1 // Debugging support implementation -*- C++ -*-
3 // Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
4 // Free Software Foundation, Inc.
6 // This file is part of the GNU ISO C++ Library. This library is free
7 // software; you can redistribute it and/or modify it under the
8 // terms of the GNU General Public License as published by the
9 // Free Software Foundation; either version 3, or (at your option)
12 // This library is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // Under Section 7 of GPL version 3, you are granted additional
18 // permissions described in the GCC Runtime Library Exception, version
19 // 3.1, as published by the Free Software Foundation.
21 // You should have received a copy of the GNU General Public License and
22 // a copy of the GCC Runtime Library Exception along with this program;
23 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
24 // <http://www.gnu.org/licenses/>.
26 /** @file debug/macros.h
27 * This file is a GNU debug extension to the Standard C++ Library.
30 #ifndef _GLIBCXX_DEBUG_MACROS_H
31 #define _GLIBCXX_DEBUG_MACROS_H 1
34 * Macros used by the implementation to verify certain
35 * properties. These macros may only be used directly by the debug
36 * wrappers. Note that these are macros (instead of the more obviously
37 * @a correct choice of making them functions) because we need line and
38 * file information at the call site, to minimize the distance between
39 * the user error and where the error is reported.
42 #define _GLIBCXX_DEBUG_VERIFY(_Condition,_ErrorMessage) \
46 __gnu_debug::_Error_formatter::_M_at(__FILE__, __LINE__) \
47 ._ErrorMessage._M_error(); \
50 // Verify that [_First, _Last) forms a valid iterator range.
51 #define __glibcxx_check_valid_range(_First,_Last) \
52 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__valid_range(_First, _Last), \
53 _M_message(__gnu_debug::__msg_valid_range) \
54 ._M_iterator(_First, #_First) \
55 ._M_iterator(_Last, #_Last))
57 /** Verify that we can insert into *this with the iterator _Position.
58 * Insertion into a container at a specific position requires that
59 * the iterator be nonsingular, either dereferenceable or past-the-end,
60 * and that it reference the sequence we are inserting into. Note that
61 * this macro is only valid when the container is a_Safe_sequence and
62 * the iterator is a _Safe_iterator.
64 #define __glibcxx_check_insert(_Position) \
65 _GLIBCXX_DEBUG_VERIFY(!_Position._M_singular(), \
66 _M_message(__gnu_debug::__msg_insert_singular) \
67 ._M_sequence(*this, "this") \
68 ._M_iterator(_Position, #_Position)); \
69 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this), \
70 _M_message(__gnu_debug::__msg_insert_different) \
71 ._M_sequence(*this, "this") \
72 ._M_iterator(_Position, #_Position))
74 /** Verify that we can insert into *this after the iterator _Position.
75 * Insertion into a container after a specific position requires that
76 * the iterator be nonsingular, either dereferenceable or before-begin,
77 * and that it reference the sequence we are inserting into. Note that
78 * this macro is only valid when the container is a_Safe_sequence and
79 * the iterator is a _Safe_iterator.
81 #define __glibcxx_check_insert_after(_Position) \
82 __glibcxx_check_insert(_Position); \
83 _GLIBCXX_DEBUG_VERIFY(!_Position._M_is_end(), \
84 _M_message(__gnu_debug::__msg_insert_after_end) \
85 ._M_sequence(*this, "this") \
86 ._M_iterator(_Position, #_Position))
88 /** Verify that we can insert the values in the iterator range
89 * [_First, _Last) into *this with the iterator _Position. Insertion
90 * into a container at a specific position requires that the iterator
91 * be nonsingular (i.e., either dereferenceable or past-the-end),
92 * that it reference the sequence we are inserting into, and that the
93 * iterator range [_First, Last) is a valid (possibly empty)
94 * range. Note that this macro is only valid when the container is a
95 * _Safe_sequence and the iterator is a _Safe_iterator.
97 * @todo We would like to be able to check for noninterference of
98 * _Position and the range [_First, _Last), but that can't (in
101 #define __glibcxx_check_insert_range(_Position,_First,_Last) \
102 __glibcxx_check_valid_range(_First,_Last); \
103 __glibcxx_check_insert(_Position)
105 /** Verify that we can insert the values in the iterator range
106 * [_First, _Last) into *this after the iterator _Position. Insertion
107 * into a container after a specific position requires that the iterator
108 * be nonsingular (i.e., either dereferenceable or past-the-end),
109 * that it reference the sequence we are inserting into, and that the
110 * iterator range [_First, Last) is a valid (possibly empty)
111 * range. Note that this macro is only valid when the container is a
112 * _Safe_sequence and the iterator is a _Safe_iterator.
114 * @todo We would like to be able to check for noninterference of
115 * _Position and the range [_First, _Last), but that can't (in
118 #define __glibcxx_check_insert_range_after(_Position,_First,_Last) \
119 __glibcxx_check_valid_range(_First,_Last); \
120 __glibcxx_check_insert_after(_Position)
122 /** Verify that we can erase the element referenced by the iterator
123 * _Position. We can erase the element if the _Position iterator is
124 * dereferenceable and references this sequence.
126 #define __glibcxx_check_erase(_Position) \
127 _GLIBCXX_DEBUG_VERIFY(_Position._M_dereferenceable(), \
128 _M_message(__gnu_debug::__msg_erase_bad) \
129 ._M_sequence(*this, "this") \
130 ._M_iterator(_Position, #_Position)); \
131 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this), \
132 _M_message(__gnu_debug::__msg_erase_different) \
133 ._M_sequence(*this, "this") \
134 ._M_iterator(_Position, #_Position))
136 /** Verify that we can erase the element after the iterator
137 * _Position. We can erase the element if the _Position iterator is
138 * before a dereferenceable one and references this sequence.
140 #define __glibcxx_check_erase_after(_Position) \
141 _GLIBCXX_DEBUG_VERIFY(_Position._M_before_dereferenceable(), \
142 _M_message(__gnu_debug::__msg_erase_after_bad) \
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_erase_different) \
147 ._M_sequence(*this, "this") \
148 ._M_iterator(_Position, #_Position))
150 /** Verify that we can erase the elements in the iterator range
151 * [_First, _Last). We can erase the elements if [_First, _Last) is a
152 * valid iterator range within this sequence.
154 #define __glibcxx_check_erase_range(_First,_Last) \
155 __glibcxx_check_valid_range(_First,_Last); \
156 _GLIBCXX_DEBUG_VERIFY(_First._M_attached_to(this), \
157 _M_message(__gnu_debug::__msg_erase_different) \
158 ._M_sequence(*this, "this") \
159 ._M_iterator(_First, #_First) \
160 ._M_iterator(_Last, #_Last))
162 /** Verify that we can erase the elements in the iterator range
163 * (_First, _Last). We can erase the elements if (_First, _Last) is a
164 * valid iterator range within this sequence.
166 #define __glibcxx_check_erase_range_after(_First,_Last) \
167 _GLIBCXX_DEBUG_VERIFY(_First._M_can_compare(_Last), \
168 _M_message(__gnu_debug::__msg_erase_different) \
169 ._M_sequence(*this, "this") \
170 ._M_iterator(_First, #_First) \
171 ._M_iterator(_Last, #_Last)); \
172 _GLIBCXX_DEBUG_VERIFY(_First._M_attached_to(this), \
173 _M_message(__gnu_debug::__msg_erase_different) \
174 ._M_sequence(*this, "this") \
175 ._M_iterator(_First, #_First)); \
176 _GLIBCXX_DEBUG_VERIFY(_First != _Last, \
177 _M_message(__gnu_debug::__msg_valid_range2) \
178 ._M_sequence(*this, "this") \
179 ._M_iterator(_First, #_First) \
180 ._M_iterator(_Last, #_Last)); \
181 _GLIBCXX_DEBUG_VERIFY(_First._M_incrementable(), \
182 _M_message(__gnu_debug::__msg_valid_range2) \
183 ._M_sequence(*this, "this") \
184 ._M_iterator(_First, #_First) \
185 ._M_iterator(_Last, #_Last)); \
186 _GLIBCXX_DEBUG_VERIFY(!_Last._M_is_before_begin(), \
187 _M_message(__gnu_debug::__msg_valid_range2) \
188 ._M_sequence(*this, "this") \
189 ._M_iterator(_First, #_First) \
190 ._M_iterator(_Last, #_Last)) \
192 // Verify that the subscript _N is less than the container's size.
193 #define __glibcxx_check_subscript(_N) \
194 _GLIBCXX_DEBUG_VERIFY(_N < this->size(), \
195 _M_message(__gnu_debug::__msg_subscript_oob) \
196 ._M_sequence(*this, "this") \
197 ._M_integer(_N, #_N) \
198 ._M_integer(this->size(), "size"))
200 // Verify that the container is nonempty
201 #define __glibcxx_check_nonempty() \
202 _GLIBCXX_DEBUG_VERIFY(! this->empty(), \
203 _M_message(__gnu_debug::__msg_empty) \
204 ._M_sequence(*this, "this"))
206 // Verify that the iterator range [_First, _Last) is sorted
207 #define __glibcxx_check_sorted(_First,_Last) \
208 __glibcxx_check_valid_range(_First,_Last); \
209 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_sorted(_First, _Last), \
210 _M_message(__gnu_debug::__msg_unsorted) \
211 ._M_iterator(_First, #_First) \
212 ._M_iterator(_Last, #_Last))
214 /** Verify that the iterator range [_First, _Last) is sorted by the
216 #define __glibcxx_check_sorted_pred(_First,_Last,_Pred) \
217 __glibcxx_check_valid_range(_First,_Last); \
218 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_sorted(_First, _Last, _Pred), \
219 _M_message(__gnu_debug::__msg_unsorted_pred) \
220 ._M_iterator(_First, #_First) \
221 ._M_iterator(_Last, #_Last) \
224 // Special variant for std::merge, std::includes, std::set_*
225 #define __glibcxx_check_sorted_set(_First1,_Last1,_First2) \
226 __glibcxx_check_valid_range(_First1,_Last1); \
227 _GLIBCXX_DEBUG_VERIFY( \
228 __gnu_debug::__check_sorted_set(_First1, _Last1, _First2), \
229 _M_message(__gnu_debug::__msg_unsorted) \
230 ._M_iterator(_First1, #_First1) \
231 ._M_iterator(_Last1, #_Last1))
233 // Likewise with a _Pred.
234 #define __glibcxx_check_sorted_set_pred(_First1,_Last1,_First2,_Pred) \
235 __glibcxx_check_valid_range(_First1,_Last1); \
236 _GLIBCXX_DEBUG_VERIFY( \
237 __gnu_debug::__check_sorted_set(_First1, _Last1, _First2, _Pred), \
238 _M_message(__gnu_debug::__msg_unsorted_pred) \
239 ._M_iterator(_First1, #_First1) \
240 ._M_iterator(_Last1, #_Last1) \
243 /** Verify that the iterator range [_First, _Last) is partitioned
244 w.r.t. the value _Value. */
245 #define __glibcxx_check_partitioned_lower(_First,_Last,_Value) \
246 __glibcxx_check_valid_range(_First,_Last); \
247 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_lower(_First, _Last, \
249 _M_message(__gnu_debug::__msg_unpartitioned) \
250 ._M_iterator(_First, #_First) \
251 ._M_iterator(_Last, #_Last) \
254 #define __glibcxx_check_partitioned_upper(_First,_Last,_Value) \
255 __glibcxx_check_valid_range(_First,_Last); \
256 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper(_First, _Last, \
258 _M_message(__gnu_debug::__msg_unpartitioned) \
259 ._M_iterator(_First, #_First) \
260 ._M_iterator(_Last, #_Last) \
263 /** Verify that the iterator range [_First, _Last) is partitioned
264 w.r.t. the value _Value and predicate _Pred. */
265 #define __glibcxx_check_partitioned_lower_pred(_First,_Last,_Value,_Pred) \
266 __glibcxx_check_valid_range(_First,_Last); \
267 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_lower(_First, _Last, \
269 _M_message(__gnu_debug::__msg_unpartitioned_pred) \
270 ._M_iterator(_First, #_First) \
271 ._M_iterator(_Last, #_Last) \
275 /** Verify that the iterator range [_First, _Last) is partitioned
276 w.r.t. the value _Value and predicate _Pred. */
277 #define __glibcxx_check_partitioned_upper_pred(_First,_Last,_Value,_Pred) \
278 __glibcxx_check_valid_range(_First,_Last); \
279 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper(_First, _Last, \
281 _M_message(__gnu_debug::__msg_unpartitioned_pred) \
282 ._M_iterator(_First, #_First) \
283 ._M_iterator(_Last, #_Last) \
287 // Verify that the iterator range [_First, _Last) is a heap
288 #define __glibcxx_check_heap(_First,_Last) \
289 _GLIBCXX_DEBUG_VERIFY(std::__is_heap(_First, _Last), \
290 _M_message(__gnu_debug::__msg_not_heap) \
291 ._M_iterator(_First, #_First) \
292 ._M_iterator(_Last, #_Last))
294 /** Verify that the iterator range [_First, _Last) is a heap
295 w.r.t. the predicate _Pred. */
296 #define __glibcxx_check_heap_pred(_First,_Last,_Pred) \
297 _GLIBCXX_DEBUG_VERIFY(std::__is_heap(_First, _Last, _Pred), \
298 _M_message(__gnu_debug::__msg_not_heap_pred) \
299 ._M_iterator(_First, #_First) \
300 ._M_iterator(_Last, #_Last) \
303 #ifdef _GLIBCXX_DEBUG_PEDANTIC
304 # define __glibcxx_check_string(_String) _GLIBCXX_DEBUG_ASSERT(_String != 0)
305 # define __glibcxx_check_string_len(_String,_Len) \
306 _GLIBCXX_DEBUG_ASSERT(_String != 0 || _Len == 0)
308 # define __glibcxx_check_string(_String)
309 # define __glibcxx_check_string_len(_String,_Len)