1 // Debugging support implementation -*- C++ -*-
2 
3 // Copyright (C) 2003-2021 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 (__builtin_expect(!bool(_Cond), false))				\
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     __glibcxx_constexpr_assert(_Cond);					\
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_dist(_First,_Dist,_Way)		\
98   _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__can_advance(_First, _Dist, _Way), \
99 		      _M_message(__gnu_debug::__msg_iter_subscript_oob)	\
100 		      ._M_iterator(_First, #_First)			\
101 		      ._M_integer(_Way * _Dist.first, #_Dist))
102 
103 #define __glibcxx_check_can_increment_range(_First1,_Last1,_First2)	\
104   do									\
105   {									\
106     typename __gnu_debug::_Distance_traits<__decltype(_First1)>::__type __dist;\
107     _GLIBCXX_DEBUG_VERIFY_AT_F(						\
108 			__gnu_debug::__valid_range(_First1, _Last1, __dist),\
109 			_M_message(__gnu_debug::__msg_valid_range)	\
110 			._M_iterator(_First1, #_First1)			\
111 			._M_iterator(_Last1, #_Last1),			\
112 			__FILE__,__LINE__,__PRETTY_FUNCTION__);		\
113     _GLIBCXX_DEBUG_VERIFY_AT_F(						\
114 			__gnu_debug::__can_advance(_First2, __dist, 1), \
115 			_M_message(__gnu_debug::__msg_iter_subscript_oob)\
116 			._M_iterator(_First2, #_First2)			\
117 			._M_integer(__dist.first),			\
118 			__FILE__,__LINE__,__PRETTY_FUNCTION__);		\
119   } while(false)
120 
121 #define __glibcxx_check_can_decrement_range(_First1,_Last1,_First2)	\
122   do									\
123   {									\
124     typename __gnu_debug::_Distance_traits<__decltype(_First1)>::__type __dist;\
125     _GLIBCXX_DEBUG_VERIFY_AT_F(						\
126 			__gnu_debug::__valid_range(_First1, _Last1, __dist),\
127 			_M_message(__gnu_debug::__msg_valid_range)	\
128 			._M_iterator(_First1, #_First1)			\
129 			._M_iterator(_Last1, #_Last1),			\
130 			__FILE__,__LINE__,__PRETTY_FUNCTION__);		\
131     _GLIBCXX_DEBUG_VERIFY_AT_F(						\
132 			__gnu_debug::__can_advance(_First2, __dist, -1), \
133 			_M_message(__gnu_debug::__msg_iter_subscript_oob)\
134 			._M_iterator(_First2, #_First2)			\
135 			._M_integer(-__dist.first),			\
136 			__FILE__,__LINE__,__PRETTY_FUNCTION__);		\
137   } while(false)
138 
139 /** Verify that we can insert into *this with the iterator _Position.
140  *  Insertion into a container at a specific position requires that
141  *  the iterator be nonsingular, either dereferenceable or past-the-end,
142  *  and that it reference the sequence we are inserting into. Note that
143  *  this macro is only valid when the container is a_Safe_sequence and
144  *  the iterator is a _Safe_iterator.
145 */
146 #define __glibcxx_check_insert(_Position)				\
147 _GLIBCXX_DEBUG_VERIFY(!_Position._M_singular(),				\
148 		      _M_message(__gnu_debug::__msg_insert_singular)	\
149 		      ._M_sequence(*this, "this")			\
150 		      ._M_iterator(_Position, #_Position));		\
151 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this),			\
152 		      _M_message(__gnu_debug::__msg_insert_different)	\
153 		      ._M_sequence(*this, "this")			\
154 		      ._M_iterator(_Position, #_Position))
155 
156 /** Verify that we can insert into *this after the iterator _Position.
157  *  Insertion into a container after a specific position requires that
158  *  the iterator be nonsingular, either dereferenceable or before-begin,
159  *  and that it reference the sequence we are inserting into. Note that
160  *  this macro is only valid when the container is a_Safe_sequence and
161  *  the iterator is a _Safe_iterator.
162 */
163 #define __glibcxx_check_insert_after(_Position)				\
164 __glibcxx_check_insert(_Position);					\
165 _GLIBCXX_DEBUG_VERIFY(!_Position._M_is_end(),				\
166 		      _M_message(__gnu_debug::__msg_insert_after_end)	\
167 		      ._M_sequence(*this, "this")			\
168 		      ._M_iterator(_Position, #_Position))
169 
170 /** Verify that we can insert the values in the iterator range
171  *  [_First, _Last) into *this with the iterator _Position.  Insertion
172  *  into a container at a specific position requires that the iterator
173  *  be nonsingular (i.e., either dereferenceable or past-the-end),
174  *  that it reference the sequence we are inserting into, and that the
175  *  iterator range [_First, _Last) is a valid (possibly empty)
176  *  range which does not reference the sequence we are inserting into.
177  *  Note that this macro is only valid when the container is a
178  *  _Safe_sequence and the _Position iterator is a _Safe_iterator.
179 */
180 #define __glibcxx_check_insert_range(_Position,_First,_Last,_Dist)	\
181 __glibcxx_check_valid_range2(_First,_Last,_Dist);			\
182 __glibcxx_check_insert(_Position);					\
183 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__foreign_iterator(_Position,_First,_Last),\
184 		      _M_message(__gnu_debug::__msg_insert_range_from_self)\
185 		      ._M_iterator(_First, #_First)			\
186 		      ._M_iterator(_Last, #_Last)			\
187 		      ._M_sequence(*this, "this"))
188 
189 /** Verify that we can insert the values in the iterator range
190  *  [_First, _Last) into *this after the iterator _Position.  Insertion
191  *  into a container after a specific position requires that the iterator
192  *  be nonsingular (i.e., either dereferenceable or past-the-end),
193  *  that it reference the sequence we are inserting into, and that the
194  *  iterator range [_First, _Last) is a valid (possibly empty)
195  *  range which does not reference the sequence we are inserting into.
196  *  Note that this macro is only valid when the container is a
197  *  _Safe_sequence and the _Position iterator is a _Safe_iterator.
198 */
199 #define __glibcxx_check_insert_range_after(_Position,_First,_Last,_Dist)\
200 __glibcxx_check_valid_range2(_First,_Last,_Dist);			\
201 __glibcxx_check_insert_after(_Position);				\
202 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__foreign_iterator(_Position,_First,_Last),\
203 		      _M_message(__gnu_debug::__msg_insert_range_from_self)\
204 		      ._M_iterator(_First, #_First)			\
205 		      ._M_iterator(_Last, #_Last)			\
206 		      ._M_sequence(*this, "this"))
207 
208 /** Verify that we can erase the element referenced by the iterator
209  * _Position. We can erase the element if the _Position iterator is
210  * dereferenceable and references this sequence.
211 */
212 #define __glibcxx_check_erase(_Position)				\
213 _GLIBCXX_DEBUG_VERIFY(_Position._M_dereferenceable(),			\
214 		      _M_message(__gnu_debug::__msg_erase_bad)	        \
215                       ._M_sequence(*this, "this")			\
216 		      ._M_iterator(_Position, #_Position));		\
217 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this),			\
218 		      _M_message(__gnu_debug::__msg_erase_different)    \
219 		      ._M_sequence(*this, "this")			\
220 		      ._M_iterator(_Position, #_Position))
221 
222 /** Verify that we can erase the element after the iterator
223  * _Position. We can erase the element if the _Position iterator is
224  * before a dereferenceable one and references this sequence.
225 */
226 #define __glibcxx_check_erase_after(_Position)				\
227 _GLIBCXX_DEBUG_VERIFY(_Position._M_before_dereferenceable(),		\
228 		      _M_message(__gnu_debug::__msg_erase_after_bad)	\
229 		      ._M_sequence(*this, "this")			\
230 		      ._M_iterator(_Position, #_Position));		\
231 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this),			\
232 		      _M_message(__gnu_debug::__msg_erase_different)	\
233 		      ._M_sequence(*this, "this")			\
234 		      ._M_iterator(_Position, #_Position))
235 
236 /** Verify that we can erase the elements in the iterator range
237  *  [_First, _Last). We can erase the elements if [_First, _Last) is a
238  *  valid iterator range within this sequence.
239 */
240 #define __glibcxx_check_erase_range(_First,_Last)			\
241 __glibcxx_check_valid_range(_First,_Last);				\
242 _GLIBCXX_DEBUG_VERIFY(_First._M_attached_to(this),			\
243 		      _M_message(__gnu_debug::__msg_erase_different)    \
244                       ._M_sequence(*this, "this")			\
245 		      ._M_iterator(_First, #_First)			\
246 		      ._M_iterator(_Last, #_Last))
247 
248 /** Verify that we can erase the elements in the iterator range
249  *  (_First, _Last). We can erase the elements if (_First, _Last) is a
250  *  valid iterator range within this sequence.
251 */
252 #define __glibcxx_check_erase_range_after(_First,_Last)			\
253 _GLIBCXX_DEBUG_VERIFY(!_First._M_singular() && !_Last._M_singular(),	\
254 		      _M_message(__gnu_debug::__msg_erase_different)	\
255 		      ._M_sequence(*this, "this")			\
256 		      ._M_iterator(_First, #_First)			\
257 		      ._M_iterator(_Last, #_Last));			\
258 _GLIBCXX_DEBUG_VERIFY(_First._M_can_compare(_Last),			\
259 		      _M_message(__gnu_debug::__msg_erase_different)	\
260 		      ._M_sequence(*this, "this")			\
261 		      ._M_iterator(_First, #_First)			\
262 		      ._M_iterator(_Last, #_Last));			\
263 _GLIBCXX_DEBUG_VERIFY(_First._M_attached_to(this),			\
264 		      _M_message(__gnu_debug::__msg_erase_different)	\
265 		      ._M_sequence(*this, "this")			\
266 		      ._M_iterator(_First, #_First));			\
267 _GLIBCXX_DEBUG_VERIFY(_First != _Last,					\
268 		      _M_message(__gnu_debug::__msg_valid_range2)	\
269 		      ._M_sequence(*this, "this")			\
270 		      ._M_iterator(_First, #_First)			\
271 		      ._M_iterator(_Last, #_Last));			\
272 _GLIBCXX_DEBUG_VERIFY(_First._M_incrementable(),			\
273 		      _M_message(__gnu_debug::__msg_valid_range2)	\
274 		      ._M_sequence(*this, "this")			\
275 		      ._M_iterator(_First, #_First)			\
276 		      ._M_iterator(_Last, #_Last));			\
277 _GLIBCXX_DEBUG_VERIFY(!_Last._M_is_before_begin(),			\
278 		      _M_message(__gnu_debug::__msg_valid_range2)	\
279 		      ._M_sequence(*this, "this")			\
280 		      ._M_iterator(_First, #_First)			\
281 		      ._M_iterator(_Last, #_Last))			\
282 
283 // Verify that the subscript _N is less than the container's size.
284 #define __glibcxx_check_subscript(_N)					\
285 _GLIBCXX_DEBUG_VERIFY(_N < this->size(),				\
286 		      _M_message(__gnu_debug::__msg_subscript_oob)	\
287                       ._M_sequence(*this, "this")			\
288 		      ._M_integer(_N, #_N)				\
289 		      ._M_integer(this->size(), "size"))
290 
291 // Verify that the bucket _N is less than the container's buckets count.
292 #define __glibcxx_check_bucket_index(_N)				\
293 _GLIBCXX_DEBUG_VERIFY(_N < this->bucket_count(),			\
294 		      _M_message(__gnu_debug::__msg_bucket_index_oob)	\
295                       ._M_sequence(*this, "this")			\
296 		      ._M_integer(_N, #_N)				\
297 		      ._M_integer(this->bucket_count(), "size"))
298 
299 // Verify that the container is nonempty
300 #define __glibcxx_check_nonempty()					\
301 _GLIBCXX_DEBUG_VERIFY(! this->empty(),					\
302 		      _M_message(__gnu_debug::__msg_empty)	        \
303                       ._M_sequence(*this, "this"))
304 
305 // Verify that a predicate is irreflexive
306 #define __glibcxx_check_irreflexive(_First,_Last)			\
307   _GLIBCXX_DEBUG_VERIFY(_First == _Last || !(*_First < *_First),	\
308 			_M_message(__gnu_debug::__msg_irreflexive_ordering) \
309 			._M_iterator_value_type(_First, "< operator type"))
310 
311 #if __cplusplus >= 201103L
312 # define __glibcxx_check_irreflexive2(_First,_Last)			\
313   _GLIBCXX_DEBUG_VERIFY(_First == _Last					\
314 			|| __gnu_debug::__is_irreflexive(_First),	\
315 			_M_message(__gnu_debug::__msg_irreflexive_ordering) \
316 			._M_iterator_value_type(_First, "< operator type"))
317 #else
318 # define __glibcxx_check_irreflexive2(_First,_Last)
319 #endif
320 
321 #define __glibcxx_check_irreflexive_pred(_First,_Last,_Pred)		\
322   _GLIBCXX_DEBUG_VERIFY(_First == _Last || !_Pred(*_First, *_First),	\
323 			_M_message(__gnu_debug::__msg_irreflexive_ordering) \
324 			._M_instance(_Pred, "functor")			\
325 			._M_iterator_value_type(_First, "ordered type"))
326 
327 #if __cplusplus >= 201103L
328 # define __glibcxx_check_irreflexive_pred2(_First,_Last,_Pred)		\
329   _GLIBCXX_DEBUG_VERIFY(_First == _Last					\
330 			||__gnu_debug::__is_irreflexive_pred(_First, _Pred), \
331 			_M_message(__gnu_debug::__msg_irreflexive_ordering) \
332 			._M_instance(_Pred, "functor")			\
333 			._M_iterator_value_type(_First, "ordered type"))
334 #else
335 # define __glibcxx_check_irreflexive_pred2(_First,_Last,_Pred)
336 #endif
337 
338 // Verify that the iterator range [_First, _Last) is sorted
339 #define __glibcxx_check_sorted(_First,_Last)				\
340 __glibcxx_check_valid_range(_First,_Last);				\
341 __glibcxx_check_irreflexive(_First,_Last);				\
342  _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_sorted(			\
343 			__gnu_debug::__base(_First),			\
344 			__gnu_debug::__base(_Last)),			\
345 		      _M_message(__gnu_debug::__msg_unsorted)	        \
346                       ._M_iterator(_First, #_First)			\
347 		      ._M_iterator(_Last, #_Last))
348 
349 /** Verify that the iterator range [_First, _Last) is sorted by the
350     predicate _Pred. */
351 #define __glibcxx_check_sorted_pred(_First,_Last,_Pred)			\
352 __glibcxx_check_valid_range(_First,_Last);				\
353 __glibcxx_check_irreflexive_pred(_First,_Last,_Pred);			\
354 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_sorted(			\
355 			__gnu_debug::__base(_First),			\
356 			__gnu_debug::__base(_Last), _Pred),		\
357 		      _M_message(__gnu_debug::__msg_unsorted_pred)      \
358                       ._M_iterator(_First, #_First)			\
359 		      ._M_iterator(_Last, #_Last)			\
360 		      ._M_string(#_Pred))
361 
362 // Special variant for std::merge, std::includes, std::set_*
363 #define __glibcxx_check_sorted_set(_First1,_Last1,_First2)		\
364 __glibcxx_check_valid_range(_First1,_Last1);				\
365 _GLIBCXX_DEBUG_VERIFY(                                                  \
366   __gnu_debug::__check_sorted_set(__gnu_debug::__base(_First1),		\
367 				  __gnu_debug::__base(_Last1), _First2),\
368   _M_message(__gnu_debug::__msg_unsorted)				\
369   ._M_iterator(_First1, #_First1)					\
370   ._M_iterator(_Last1, #_Last1))
371 
372 // Likewise with a _Pred.
373 #define __glibcxx_check_sorted_set_pred(_First1,_Last1,_First2,_Pred)	\
374 __glibcxx_check_valid_range(_First1,_Last1);        			\
375 _GLIBCXX_DEBUG_VERIFY(							\
376   __gnu_debug::__check_sorted_set(__gnu_debug::__base(_First1),		\
377 				  __gnu_debug::__base(_Last1),		\
378 				  _First2, _Pred),			\
379   _M_message(__gnu_debug::__msg_unsorted_pred)				\
380   ._M_iterator(_First1, #_First1)					\
381   ._M_iterator(_Last1, #_Last1)						\
382   ._M_string(#_Pred))
383 
384 /** Verify that the iterator range [_First, _Last) is partitioned
385     w.r.t. the value _Value. */
386 #define __glibcxx_check_partitioned_lower(_First,_Last,_Value)		\
387 __glibcxx_check_valid_range(_First,_Last);				\
388 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_lower(		\
389 			__gnu_debug::__base(_First),			\
390 			__gnu_debug::__base(_Last), _Value),		\
391 		      _M_message(__gnu_debug::__msg_unpartitioned)      \
392 		      ._M_iterator(_First, #_First)			\
393 		      ._M_iterator(_Last, #_Last)			\
394 		      ._M_string(#_Value))
395 
396 #define __glibcxx_check_partitioned_upper(_First,_Last,_Value)		\
397 __glibcxx_check_valid_range(_First,_Last);				\
398 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper(		\
399 			__gnu_debug::__base(_First),			\
400 			__gnu_debug::__base(_Last), _Value),		\
401 		      _M_message(__gnu_debug::__msg_unpartitioned)      \
402 		      ._M_iterator(_First, #_First)			\
403 		      ._M_iterator(_Last, #_Last)			\
404 		      ._M_string(#_Value))
405 
406 /** Verify that the iterator range [_First, _Last) is partitioned
407     w.r.t. the value _Value and predicate _Pred. */
408 #define __glibcxx_check_partitioned_lower_pred(_First,_Last,_Value,_Pred) \
409 __glibcxx_check_valid_range(_First,_Last);				\
410 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_lower(		\
411 			__gnu_debug::__base(_First),			\
412 			__gnu_debug::__base(_Last), _Value, _Pred),	\
413 		      _M_message(__gnu_debug::__msg_unpartitioned_pred) \
414 		      ._M_iterator(_First, #_First)			\
415 		      ._M_iterator(_Last, #_Last)			\
416 		      ._M_string(#_Pred)				\
417                       ._M_string(#_Value))
418 
419 /** Verify that the iterator range [_First, _Last) is partitioned
420     w.r.t. the value _Value and predicate _Pred. */
421 #define __glibcxx_check_partitioned_upper_pred(_First,_Last,_Value,_Pred) \
422 __glibcxx_check_valid_range(_First,_Last);				\
423 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper(		\
424 			__gnu_debug::__base(_First),			\
425 			__gnu_debug::__base(_Last), _Value, _Pred),	\
426 		      _M_message(__gnu_debug::__msg_unpartitioned_pred) \
427 		      ._M_iterator(_First, #_First)			\
428 		      ._M_iterator(_Last, #_Last)			\
429 		      ._M_string(#_Pred)				\
430                       ._M_string(#_Value))
431 
432 // Verify that the iterator range [_First, _Last) is a heap
433 #define __glibcxx_check_heap(_First,_Last)				\
434   _GLIBCXX_DEBUG_VERIFY(std::__is_heap(__gnu_debug::__base(_First),	\
435 				       __gnu_debug::__base(_Last)),	\
436 		      _M_message(__gnu_debug::__msg_not_heap)	        \
437 		      ._M_iterator(_First, #_First)			\
438 		      ._M_iterator(_Last, #_Last))
439 
440 /** Verify that the iterator range [_First, _Last) is a heap
441     w.r.t. the predicate _Pred. */
442 #define __glibcxx_check_heap_pred(_First,_Last,_Pred)			\
443   _GLIBCXX_DEBUG_VERIFY(std::__is_heap(__gnu_debug::__base(_First),	\
444 				       __gnu_debug::__base(_Last),	\
445 				       _Pred),				\
446 		      _M_message(__gnu_debug::__msg_not_heap_pred)      \
447                       ._M_iterator(_First, #_First)			\
448 		      ._M_iterator(_Last, #_Last)			\
449 		      ._M_string(#_Pred))
450 
451 // Verify that load factor is positive
452 #define __glibcxx_check_max_load_factor(_F)				\
453 _GLIBCXX_DEBUG_VERIFY(_F > 0.0f,					\
454 		      _M_message(__gnu_debug::__msg_valid_load_factor)	\
455                       ._M_sequence(*this, "this"))
456 
457 #define __glibcxx_check_equal_allocs(_This, _Other)			\
458 _GLIBCXX_DEBUG_VERIFY(_This.get_allocator() == _Other.get_allocator(),	\
459 		      _M_message(__gnu_debug::__msg_equal_allocs)	\
460 		      ._M_sequence(_This, "this"))
461 
462 #define __glibcxx_check_string(_String) _GLIBCXX_DEBUG_PEDASSERT(_String != 0)
463 #define __glibcxx_check_string_len(_String,_Len) \
464   _GLIBCXX_DEBUG_PEDASSERT(_String != 0 || _Len == 0)
465 
466 #endif
467