libstdc++
macros.h
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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
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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