1 // Debugging support implementation -*- C++ -*-
2 
3 // Copyright (C) 2003-2019 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library.  This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10 
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 // GNU General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 /** @file debug/macros.h
26  *  This file is a GNU debug extension to the Standard C++ Library.
27  */
28 
29 #ifndef _GLIBCXX_DEBUG_MACROS_H
30 #define _GLIBCXX_DEBUG_MACROS_H 1
31 
32 /**
33  * Macros used by the implementation to verify certain
34  * properties. These macros may only be used directly by the debug
35  * wrappers. Note that these are macros (instead of the more obviously
36  * @a correct choice of making them functions) because we need line and
37  * file information at the call site, to minimize the distance between
38  * the user error and where the error is reported.
39  *
40  */
41 #define _GLIBCXX_DEBUG_VERIFY_COND_AT(_Cond,_ErrMsg,_File,_Line,_Func)	\
42   if (! (_Cond))							\
43     __gnu_debug::_Error_formatter::_S_at(_File, _Line, _Func)		\
44       ._ErrMsg._M_error()
45 
46 #define _GLIBCXX_DEBUG_VERIFY_AT_F(_Cond,_ErrMsg,_File,_Line,_Func)	\
47   do									\
48   {									\
49     _GLIBCXX_DEBUG_VERIFY_COND_AT(_Cond,_ErrMsg,_File,_Line,_Func);	\
50   } while (false)
51 
52 #define _GLIBCXX_DEBUG_VERIFY_AT(_Cond,_ErrMsg,_File,_Line)		\
53   _GLIBCXX_DEBUG_VERIFY_AT_F(_Cond,_ErrMsg,_File,_Line,__PRETTY_FUNCTION__)
54 
55 #define _GLIBCXX_DEBUG_VERIFY(_Cond,_ErrMsg)				\
56   _GLIBCXX_DEBUG_VERIFY_AT_F(_Cond, _ErrMsg, __FILE__, __LINE__,	\
57 			     __PRETTY_FUNCTION__)
58 
59 // Verify that [_First, _Last) forms a valid iterator range.
60 #define __glibcxx_check_valid_range(_First,_Last)			\
61 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__valid_range(_First, _Last),	\
62 		      _M_message(__gnu_debug::__msg_valid_range)	\
63 		      ._M_iterator(_First, #_First)			\
64 		      ._M_iterator(_Last, #_Last))
65 
66 #define __glibcxx_check_valid_range_at(_First,_Last,_File,_Line,_Func)	\
67 _GLIBCXX_DEBUG_VERIFY_AT_F(__gnu_debug::__valid_range(_First, _Last),	\
68 			   _M_message(__gnu_debug::__msg_valid_range)	\
69 			   ._M_iterator(_First, #_First)		\
70 			   ._M_iterator(_Last, #_Last),			\
71 			   _File,_Line,_Func)
72 
73 #define __glibcxx_check_valid_range2(_First,_Last,_Dist)		\
74 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__valid_range(_First, _Last, _Dist),	\
75 		      _M_message(__gnu_debug::__msg_valid_range)	\
76 		      ._M_iterator(_First, #_First)			\
77 		      ._M_iterator(_Last, #_Last))
78 
79 #define __glibcxx_check_valid_constructor_range(_First,_Last)		\
80   __gnu_debug::__check_valid_range(_First, _Last,			\
81 				   __FILE__, __LINE__, __PRETTY_FUNCTION__)
82 
83 // Verify that [_First, _Last) forms a non-empty iterator range.
84 #define __glibcxx_check_non_empty_range(_First,_Last)			\
85 _GLIBCXX_DEBUG_VERIFY(_First != _Last,					\
86 		      _M_message(__gnu_debug::__msg_non_empty_range)	\
87 		      ._M_iterator(_First, #_First)			\
88 		      ._M_iterator(_Last, #_Last))
89 
90 // Verify that [_First, _First + _Size) forms a valid range.
91 #define __glibcxx_check_can_increment(_First,_Size)			\
92 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__can_advance(_First, _Size),	\
93 		      _M_message(__gnu_debug::__msg_iter_subscript_oob)	\
94 		      ._M_iterator(_First, #_First)			\
95 		      ._M_integer(_Size, #_Size))
96 
97 #define __glibcxx_check_can_increment_range(_First1,_Last1,_First2)	\
98   do									\
99   {									\
100     typename __gnu_debug::_Distance_traits<__decltype(_First1)>::__type __dist;\
101     _GLIBCXX_DEBUG_VERIFY_COND_AT(					\
102 			__gnu_debug::__valid_range(_First1, _Last1, __dist),\
103 			_M_message(__gnu_debug::__msg_valid_range)	\
104 			._M_iterator(_First1, #_First1)			\
105 			._M_iterator(_Last1, #_Last1),			\
106 			__FILE__,__LINE__,__PRETTY_FUNCTION__);		\
107     _GLIBCXX_DEBUG_VERIFY_COND_AT(					\
108 			__gnu_debug::__can_advance(_First2, __dist.first),\
109 			_M_message(__gnu_debug::__msg_iter_subscript_oob)\
110 			._M_iterator(_First2, #_First2)			\
111 			._M_integer(__dist.first),			\
112 			__FILE__,__LINE__,__PRETTY_FUNCTION__);		\
113   } while(false)
114 
115 #define __glibcxx_check_can_decrement_range(_First1,_Last1,_First2)	\
116   do									\
117   {									\
118     typename __gnu_debug::_Distance_traits<__decltype(_First1)>::__type __dist;\
119     _GLIBCXX_DEBUG_VERIFY_COND_AT(					\
120 			__gnu_debug::__valid_range(_First1, _Last1, __dist),\
121 			_M_message(__gnu_debug::__msg_valid_range)	\
122 			._M_iterator(_First1, #_First1)			\
123 			._M_iterator(_Last1, #_Last1),			\
124 			__FILE__,__LINE__,__PRETTY_FUNCTION__);		\
125     _GLIBCXX_DEBUG_VERIFY_COND_AT(					\
126 			__gnu_debug::__can_advance(_First2, -__dist.first),\
127 			_M_message(__gnu_debug::__msg_iter_subscript_oob)\
128 			._M_iterator(_First2, #_First2)			\
129 			._M_integer(-__dist.first),			\
130 			__FILE__,__LINE__,__PRETTY_FUNCTION__);		\
131   } while(false)
132 
133 /** Verify that we can insert into *this with the iterator _Position.
134  *  Insertion into a container at a specific position requires that
135  *  the iterator be nonsingular, either dereferenceable or past-the-end,
136  *  and that it reference the sequence we are inserting into. Note that
137  *  this macro is only valid when the container is a_Safe_sequence and
138  *  the iterator is a _Safe_iterator.
139 */
140 #define __glibcxx_check_insert(_Position)				\
141 _GLIBCXX_DEBUG_VERIFY(!_Position._M_singular(),				\
142 		      _M_message(__gnu_debug::__msg_insert_singular)	\
143 		      ._M_sequence(*this, "this")			\
144 		      ._M_iterator(_Position, #_Position));		\
145 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this),			\
146 		      _M_message(__gnu_debug::__msg_insert_different)	\
147 		      ._M_sequence(*this, "this")			\
148 		      ._M_iterator(_Position, #_Position))
149 
150 /** Verify that we can insert into *this after the iterator _Position.
151  *  Insertion into a container after a specific position requires that
152  *  the iterator be nonsingular, either dereferenceable or before-begin,
153  *  and that it reference the sequence we are inserting into. Note that
154  *  this macro is only valid when the container is a_Safe_sequence and
155  *  the iterator is a _Safe_iterator.
156 */
157 #define __glibcxx_check_insert_after(_Position)				\
158 __glibcxx_check_insert(_Position);					\
159 _GLIBCXX_DEBUG_VERIFY(!_Position._M_is_end(),				\
160 		      _M_message(__gnu_debug::__msg_insert_after_end)	\
161 		      ._M_sequence(*this, "this")			\
162 		      ._M_iterator(_Position, #_Position))
163 
164 /** Verify that we can insert the values in the iterator range
165  *  [_First, _Last) into *this with the iterator _Position.  Insertion
166  *  into a container at a specific position requires that the iterator
167  *  be nonsingular (i.e., either dereferenceable or past-the-end),
168  *  that it reference the sequence we are inserting into, and that the
169  *  iterator range [_First, _Last) is a valid (possibly empty)
170  *  range which does not reference the sequence we are inserting into.
171  *  Note that this macro is only valid when the container is a
172  *  _Safe_sequence and the _Position iterator is a _Safe_iterator.
173 */
174 #define __glibcxx_check_insert_range(_Position,_First,_Last,_Dist)	\
175 __glibcxx_check_valid_range2(_First,_Last,_Dist);			\
176 __glibcxx_check_insert(_Position);					\
177 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__foreign_iterator(_Position,_First,_Last),\
178 		      _M_message(__gnu_debug::__msg_insert_range_from_self)\
179 		      ._M_iterator(_First, #_First)			\
180 		      ._M_iterator(_Last, #_Last)			\
181 		      ._M_sequence(*this, "this"))
182 
183 /** Verify that we can insert the values in the iterator range
184  *  [_First, _Last) into *this after the iterator _Position.  Insertion
185  *  into a container after a specific position requires that the iterator
186  *  be nonsingular (i.e., either dereferenceable or past-the-end),
187  *  that it reference the sequence we are inserting into, and that the
188  *  iterator range [_First, _Last) is a valid (possibly empty)
189  *  range which does not reference the sequence we are inserting into.
190  *  Note that this macro is only valid when the container is a
191  *  _Safe_sequence and the _Position iterator is a _Safe_iterator.
192 */
193 #define __glibcxx_check_insert_range_after(_Position,_First,_Last,_Dist)\
194 __glibcxx_check_valid_range2(_First,_Last,_Dist);			\
195 __glibcxx_check_insert_after(_Position);				\
196 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__foreign_iterator(_Position,_First,_Last),\
197 		      _M_message(__gnu_debug::__msg_insert_range_from_self)\
198 		      ._M_iterator(_First, #_First)			\
199 		      ._M_iterator(_Last, #_Last)			\
200 		      ._M_sequence(*this, "this"))
201 
202 /** Verify that we can erase the element referenced by the iterator
203  * _Position. We can erase the element if the _Position iterator is
204  * dereferenceable and references this sequence.
205 */
206 #define __glibcxx_check_erase(_Position)				\
207 _GLIBCXX_DEBUG_VERIFY(_Position._M_dereferenceable(),			\
208 		      _M_message(__gnu_debug::__msg_erase_bad)	        \
209                       ._M_sequence(*this, "this")			\
210 		      ._M_iterator(_Position, #_Position));		\
211 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this),			\
212 		      _M_message(__gnu_debug::__msg_erase_different)    \
213 		      ._M_sequence(*this, "this")			\
214 		      ._M_iterator(_Position, #_Position))
215 
216 /** Verify that we can erase the element after the iterator
217  * _Position. We can erase the element if the _Position iterator is
218  * before a dereferenceable one and references this sequence.
219 */
220 #define __glibcxx_check_erase_after(_Position)				\
221 _GLIBCXX_DEBUG_VERIFY(_Position._M_before_dereferenceable(),		\
222 		      _M_message(__gnu_debug::__msg_erase_after_bad)	\
223 		      ._M_sequence(*this, "this")			\
224 		      ._M_iterator(_Position, #_Position));		\
225 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this),			\
226 		      _M_message(__gnu_debug::__msg_erase_different)	\
227 		      ._M_sequence(*this, "this")			\
228 		      ._M_iterator(_Position, #_Position))
229 
230 /** Verify that we can erase the elements in the iterator range
231  *  [_First, _Last). We can erase the elements if [_First, _Last) is a
232  *  valid iterator range within this sequence.
233 */
234 #define __glibcxx_check_erase_range(_First,_Last)			\
235 __glibcxx_check_valid_range(_First,_Last);				\
236 _GLIBCXX_DEBUG_VERIFY(_First._M_attached_to(this),			\
237 		      _M_message(__gnu_debug::__msg_erase_different)    \
238                       ._M_sequence(*this, "this")			\
239 		      ._M_iterator(_First, #_First)			\
240 		      ._M_iterator(_Last, #_Last))
241 
242 /** Verify that we can erase the elements in the iterator range
243  *  (_First, _Last). We can erase the elements if (_First, _Last) is a
244  *  valid iterator range within this sequence.
245 */
246 #define __glibcxx_check_erase_range_after(_First,_Last)			\
247 _GLIBCXX_DEBUG_VERIFY(_First._M_can_compare(_Last),			\
248 		      _M_message(__gnu_debug::__msg_erase_different)	\
249 		      ._M_sequence(*this, "this")			\
250 		      ._M_iterator(_First, #_First)			\
251 		      ._M_iterator(_Last, #_Last));			\
252 _GLIBCXX_DEBUG_VERIFY(_First._M_attached_to(this),			\
253 		      _M_message(__gnu_debug::__msg_erase_different)	\
254 		      ._M_sequence(*this, "this")			\
255 		      ._M_iterator(_First, #_First));			\
256 _GLIBCXX_DEBUG_VERIFY(_First != _Last,					\
257 		      _M_message(__gnu_debug::__msg_valid_range2)	\
258 		      ._M_sequence(*this, "this")			\
259 		      ._M_iterator(_First, #_First)			\
260 		      ._M_iterator(_Last, #_Last));			\
261 _GLIBCXX_DEBUG_VERIFY(_First._M_incrementable(),			\
262 		      _M_message(__gnu_debug::__msg_valid_range2)	\
263 		      ._M_sequence(*this, "this")			\
264 		      ._M_iterator(_First, #_First)			\
265 		      ._M_iterator(_Last, #_Last));			\
266 _GLIBCXX_DEBUG_VERIFY(!_Last._M_is_before_begin(),			\
267 		      _M_message(__gnu_debug::__msg_valid_range2)	\
268 		      ._M_sequence(*this, "this")			\
269 		      ._M_iterator(_First, #_First)			\
270 		      ._M_iterator(_Last, #_Last))			\
271 
272 // Verify that the subscript _N is less than the container's size.
273 #define __glibcxx_check_subscript(_N)					\
274 _GLIBCXX_DEBUG_VERIFY(_N < this->size(),				\
275 		      _M_message(__gnu_debug::__msg_subscript_oob)	\
276                       ._M_sequence(*this, "this")			\
277 		      ._M_integer(_N, #_N)				\
278 		      ._M_integer(this->size(), "size"))
279 
280 // Verify that the bucket _N is less than the container's buckets count.
281 #define __glibcxx_check_bucket_index(_N)				\
282 _GLIBCXX_DEBUG_VERIFY(_N < this->bucket_count(),			\
283 		      _M_message(__gnu_debug::__msg_bucket_index_oob)	\
284                       ._M_sequence(*this, "this")			\
285 		      ._M_integer(_N, #_N)				\
286 		      ._M_integer(this->bucket_count(), "size"))
287 
288 // Verify that the container is nonempty
289 #define __glibcxx_check_nonempty()					\
290 _GLIBCXX_DEBUG_VERIFY(! this->empty(),					\
291 		      _M_message(__gnu_debug::__msg_empty)	        \
292                       ._M_sequence(*this, "this"))
293 
294 // Verify that the iterator range [_First, _Last) is sorted
295 #define __glibcxx_check_sorted(_First,_Last)				\
296 __glibcxx_check_valid_range(_First,_Last);				\
297  _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_sorted(			\
298 			__gnu_debug::__base(_First),			\
299 			__gnu_debug::__base(_Last)),			\
300 		      _M_message(__gnu_debug::__msg_unsorted)	        \
301                       ._M_iterator(_First, #_First)			\
302 		      ._M_iterator(_Last, #_Last))
303 
304 /** Verify that the iterator range [_First, _Last) is sorted by the
305     predicate _Pred. */
306 #define __glibcxx_check_sorted_pred(_First,_Last,_Pred)			\
307 __glibcxx_check_valid_range(_First,_Last);				\
308 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_sorted(			\
309 			__gnu_debug::__base(_First),			\
310 			__gnu_debug::__base(_Last), _Pred),		\
311 		      _M_message(__gnu_debug::__msg_unsorted_pred)      \
312                       ._M_iterator(_First, #_First)			\
313 		      ._M_iterator(_Last, #_Last)			\
314 		      ._M_string(#_Pred))
315 
316 // Special variant for std::merge, std::includes, std::set_*
317 #define __glibcxx_check_sorted_set(_First1,_Last1,_First2)		\
318 __glibcxx_check_valid_range(_First1,_Last1);				\
319 _GLIBCXX_DEBUG_VERIFY(                                                  \
320   __gnu_debug::__check_sorted_set(__gnu_debug::__base(_First1),		\
321 				  __gnu_debug::__base(_Last1), _First2),\
322   _M_message(__gnu_debug::__msg_unsorted)				\
323   ._M_iterator(_First1, #_First1)					\
324   ._M_iterator(_Last1, #_Last1))
325 
326 // Likewise with a _Pred.
327 #define __glibcxx_check_sorted_set_pred(_First1,_Last1,_First2,_Pred)	\
328 __glibcxx_check_valid_range(_First1,_Last1);        			\
329 _GLIBCXX_DEBUG_VERIFY(							\
330   __gnu_debug::__check_sorted_set(__gnu_debug::__base(_First1),		\
331 				  __gnu_debug::__base(_Last1),		\
332 				  _First2, _Pred),			\
333   _M_message(__gnu_debug::__msg_unsorted_pred)				\
334   ._M_iterator(_First1, #_First1)					\
335   ._M_iterator(_Last1, #_Last1)						\
336   ._M_string(#_Pred))
337 
338 /** Verify that the iterator range [_First, _Last) is partitioned
339     w.r.t. the value _Value. */
340 #define __glibcxx_check_partitioned_lower(_First,_Last,_Value)		\
341 __glibcxx_check_valid_range(_First,_Last);				\
342 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_lower(		\
343 			__gnu_debug::__base(_First),			\
344 			__gnu_debug::__base(_Last), _Value),		\
345 		      _M_message(__gnu_debug::__msg_unpartitioned)      \
346 		      ._M_iterator(_First, #_First)			\
347 		      ._M_iterator(_Last, #_Last)			\
348 		      ._M_string(#_Value))
349 
350 #define __glibcxx_check_partitioned_upper(_First,_Last,_Value)		\
351 __glibcxx_check_valid_range(_First,_Last);				\
352 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper(		\
353 			__gnu_debug::__base(_First),			\
354 			__gnu_debug::__base(_Last), _Value),		\
355 		      _M_message(__gnu_debug::__msg_unpartitioned)      \
356 		      ._M_iterator(_First, #_First)			\
357 		      ._M_iterator(_Last, #_Last)			\
358 		      ._M_string(#_Value))
359 
360 /** Verify that the iterator range [_First, _Last) is partitioned
361     w.r.t. the value _Value and predicate _Pred. */
362 #define __glibcxx_check_partitioned_lower_pred(_First,_Last,_Value,_Pred) \
363 __glibcxx_check_valid_range(_First,_Last);				\
364 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_lower(		\
365 			__gnu_debug::__base(_First),			\
366 			__gnu_debug::__base(_Last), _Value, _Pred),	\
367 		      _M_message(__gnu_debug::__msg_unpartitioned_pred) \
368 		      ._M_iterator(_First, #_First)			\
369 		      ._M_iterator(_Last, #_Last)			\
370 		      ._M_string(#_Pred)				\
371                       ._M_string(#_Value))
372 
373 /** Verify that the iterator range [_First, _Last) is partitioned
374     w.r.t. the value _Value and predicate _Pred. */
375 #define __glibcxx_check_partitioned_upper_pred(_First,_Last,_Value,_Pred) \
376 __glibcxx_check_valid_range(_First,_Last);				\
377 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper(		\
378 			__gnu_debug::__base(_First),			\
379 			__gnu_debug::__base(_Last), _Value, _Pred),	\
380 		      _M_message(__gnu_debug::__msg_unpartitioned_pred) \
381 		      ._M_iterator(_First, #_First)			\
382 		      ._M_iterator(_Last, #_Last)			\
383 		      ._M_string(#_Pred)				\
384                       ._M_string(#_Value))
385 
386 // Verify that the iterator range [_First, _Last) is a heap
387 #define __glibcxx_check_heap(_First,_Last)				\
388   _GLIBCXX_DEBUG_VERIFY(std::__is_heap(__gnu_debug::__base(_First),	\
389 				       __gnu_debug::__base(_Last)),	\
390 		      _M_message(__gnu_debug::__msg_not_heap)	        \
391 		      ._M_iterator(_First, #_First)			\
392 		      ._M_iterator(_Last, #_Last))
393 
394 /** Verify that the iterator range [_First, _Last) is a heap
395     w.r.t. the predicate _Pred. */
396 #define __glibcxx_check_heap_pred(_First,_Last,_Pred)			\
397   _GLIBCXX_DEBUG_VERIFY(std::__is_heap(__gnu_debug::__base(_First),	\
398 				       __gnu_debug::__base(_Last),	\
399 				       _Pred),				\
400 		      _M_message(__gnu_debug::__msg_not_heap_pred)      \
401                       ._M_iterator(_First, #_First)			\
402 		      ._M_iterator(_Last, #_Last)			\
403 		      ._M_string(#_Pred))
404 
405 // Verify that the container is not self move assigned
406 #define __glibcxx_check_self_move_assign(_Other)			\
407 _GLIBCXX_DEBUG_VERIFY(this != &_Other,					\
408 		      _M_message(__gnu_debug::__msg_self_move_assign)	\
409                       ._M_sequence(*this, "this"))
410 
411 // Verify that load factor is positive
412 #define __glibcxx_check_max_load_factor(_F)				\
413 _GLIBCXX_DEBUG_VERIFY(_F > 0.0f,					\
414 		      _M_message(__gnu_debug::__msg_valid_load_factor)	\
415                       ._M_sequence(*this, "this"))
416 
417 #define __glibcxx_check_equal_allocs(_This, _Other)			\
418 _GLIBCXX_DEBUG_VERIFY(_This.get_allocator() == _Other.get_allocator(),	\
419 		      _M_message(__gnu_debug::__msg_equal_allocs)	\
420 		      ._M_sequence(_This, "this"))
421 
422 #define __glibcxx_check_string(_String) _GLIBCXX_DEBUG_PEDASSERT(_String != 0)
423 #define __glibcxx_check_string_len(_String,_Len) \
424   _GLIBCXX_DEBUG_PEDASSERT(_String != 0 || _Len == 0)
425 
426 // Verify that a predicate is irreflexive
427 #define __glibcxx_check_irreflexive(_First,_Last)			\
428   _GLIBCXX_DEBUG_VERIFY(_First == _Last || !(*_First < *_First),	\
429 			_M_message(__gnu_debug::__msg_irreflexive_ordering) \
430 			._M_iterator_value_type(_First, "< operator type"))
431 
432 #if __cplusplus >= 201103L
433 # define __glibcxx_check_irreflexive2(_First,_Last)			\
434   _GLIBCXX_DEBUG_VERIFY(_First == _Last					\
435 			|| __gnu_debug::__is_irreflexive(_First),	\
436 			_M_message(__gnu_debug::__msg_irreflexive_ordering) \
437 			._M_iterator_value_type(_First, "< operator type"))
438 #else
439 # define __glibcxx_check_irreflexive2(_First,_Last)
440 #endif
441 
442 #define __glibcxx_check_irreflexive_pred(_First,_Last,_Pred)		\
443   _GLIBCXX_DEBUG_VERIFY(_First == _Last	|| !_Pred(*_First, *_First),		\
444 			_M_message(__gnu_debug::__msg_irreflexive_ordering) \
445 			._M_instance(_Pred, "functor")			\
446 			._M_iterator_value_type(_First, "ordered type"))
447 
448 #if __cplusplus >= 201103L
449 # define __glibcxx_check_irreflexive_pred2(_First,_Last,_Pred)		\
450   _GLIBCXX_DEBUG_VERIFY(_First == _Last					\
451 			||__gnu_debug::__is_irreflexive_pred(_First, _Pred), \
452 			_M_message(__gnu_debug::__msg_irreflexive_ordering) \
453 			._M_instance(_Pred, "functor")			\
454 			._M_iterator_value_type(_First, "ordered type"))
455 #else
456 # define __glibcxx_check_irreflexive_pred2(_First,_Last,_Pred)
457 #endif
458 
459 #endif
460