_ const arg; | |
102 enum relations { equal = 1, not_equal, greater, greater_equal, less, less_equal }; | |
103 }; | |
104 | |
105 | |
106 #if !defined(BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES) | |
107 | |
108 bool operator==( failed, failed ); | |
109 bool operator!=( failed, failed ); | |
110 bool operator>( failed, failed ); | |
111 bool operator>=( failed, failed ); | |
112 bool operator<( failed, failed ); | |
113 bool operator<=( failed, failed ); | |
114 | |
115 #if defined(__EDG_VERSION__) | |
116 template< bool (*)(failed, failed), long x, long y > struct assert_relation {}; | |
117 # define BOOST_MPL_AUX_ASSERT_RELATION(x, y, r) assert_relation<r,x,y> | |
118 #else | |
119 template< BOOST_MPL_AUX_NTTP_DECL(long, x), BOOST_MPL_AUX_NTTP_DECL(long, y), bool (*)(failed, failed) > | |
120 struct assert_relation {}; | |
121 # define BOOST_MPL_AUX_ASSERT_RELATION(x, y, r) assert_relation<x,y,r> | |
122 #endif | |
123 | |
124 #else // BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES | |
125 | |
126 boost::mpl::aux::weighted_tag<1>::type operator==( assert_, assert_ ); | |
127 boost::mpl::aux::weighted_tag<2>::type operator!=( assert_, assert_ ); | |
128 boost::mpl::aux::weighted_tag<3>::type operator>( assert_, assert_ ); | |
129 boost::mpl::aux::weighted_tag<4>::type operator>=( assert_, assert_ ); | |
130 boost::mpl::aux::weighted_tag<5>::type operator<( assert_, assert_ ); | |
131 boost::mpl::aux::weighted_tag<6>::type operator<=( assert_, assert_ ); | |
132 | |
133 template< assert_::relations r, long x, long y > struct assert_relation {}; | |
134 | |
135 #endif | |
136 | |
137 #if BOOST_WORKAROUND(BOOST_MSVC, == 1700) | |
138 | |
139 template<class Pred> | |
140 struct extract_assert_pred; | |
141 | |
142 template<class Pred> | |
143 struct extract_assert_pred<void(Pred)> { typedef Pred type; }; | |
144 | |
145 template<class Pred> | |
146 struct eval_assert { | |
147 typedef typename extract_assert_pred<Pred>::type P; | |
148 typedef typename P::type p_type; | |
149 typedef typename ::boost::mpl::if_c<p_type::value, | |
150 AUX778076_ASSERT_ARG(assert<false>), | |
151 failed ************ P::************ | |
152 >::type type; | |
153 }; | |
154 | |
155 template<class Pred> | |
156 struct eval_assert_not { | |
157 typedef typename extract_assert_pred<Pred>::type P; | |
158 typedef typename P::type p_type; | |
159 typedef typename ::boost::mpl::if_c<!p_type::value, | |
160 AUX778076_ASSERT_ARG(assert<false>), | |
161 failed ************ ::boost::mpl::not_<P>::************ | |
162 >::type type; | |
163 }; | |
164 | |
165 template< typename T > | |
166 T make_assert_arg(); | |
167 | |
168 #elif !defined(BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER) | |
169 | |
170 template< bool > struct assert_arg_pred_impl { typedef int type; }; | |
171 template<> struct assert_arg_pred_impl<true> { typedef void* type; }; | |
172 | |
173 template< typename P > struct assert_arg_pred | |
174 { | |
175 typedef typename P::type p_type; | |
176 typedef typename assert_arg_pred_impl< p_type::value >::type type; | |
177 }; | |
178 | |
179 template< typename P > struct assert_arg_pred_not | |
180 { | |
181 typedef typename P::type p_type; | |
182 BOOST_MPL_AUX_ASSERT_CONSTANT( bool, p = !p_type::value ); | |
183 typedef typename assert_arg_pred_impl<p>::type type; | |
184 }; | |
185 | |
186 template< typename Pred > | |
187 failed ************ (Pred::************ | |
188 assert_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type ) | |
189 ); | |
190 | |
191 template< typename Pred > | |
192 failed ************ (boost::mpl::not_<Pred>::************ | |
193 assert_not_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type ) | |
194 ); | |
195 | |
196 template< typename Pred > | |
197 AUX778076_ASSERT_ARG(assert<false>) | |
198 assert_arg( void (*)(Pred), typename assert_arg_pred_not<Pred>::type ); | |
199 | |
200 template< typename Pred > | |
201 AUX778076_ASSERT_ARG(assert<false>) | |
202 assert_not_arg( void (*)(Pred), typename assert_arg_pred<Pred>::type ); | |
203 | |
204 | |
205 #else // BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER | |
206 | |
207 template< bool c, typename Pred > struct assert_arg_type_impl | |
208 { | |
209 typedef failed ************ Pred::* mwcw83_wknd; | |
210 typedef mwcw83_wknd ************* type; | |
211 }; | |
212 | |
213 template< typename Pred > struct assert_arg_type_impl<true,Pred> | |
214 { | |
215 typedef AUX778076_ASSERT_ARG(assert<false>) type; | |
216 }; | |
217 | |
218 template< typename Pred > struct assert_arg_type | |
219 : assert_arg_type_impl< BOOST_MPL_AUX_VALUE_WKND(BOOST_MPL_AUX_NESTED_TYPE_WKND(Pred))::value, Pred > | |
220 { | |
221 }; | |
222 | |
223 template< typename Pred > | |
224 typename assert_arg_type<Pred>::type | |
225 assert_arg(void (*)(Pred), int); | |
226 | |
227 template< typename Pred > | |
228 typename assert_arg_type< boost::mpl::not_<Pred> >::type | |
229 assert_not_arg(void (*)(Pred), int); | |
230 | |
231 # if !defined(BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES) | |
232 template< long x, long y, bool (*r)(failed, failed) > | |
233 typename assert_arg_type_impl< false,BOOST_MPL_AUX_ASSERT_RELATION(x,y,r) >::type | |
234 assert_rel_arg( BOOST_MPL_AUX_ASSERT_RELATION(x,y,r) ); | |
235 # else | |
236 template< assert_::relations r, long x, long y > | |
237 typename assert_arg_type_impl< false,assert_relation<r,x,y> >::type | |
238 assert_rel_arg( assert_relation<r,x,y> ); | |
239 # endif | |
240 | |
241 #endif // BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER | |
242 | |
243 #undef AUX778076_ASSERT_ARG | |
244 | |
245 BOOST_MPL_AUX_ADL_BARRIER_NAMESPACE_CLOSE | |
246 | |
247 #if BOOST_WORKAROUND(BOOST_MSVC, == 1700) | |
248 | |
249 // BOOST_MPL_ASSERT((pred<x,...>)) | |
250 | |
251 #define BOOST_MPL_ASSERT(pred) \ | |
252 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
253 std::size_t \ | |
254 , BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
255 boost::mpl::assertion_failed<false>( \ | |
256 boost::mpl::make_assert_arg< \ | |
257 typename boost::mpl::eval_assert<void pred>::type \ | |
258 >() \ | |
259 ) \ | |
260 ) \ | |
261 ) \ | |
262 /**/ | |
263 | |
264 // BOOST_MPL_ASSERT_NOT((pred<x,...>)) | |
265 | |
266 #define BOOST_MPL_ASSERT_NOT(pred) \ | |
267 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
268 std::size_t \ | |
269 , BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
270 boost::mpl::assertion_failed<false>( \ | |
271 boost::mpl::make_assert_arg< \ | |
272 typename boost::mpl::eval_assert_not<void pred>::type \ | |
273 >() \ | |
274 ) \ | |
275 ) \ | |
276 ) \ | |
277 /**/ | |
278 | |
279 #else | |
280 | |
281 // BOOST_MPL_ASSERT((pred<x,...>)) | |
282 | |
283 #define BOOST_MPL_ASSERT(pred) \ | |
284 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
285 std::size_t \ | |
286 , BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
287 boost::mpl::assertion_failed<false>( \ | |
288 boost::mpl::assert_arg( (void (*) pred)0, 1 ) \ | |
289 ) \ | |
290 ) \ | |
291 ) \ | |
292 /**/ | |
293 | |
294 // BOOST_MPL_ASSERT_NOT((pred<x,...>)) | |
295 | |
296 #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) | |
297 # define BOOST_MPL_ASSERT_NOT(pred) \ | |
298 enum { \ | |
299 BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
300 boost::mpl::assertion<false>::failed( \ | |
301 boost::mpl::assert_not_arg( (void (*) pred)0, 1 ) \ | |
302 ) \ | |
303 ) \ | |
304 }\ | |
305 /**/ | |
306 #else | |
307 # define BOOST_MPL_ASSERT_NOT(pred) \ | |
308 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
309 std::size_t \ | |
310 , BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
311 boost::mpl::assertion_failed<false>( \ | |
312 boost::mpl::assert_not_arg( (void (*) pred)0, 1 ) \ | |
313 ) \ | |
314 ) \ | |
315 ) \ | |
316 /**/ | |
317 #endif | |
318 | |
319 #endif | |
320 | |
321 // BOOST_MPL_ASSERT_RELATION(x, ==|!=|<=|<|>=|>, y) | |
322 | |
323 #if defined(BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES) | |
324 | |
325 # if !defined(BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER) | |
326 // agurt, 9/nov/06: 'enum' below is a workaround for gcc 4.0.4/4.1.1 bugs #29522 and #29518 | |
327 # define BOOST_MPL_ASSERT_RELATION_IMPL(counter, x, rel, y) \ | |
328 enum { BOOST_PP_CAT(mpl_assert_rel_value,counter) = (x rel y) }; \ | |
329 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
330 std::size_t \ | |
331 , BOOST_PP_CAT(mpl_assertion_in_line_,counter) = sizeof( \ | |
332 boost::mpl::assertion_failed<BOOST_PP_CAT(mpl_assert_rel_value,counter)>( \ | |
333 (boost::mpl::failed ************ ( boost::mpl::assert_relation< \ | |
334 boost::mpl::assert_::relations( sizeof( \ | |
335 boost::mpl::assert_::arg rel boost::mpl::assert_::arg \ | |
336 ) ) \ | |
337 , x \ | |
338 , y \ | |
339 >::************)) 0 ) \ | |
340 ) \ | |
341 ) \ | |
342 /**/ | |
343 # else | |
344 # define BOOST_MPL_ASSERT_RELATION_IMPL(counter, x, rel, y) \ | |
345 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
346 std::size_t \ | |
347 , BOOST_PP_CAT(mpl_assert_rel,counter) = sizeof( \ | |
348 boost::mpl::assert_::arg rel boost::mpl::assert_::arg \ | |
349 ) \ | |
350 ); \ | |
351 BOOST_MPL_AUX_ASSERT_CONSTANT( bool, BOOST_PP_CAT(mpl_assert_rel_value,counter) = (x rel y) ); \ | |
352 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
353 std::size_t \ | |
354 , BOOST_PP_CAT(mpl_assertion_in_line_,counter) = sizeof( \ | |
355 boost::mpl::assertion_failed<BOOST_PP_CAT(mpl_assert_rel_value,counter)>( \ | |
356 boost::mpl::assert_rel_arg( boost::mpl::assert_relation< \ | |
357 boost::mpl::assert_::relations(BOOST_PP_CAT(mpl_assert_rel,counter)) \ | |
358 , x \ | |
359 , y \ | |
360 >() ) \ | |
361 ) \ | |
362 ) \ | |
363 ) \ | |
364 /**/ | |
365 # endif | |
366 | |
367 # define BOOST_MPL_ASSERT_RELATION(x, rel, y) \ | |
368 BOOST_MPL_ASSERT_RELATION_IMPL(BOOST_MPL_AUX_PP_COUNTER(), x, rel, y) \ | |
369 /**/ | |
370 | |
371 #else // !BOOST_MPL_CFG_ASSERT_USE_RELATION_NAMES | |
372 | |
373 # if defined(BOOST_MPL_CFG_ASSERT_BROKEN_POINTER_TO_POINTER_TO_MEMBER) | |
374 # define BOOST_MPL_ASSERT_RELATION(x, rel, y) \ | |
375 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
376 std::size_t \ | |
377 , BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
378 boost::mpl::assertion_failed<(x rel y)>( boost::mpl::assert_rel_arg( \ | |
379 boost::mpl::BOOST_MPL_AUX_ASSERT_RELATION(x,y,(&boost::mpl::operator rel))() \ | |
380 ) ) \ | |
381 ) \ | |
382 ) \ | |
383 /**/ | |
384 # else | |
385 # define BOOST_MPL_ASSERT_RELATION(x, rel, y) \ | |
386 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
387 std::size_t \ | |
388 , BOOST_PP_CAT(mpl_assertion_in_line_,BOOST_MPL_AUX_PP_COUNTER()) = sizeof( \ | |
389 boost::mpl::assertion_failed<(x rel y)>( (boost::mpl::failed ************ ( \ | |
390 boost::mpl::BOOST_MPL_AUX_ASSERT_RELATION(x,y,(&boost::mpl::operator rel))::************))0 ) \ | |
391 ) \ | |
392 ) \ | |
393 /**/ | |
394 # endif | |
395 | |
396 #endif | |
397 | |
398 | |
399 // BOOST_MPL_ASSERT_MSG( (pred<x,...>::value), USER_PROVIDED_MESSAGE, (types<x,...>) ) | |
400 | |
401 #if BOOST_WORKAROUND(__MWERKS__, BOOST_TESTED_AT(0x3202)) | |
402 # define BOOST_MPL_ASSERT_MSG_IMPL( counter, c, msg, types_ ) \ | |
403 struct msg; \ | |
404 typedef struct BOOST_PP_CAT(msg,counter) : boost::mpl::assert_ \ | |
405 { \ | |
406 using boost::mpl::assert_::types; \ | |
407 static boost::mpl::failed ************ (msg::************ assert_arg()) types_ \ | |
408 { return 0; } \ | |
409 } BOOST_PP_CAT(mpl_assert_arg,counter); \ | |
410 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
411 std::size_t \ | |
412 , BOOST_PP_CAT(mpl_assertion_in_line_,counter) = sizeof( \ | |
413 boost::mpl::assertion<(c)>::failed( BOOST_PP_CAT(mpl_assert_arg,counter)::assert_arg() ) \ | |
414 ) \ | |
415 ) \ | |
416 /**/ | |
417 #else | |
418 # define BOOST_MPL_ASSERT_MSG_IMPL( counter, c, msg, types_ ) \ | |
419 struct msg; \ | |
420 typedef struct BOOST_PP_CAT(msg,counter) : boost::mpl::assert_ \ | |
421 { \ | |
422 static boost::mpl::failed ************ (msg::************ assert_arg()) types_ \ | |
423 { return 0; } \ | |
424 } BOOST_PP_CAT(mpl_assert_arg,counter); \ | |
425 BOOST_MPL_AUX_ASSERT_CONSTANT( \ | |
426 std::size_t \ | |
427 , BOOST_PP_CAT(mpl_assertion_in_line_,counter) = sizeof( \ | |
428 boost::mpl::assertion_failed<(c)>( BOOST_PP_CAT(mpl_assert_arg,counter)::assert_arg() ) \ | |
429 ) \ | |
430 ) \ | |
431 /**/ | |
432 #endif | |
433 | |
434 #define BOOST_MPL_ASSERT_MSG( c, msg, types_ ) \ | |
435 BOOST_MPL_ASSERT_MSG_IMPL( BOOST_MPL_AUX_PP_COUNTER(), c, msg, types_ ) \ | |
436 /**/ | |
437 | |
438 #endif // BOOST_MPL_ASSERT_HPP_INCLUDED |