libstdc++-v3/include/debug/macros.h

   1 // Debugging support implementation -*- C++ -*-
   2
   3 // Copyright (C) 2003-2018 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 #define __glibcxx_check_can_increment_range(_First1,_Last1,_First2)     \
  91   do                                                                    \
  92   {                                                                     \
  93     typename __gnu_debug::_Distance_traits<__decltype(_First1)>::__type __dist;\
  94     _GLIBCXX_DEBUG_VERIFY_COND_AT(                                      \
  95                         __gnu_debug::__valid_range(_First1, _Last1, __dist),\
  96                         _M_message(__gnu_debug::__msg_valid_range)      \
  97                         ._M_iterator(_First1, #_First1)                 \
  98                         ._M_iterator(_Last1, #_Last1),                  \
  99                         __FILE__,__LINE__,__PRETTY_FUNCTION__);         \
 100     _GLIBCXX_DEBUG_VERIFY_COND_AT(                                      \
 101                         __gnu_debug::__can_advance(_First2, __dist.first),\
 102                         _M_message(__gnu_debug::__msg_iter_subscript_oob)\
 103                         ._M_iterator(_First2, #_First2)                 \
 104                         ._M_integer(__dist.first),                      \
 105                         __FILE__,__LINE__,__PRETTY_FUNCTION__);         \
 106   } while(false)
 107
 108 #define __glibcxx_check_can_decrement_range(_First1,_Last1,_First2)     \
 109   do                                                                    \
 110   {                                                                     \
 111     typename __gnu_debug::_Distance_traits<__decltype(_First1)>::__type __dist;\
 112     _GLIBCXX_DEBUG_VERIFY_COND_AT(                                      \
 113                         __gnu_debug::__valid_range(_First1, _Last1, __dist),\
 114                         _M_message(__gnu_debug::__msg_valid_range)      \
 115                         ._M_iterator(_First1, #_First1)                 \
 116                         ._M_iterator(_Last1, #_Last1),                  \
 117                         __FILE__,__LINE__,__PRETTY_FUNCTION__);         \
 118     _GLIBCXX_DEBUG_VERIFY_COND_AT(                                      \
 119                         __gnu_debug::__can_advance(_First2, -__dist.first),\
 120                         _M_message(__gnu_debug::__msg_iter_subscript_oob)\
 121                         ._M_iterator(_First2, #_First2)                 \
 122                         ._M_integer(-__dist.first),                     \
 123                         __FILE__,__LINE__,__PRETTY_FUNCTION__);         \
 124   } while(false)
 125
 126 /** Verify that we can insert into *this with the iterator _Position.
 127  *  Insertion into a container at a specific position requires that
 128  *  the iterator be nonsingular, either dereferenceable or past-the-end,
 129  *  and that it reference the sequence we are inserting into. Note that
 130  *  this macro is only valid when the container is a_Safe_sequence and
 131  *  the iterator is a _Safe_iterator.
 132 */
 133 #define __glibcxx_check_insert(_Position)                               \
 134 _GLIBCXX_DEBUG_VERIFY(!_Position._M_singular(),                         \
 135                       _M_message(__gnu_debug::__msg_insert_singular)    \
 136                       ._M_sequence(*this, "this")                       \
 137                       ._M_iterator(_Position, #_Position));             \
 138 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this),                   \
 139                       _M_message(__gnu_debug::__msg_insert_different)   \
 140                       ._M_sequence(*this, "this")                       \
 141                       ._M_iterator(_Position, #_Position))
 142
 143 /** Verify that we can insert into *this after the iterator _Position.
 144  *  Insertion into a container after a specific position requires that
 145  *  the iterator be nonsingular, either dereferenceable or before-begin,
 146  *  and that it reference the sequence we are inserting into. Note that
 147  *  this macro is only valid when the container is a_Safe_sequence and
 148  *  the iterator is a _Safe_iterator.
 149 */
 150 #define __glibcxx_check_insert_after(_Position)                         \
 151 __glibcxx_check_insert(_Position);                                      \
 152 _GLIBCXX_DEBUG_VERIFY(!_Position._M_is_end(),                           \
 153                       _M_message(__gnu_debug::__msg_insert_after_end)   \
 154                       ._M_sequence(*this, "this")                       \
 155                       ._M_iterator(_Position, #_Position))
 156
 157 /** Verify that we can insert the values in the iterator range
 158  *  [_First, _Last) into *this with the iterator _Position.  Insertion
 159  *  into a container at a specific position requires that the iterator
 160  *  be nonsingular (i.e., either dereferenceable or past-the-end),
 161  *  that it reference the sequence we are inserting into, and that the
 162  *  iterator range [_First, _Last) is a valid (possibly empty)
 163  *  range which does not reference the sequence we are inserting into.
 164  *  Note that this macro is only valid when the container is a
 165  *  _Safe_sequence and the _Position iterator is a _Safe_iterator.
 166 */
 167 #define __glibcxx_check_insert_range(_Position,_First,_Last,_Dist)      \
 168 __glibcxx_check_valid_range2(_First,_Last,_Dist);                       \
 169 __glibcxx_check_insert(_Position);                                      \
 170 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__foreign_iterator(_Position,_First,_Last),\
 171                       _M_message(__gnu_debug::__msg_insert_range_from_self)\
 172                       ._M_iterator(_First, #_First)                     \
 173                       ._M_iterator(_Last, #_Last)                       \
 174                       ._M_sequence(*this, "this"))
 175
 176 /** Verify that we can insert the values in the iterator range
 177  *  [_First, _Last) into *this after the iterator _Position.  Insertion
 178  *  into a container after a specific position requires that the iterator
 179  *  be nonsingular (i.e., either dereferenceable or past-the-end),
 180  *  that it reference the sequence we are inserting into, and that the
 181  *  iterator range [_First, _Last) is a valid (possibly empty)
 182  *  range which does not reference the sequence we are inserting into.
 183  *  Note that this macro is only valid when the container is a
 184  *  _Safe_sequence and the _Position iterator is a _Safe_iterator.
 185 */
 186 #define __glibcxx_check_insert_range_after(_Position,_First,_Last,_Dist)\
 187 __glibcxx_check_valid_range2(_First,_Last,_Dist);                       \
 188 __glibcxx_check_insert_after(_Position);                                \
 189 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__foreign_iterator(_Position,_First,_Last),\
 190                       _M_message(__gnu_debug::__msg_insert_range_from_self)\
 191                       ._M_iterator(_First, #_First)                     \
 192                       ._M_iterator(_Last, #_Last)                       \
 193                       ._M_sequence(*this, "this"))
 194
 195 /** Verify that we can erase the element referenced by the iterator
 196  * _Position. We can erase the element if the _Position iterator is
 197  * dereferenceable and references this sequence.
 198 */
 199 #define __glibcxx_check_erase(_Position)                                \
 200 _GLIBCXX_DEBUG_VERIFY(_Position._M_dereferenceable(),                   \
 201                       _M_message(__gnu_debug::__msg_erase_bad)          \
 202                       ._M_sequence(*this, "this")                       \
 203                       ._M_iterator(_Position, #_Position));             \
 204 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this),                   \
 205                       _M_message(__gnu_debug::__msg_erase_different)    \
 206                       ._M_sequence(*this, "this")                       \
 207                       ._M_iterator(_Position, #_Position))
 208
 209 /** Verify that we can erase the element after the iterator
 210  * _Position. We can erase the element if the _Position iterator is
 211  * before a dereferenceable one and references this sequence.
 212 */
 213 #define __glibcxx_check_erase_after(_Position)                          \
 214 _GLIBCXX_DEBUG_VERIFY(_Position._M_before_dereferenceable(),            \
 215                       _M_message(__gnu_debug::__msg_erase_after_bad)    \
 216                       ._M_sequence(*this, "this")                       \
 217                       ._M_iterator(_Position, #_Position));             \
 218 _GLIBCXX_DEBUG_VERIFY(_Position._M_attached_to(this),                   \
 219                       _M_message(__gnu_debug::__msg_erase_different)    \
 220                       ._M_sequence(*this, "this")                       \
 221                       ._M_iterator(_Position, #_Position))
 222
 223 /** Verify that we can erase the elements in the iterator range
 224  *  [_First, _Last). We can erase the elements if [_First, _Last) is a
 225  *  valid iterator range within this sequence.
 226 */
 227 #define __glibcxx_check_erase_range(_First,_Last)                       \
 228 __glibcxx_check_valid_range(_First,_Last);                              \
 229 _GLIBCXX_DEBUG_VERIFY(_First._M_attached_to(this),                      \
 230                       _M_message(__gnu_debug::__msg_erase_different)    \
 231                       ._M_sequence(*this, "this")                       \
 232                       ._M_iterator(_First, #_First)                     \
 233                       ._M_iterator(_Last, #_Last))
 234
 235 /** Verify that we can erase the elements in the iterator range
 236  *  (_First, _Last). We can erase the elements if (_First, _Last) is a
 237  *  valid iterator range within this sequence.
 238 */
 239 #define __glibcxx_check_erase_range_after(_First,_Last)                 \
 240 _GLIBCXX_DEBUG_VERIFY(_First._M_can_compare(_Last),                     \
 241                       _M_message(__gnu_debug::__msg_erase_different)    \
 242                       ._M_sequence(*this, "this")                       \
 243                       ._M_iterator(_First, #_First)                     \
 244                       ._M_iterator(_Last, #_Last));                     \
 245 _GLIBCXX_DEBUG_VERIFY(_First._M_attached_to(this),                      \
 246                       _M_message(__gnu_debug::__msg_erase_different)    \
 247                       ._M_sequence(*this, "this")                       \
 248                       ._M_iterator(_First, #_First));                   \
 249 _GLIBCXX_DEBUG_VERIFY(_First != _Last,                                  \
 250                       _M_message(__gnu_debug::__msg_valid_range2)       \
 251                       ._M_sequence(*this, "this")                       \
 252                       ._M_iterator(_First, #_First)                     \
 253                       ._M_iterator(_Last, #_Last));                     \
 254 _GLIBCXX_DEBUG_VERIFY(_First._M_incrementable(),                        \
 255                       _M_message(__gnu_debug::__msg_valid_range2)       \
 256                       ._M_sequence(*this, "this")                       \
 257                       ._M_iterator(_First, #_First)                     \
 258                       ._M_iterator(_Last, #_Last));                     \
 259 _GLIBCXX_DEBUG_VERIFY(!_Last._M_is_before_begin(),                      \
 260                       _M_message(__gnu_debug::__msg_valid_range2)       \
 261                       ._M_sequence(*this, "this")                       \
 262                       ._M_iterator(_First, #_First)                     \
 263                       ._M_iterator(_Last, #_Last))                      \
 264
 265 // Verify that the subscript _N is less than the container's size.
 266 #define __glibcxx_check_subscript(_N)                                   \
 267 _GLIBCXX_DEBUG_VERIFY(_N < this->size(),                                \
 268                       _M_message(__gnu_debug::__msg_subscript_oob)      \
 269                       ._M_sequence(*this, "this")                       \
 270                       ._M_integer(_N, #_N)                              \
 271                       ._M_integer(this->size(), "size"))
 272
 273 // Verify that the bucket _N is less than the container's buckets count.
 274 #define __glibcxx_check_bucket_index(_N)                                \
 275 _GLIBCXX_DEBUG_VERIFY(_N < this->bucket_count(),                        \
 276                       _M_message(__gnu_debug::__msg_bucket_index_oob)   \
 277                       ._M_sequence(*this, "this")                       \
 278                       ._M_integer(_N, #_N)                              \
 279                       ._M_integer(this->bucket_count(), "size"))
 280
 281 // Verify that the container is nonempty
 282 #define __glibcxx_check_nonempty()                                      \
 283 _GLIBCXX_DEBUG_VERIFY(! this->empty(),                                  \
 284                       _M_message(__gnu_debug::__msg_empty)              \
 285                       ._M_sequence(*this, "this"))
 286
 287 // Verify that the iterator range [_First, _Last) is sorted
 288 #define __glibcxx_check_sorted(_First,_Last)                            \
 289 __glibcxx_check_valid_range(_First,_Last);                              \
 290  _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_sorted(                     \
 291                         __gnu_debug::__base(_First),                    \
 292                         __gnu_debug::__base(_Last)),                    \
 293                       _M_message(__gnu_debug::__msg_unsorted)           \
 294                       ._M_iterator(_First, #_First)                     \
 295                       ._M_iterator(_Last, #_Last))
 296
 297 /** Verify that the iterator range [_First, _Last) is sorted by the
 298     predicate _Pred. */
 299 #define __glibcxx_check_sorted_pred(_First,_Last,_Pred)                 \
 300 __glibcxx_check_valid_range(_First,_Last);                              \
 301 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_sorted(                      \
 302                         __gnu_debug::__base(_First),                    \
 303                         __gnu_debug::__base(_Last), _Pred),             \
 304                       _M_message(__gnu_debug::__msg_unsorted_pred)      \
 305                       ._M_iterator(_First, #_First)                     \
 306                       ._M_iterator(_Last, #_Last)                       \
 307                       ._M_string(#_Pred))
 308
 309 // Special variant for std::merge, std::includes, std::set_*
 310 #define __glibcxx_check_sorted_set(_First1,_Last1,_First2)              \
 311 __glibcxx_check_valid_range(_First1,_Last1);                            \
 312 _GLIBCXX_DEBUG_VERIFY(                                                  \
 313   __gnu_debug::__check_sorted_set(__gnu_debug::__base(_First1),         \
 314                                   __gnu_debug::__base(_Last1), _First2),\
 315   _M_message(__gnu_debug::__msg_unsorted)                               \
 316   ._M_iterator(_First1, #_First1)                                       \
 317   ._M_iterator(_Last1, #_Last1))
 318
 319 // Likewise with a _Pred.
 320 #define __glibcxx_check_sorted_set_pred(_First1,_Last1,_First2,_Pred)   \
 321 __glibcxx_check_valid_range(_First1,_Last1);                            \
 322 _GLIBCXX_DEBUG_VERIFY(                                                  \
 323   __gnu_debug::__check_sorted_set(__gnu_debug::__base(_First1),         \
 324                                   __gnu_debug::__base(_Last1),          \
 325                                   _First2, _Pred),                      \
 326   _M_message(__gnu_debug::__msg_unsorted_pred)                          \
 327   ._M_iterator(_First1, #_First1)                                       \
 328   ._M_iterator(_Last1, #_Last1)                                         \
 329   ._M_string(#_Pred))
 330
 331 /** Verify that the iterator range [_First, _Last) is partitioned
 332     w.r.t. the value _Value. */
 333 #define __glibcxx_check_partitioned_lower(_First,_Last,_Value)          \
 334 __glibcxx_check_valid_range(_First,_Last);                              \
 335 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_lower(           \
 336                         __gnu_debug::__base(_First),                    \
 337                         __gnu_debug::__base(_Last), _Value),            \
 338                       _M_message(__gnu_debug::__msg_unpartitioned)      \
 339                       ._M_iterator(_First, #_First)                     \
 340                       ._M_iterator(_Last, #_Last)                       \
 341                       ._M_string(#_Value))
 342
 343 #define __glibcxx_check_partitioned_upper(_First,_Last,_Value)          \
 344 __glibcxx_check_valid_range(_First,_Last);                              \
 345 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper(           \
 346                         __gnu_debug::__base(_First),                    \
 347                         __gnu_debug::__base(_Last), _Value),            \
 348                       _M_message(__gnu_debug::__msg_unpartitioned)      \
 349                       ._M_iterator(_First, #_First)                     \
 350                       ._M_iterator(_Last, #_Last)                       \
 351                       ._M_string(#_Value))
 352
 353 /** Verify that the iterator range [_First, _Last) is partitioned
 354     w.r.t. the value _Value and predicate _Pred. */
 355 #define __glibcxx_check_partitioned_lower_pred(_First,_Last,_Value,_Pred) \
 356 __glibcxx_check_valid_range(_First,_Last);                              \
 357 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_lower(           \
 358                         __gnu_debug::__base(_First),                    \
 359                         __gnu_debug::__base(_Last), _Value, _Pred),     \
 360                       _M_message(__gnu_debug::__msg_unpartitioned_pred) \
 361                       ._M_iterator(_First, #_First)                     \
 362                       ._M_iterator(_Last, #_Last)                       \
 363                       ._M_string(#_Pred)                                \
 364                       ._M_string(#_Value))
 365
 366 /** Verify that the iterator range [_First, _Last) is partitioned
 367     w.r.t. the value _Value and predicate _Pred. */
 368 #define __glibcxx_check_partitioned_upper_pred(_First,_Last,_Value,_Pred) \
 369 __glibcxx_check_valid_range(_First,_Last);                              \
 370 _GLIBCXX_DEBUG_VERIFY(__gnu_debug::__check_partitioned_upper(           \
 371                         __gnu_debug::__base(_First),                    \
 372                         __gnu_debug::__base(_Last), _Value, _Pred),     \
 373                       _M_message(__gnu_debug::__msg_unpartitioned_pred) \
 374                       ._M_iterator(_First, #_First)                     \
 375                       ._M_iterator(_Last, #_Last)                       \
 376                       ._M_string(#_Pred)                                \
 377                       ._M_string(#_Value))
 378
 379 // Verify that the iterator range [_First, _Last) is a heap
 380 #define __glibcxx_check_heap(_First,_Last)                              \
 381   _GLIBCXX_DEBUG_VERIFY(std::__is_heap(__gnu_debug::__base(_First),     \
 382                                        __gnu_debug::__base(_Last)),     \
 383                       _M_message(__gnu_debug::__msg_not_heap)           \
 384                       ._M_iterator(_First, #_First)                     \
 385                       ._M_iterator(_Last, #_Last))
 386
 387 /** Verify that the iterator range [_First, _Last) is a heap
 388     w.r.t. the predicate _Pred. */
 389 #define __glibcxx_check_heap_pred(_First,_Last,_Pred)                   \
 390   _GLIBCXX_DEBUG_VERIFY(std::__is_heap(__gnu_debug::__base(_First),     \
 391                                        __gnu_debug::__base(_Last),      \
 392                                        _Pred),                          \
 393                       _M_message(__gnu_debug::__msg_not_heap_pred)      \
 394                       ._M_iterator(_First, #_First)                     \
 395                       ._M_iterator(_Last, #_Last)                       \
 396                       ._M_string(#_Pred))
 397
 398 // Verify that the container is not self move assigned
 399 #define __glibcxx_check_self_move_assign(_Other)                        \
 400 _GLIBCXX_DEBUG_VERIFY(this != &_Other,                                  \
 401                       _M_message(__gnu_debug::__msg_self_move_assign)   \
 402                       ._M_sequence(*this, "this"))
 403
 404 // Verify that load factor is positive
 405 #define __glibcxx_check_max_load_factor(_F)                             \
 406 _GLIBCXX_DEBUG_VERIFY(_F > 0.0f,                                        \
 407                       _M_message(__gnu_debug::__msg_valid_load_factor)  \
 408                       ._M_sequence(*this, "this"))
 409
 410 #define __glibcxx_check_equal_allocs(_This, _Other)                     \
 411 _GLIBCXX_DEBUG_VERIFY(_This.get_allocator() == _Other.get_allocator(),  \
 412                       _M_message(__gnu_debug::__msg_equal_allocs)       \
 413                       ._M_sequence(_This, "this"))
 414
 415 #define __glibcxx_check_string(_String) _GLIBCXX_DEBUG_PEDASSERT(_String != 0)
 416 #define __glibcxx_check_string_len(_String,_Len) \
 417   _GLIBCXX_DEBUG_PEDASSERT(_String != 0 || _Len == 0)
 418
 419 // Verify that a predicate is irreflexive
 420 #define __glibcxx_check_irreflexive(_First,_Last)                       \
 421   _GLIBCXX_DEBUG_VERIFY(_First == _Last || !(*_First < *_First),        \
 422                         _M_message(__gnu_debug::__msg_irreflexive_ordering) \
 423                         ._M_iterator_value_type(_First, "< operator type"))
 424
 425 #if __cplusplus >= 201103L
 426 # define __glibcxx_check_irreflexive2(_First,_Last)                     \
 427   _GLIBCXX_DEBUG_VERIFY(_First == _Last                                 \
 428                         || __gnu_debug::__is_irreflexive(_First),       \
 429                         _M_message(__gnu_debug::__msg_irreflexive_ordering) \
 430                         ._M_iterator_value_type(_First, "< operator type"))
 431 #else
 432 # define __glibcxx_check_irreflexive2(_First,_Last)
 433 #endif
 434
 435 #define __glibcxx_check_irreflexive_pred(_First,_Last,_Pred)            \
 436   _GLIBCXX_DEBUG_VERIFY(_First == _Last || !_Pred(*_First, *_First),            \
 437                         _M_message(__gnu_debug::__msg_irreflexive_ordering) \
 438                         ._M_instance(_Pred, "functor")                  \
 439                         ._M_iterator_value_type(_First, "ordered type"))
 440
 441 #if __cplusplus >= 201103L
 442 # define __glibcxx_check_irreflexive_pred2(_First,_Last,_Pred)          \
 443   _GLIBCXX_DEBUG_VERIFY(_First == _Last                                 \
 444                         ||__gnu_debug::__is_irreflexive_pred(_First, _Pred), \
 445                         _M_message(__gnu_debug::__msg_irreflexive_ordering) \
 446                         ._M_instance(_Pred, "functor")                  \
 447                         ._M_iterator_value_type(_First, "ordered type"))
 448 #else
 449 # define __glibcxx_check_irreflexive_pred2(_First,_Last,_Pred)
 450 #endif
 451
 452 #endif