libstdc++-v3/src/c++98/compatibility.cc

   1 // Compatibility symbols for previous versions -*- C++ -*-
   2
   3 // Copyright (C) 2005-2025 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 #define _GLIBCXX_USE_CXX11_ABI 0
  26 #include <bits/c++config.h>
  27
  28 #if defined(_GLIBCXX_SYMVER_GNU) && defined(_GLIBCXX_SHARED) \
  29     && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE)\
  30     && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
  31 #define istreambuf_iterator istreambuf_iteratorXX
  32 #define basic_fstream basic_fstreamXX
  33 #define basic_ifstream basic_ifstreamXX
  34 #define basic_ofstream basic_ofstreamXX
  35 #define _M_copy(a, b, c) _M_copyXX(a, b, c)
  36 #define _M_move(a, b, c) _M_moveXX(a, b, c)
  37 #define _M_assign(a, b, c) _M_assignXX(a, b, c)
  38 #define _M_disjunct(a) _M_disjunctXX(a)
  39 #define _M_check_length(a, b, c) _M_check_lengthXX(a, b, c)
  40 #define _M_set_length_and_sharable(a) _M_set_length_and_sharableXX(a)
  41 #define ignore ignoreXX
  42 #define eq eqXX
  43 #define _List_node_base _List_node_baseXX
  44 #endif
  45
  46 #include <string>
  47 #include <istream>
  48 #include <fstream>
  49 #include <sstream>
  50 #include <cmath>
  51 #include <ext/numeric_traits.h>
  52
  53 namespace std _GLIBCXX_VISIBILITY(default)
  54 {
  55 _GLIBCXX_BEGIN_NAMESPACE_VERSION
  56
  57   // std::istream ignore explicit specializations.
  58   template<>
  59     basic_istream<char>&
  60     basic_istream<char>::
  61     ignore(streamsize __n)
  62     {
  63       if (__n == 1)
  64         return ignore();
  65
  66       _M_gcount = 0;
  67       sentry __cerb(*this, true);
  68       if ( __n > 0 && __cerb)
  69         {
  70           ios_base::iostate __err = ios_base::goodbit;
  71           __try
  72             {
  73               const int_type __eof = traits_type::eof();
  74               __streambuf_type* __sb = this->rdbuf();
  75               int_type __c = __sb->sgetc();
  76
  77               // See comment in istream.tcc.
  78               bool __large_ignore = false;
  79               while (true)
  80                 {
  81                   while (_M_gcount < __n
  82                          && !traits_type::eq_int_type(__c, __eof))
  83                     {
  84                       streamsize __size = std::min(streamsize(__sb->egptr()
  85                                                               - __sb->gptr()),
  86                                                   streamsize(__n - _M_gcount));
  87                       if (__size > 1)
  88                         {
  89                           __sb->__safe_gbump(__size);
  90                           _M_gcount += __size;
  91                           __c = __sb->sgetc();
  92                         }
  93                       else
  94                         {
  95                           ++_M_gcount;
  96                           __c = __sb->snextc();
  97                         }
  98                     }
  99                   if (__n == __gnu_cxx::__numeric_traits<streamsize>::__max
 100                       && !traits_type::eq_int_type(__c, __eof))
 101                     {
 102                       _M_gcount =
 103                         __gnu_cxx::__numeric_traits<streamsize>::__min;
 104                       __large_ignore = true;
 105                     }
 106                   else
 107                     break;
 108                 }
 109
 110               if (__n == __gnu_cxx::__numeric_traits<streamsize>::__max)
 111                 {
 112                   if (__large_ignore)
 113                     _M_gcount = __gnu_cxx::__numeric_traits<streamsize>::__max;
 114
 115                   if (traits_type::eq_int_type(__c, __eof))
 116                     __err |= ios_base::eofbit;
 117                 }
 118               else if (_M_gcount < __n)
 119                 {
 120                   if (traits_type::eq_int_type(__c, __eof))
 121                     __err |= ios_base::eofbit;
 122                 }
 123             }
 124           __catch(__cxxabiv1::__forced_unwind&)
 125             {
 126               this->_M_setstate(ios_base::badbit);
 127               __throw_exception_again;
 128             }
 129           __catch(...)
 130             { this->_M_setstate(ios_base::badbit); }
 131           if (__err)
 132             this->setstate(__err);
 133         }
 134       return *this;
 135     }
 136
 137 #ifdef _GLIBCXX_USE_WCHAR_T
 138   template<>
 139     basic_istream<wchar_t>&
 140     basic_istream<wchar_t>::
 141     ignore(streamsize __n)
 142     {
 143       if (__n == 1)
 144         return ignore();
 145
 146       _M_gcount = 0;
 147       sentry __cerb(*this, true);
 148       if (__n > 0 && __cerb)
 149         {
 150           ios_base::iostate __err = ios_base::goodbit;
 151           __try
 152             {
 153               const int_type __eof = traits_type::eof();
 154               __streambuf_type* __sb = this->rdbuf();
 155               int_type __c = __sb->sgetc();
 156
 157               bool __large_ignore = false;
 158               while (true)
 159                 {
 160                   while (_M_gcount < __n
 161                          && !traits_type::eq_int_type(__c, __eof))
 162                     {
 163                       streamsize __size = std::min(streamsize(__sb->egptr()
 164                                                               - __sb->gptr()),
 165                                                   streamsize(__n - _M_gcount));
 166                       if (__size > 1)
 167                         {
 168                           __sb->__safe_gbump(__size);
 169                           _M_gcount += __size;
 170                           __c = __sb->sgetc();
 171                         }
 172                       else
 173                         {
 174                           ++_M_gcount;
 175                           __c = __sb->snextc();
 176                         }
 177                     }
 178                   if (__n == __gnu_cxx::__numeric_traits<streamsize>::__max
 179                       && !traits_type::eq_int_type(__c, __eof))
 180                     {
 181                       _M_gcount =
 182                         __gnu_cxx::__numeric_traits<streamsize>::__min;
 183                       __large_ignore = true;
 184                     }
 185                   else
 186                     break;
 187                 }
 188
 189               if (__n == __gnu_cxx::__numeric_traits<streamsize>::__max)
 190                 {
 191                   if (__large_ignore)
 192                     _M_gcount = __gnu_cxx::__numeric_traits<streamsize>::__max;
 193
 194                   if (traits_type::eq_int_type(__c, __eof))
 195                     __err |= ios_base::eofbit;
 196                 }
 197               else if (_M_gcount < __n)
 198                 {
 199                   if (traits_type::eq_int_type(__c, __eof))
 200                     __err |= ios_base::eofbit;
 201                 }
 202             }
 203           __catch(__cxxabiv1::__forced_unwind&)
 204             {
 205               this->_M_setstate(ios_base::badbit);
 206               __throw_exception_again;
 207             }
 208           __catch(...)
 209             { this->_M_setstate(ios_base::badbit); }
 210           if (__err)
 211             this->setstate(__err);
 212         }
 213       return *this;
 214     }
 215 #endif
 216
 217 _GLIBCXX_END_NAMESPACE_VERSION
 218 } // namespace std
 219
 220
 221 // NB: These symbols renames should go into the shared library only,
 222 // and only those shared libraries that support versioning.
 223 #if defined(_GLIBCXX_SYMVER_GNU) && defined(_GLIBCXX_SHARED) \
 224     && defined(_GLIBCXX_HAVE_AS_SYMVER_DIRECTIVE) \
 225     && defined(_GLIBCXX_HAVE_SYMVER_SYMBOL_RENAMING_RUNTIME_SUPPORT)
 226
 227 /* gcc-3.4.4
 228 _ZNSt19istreambuf_iteratorIcSt11char_traitsIcEEppEv
 229 _ZNSt19istreambuf_iteratorIwSt11char_traitsIwEEppEv
 230  */
 231
 232 namespace std _GLIBCXX_VISIBILITY(default)
 233 {
 234 _GLIBCXX_BEGIN_NAMESPACE_VERSION
 235
 236   template
 237     istreambuf_iterator<char>&
 238     istreambuf_iterator<char>::operator++();
 239
 240 #ifdef _GLIBCXX_USE_WCHAR_T
 241   template
 242     istreambuf_iterator<wchar_t>&
 243     istreambuf_iterator<wchar_t>::operator++();
 244 #endif
 245
 246 _GLIBCXX_END_NAMESPACE_VERSION
 247 } // namespace std
 248
 249
 250 /* gcc-4.0.0
 251 _ZNSs4_Rep26_M_set_length_and_sharableEj
 252 _ZNSs7_M_copyEPcPKcj
 253 _ZNSs7_M_moveEPcPKcj
 254 _ZNSs9_M_assignEPcjc
 255 _ZNKSs11_M_disjunctEPKc
 256 _ZNKSs15_M_check_lengthEjjPKc
 257 _ZNSbIwSt11char_traitsIwESaIwEE4_Rep26_M_set_length_and_sharableEj
 258 _ZNSbIwSt11char_traitsIwESaIwEE7_M_copyEPwPKwj
 259 _ZNSbIwSt11char_traitsIwESaIwEE7_M_moveEPwPKwj
 260 _ZNSbIwSt11char_traitsIwESaIwEE9_M_assignEPwjw
 261 _ZNKSbIwSt11char_traitsIwESaIwEE11_M_disjunctEPKw
 262 _ZNKSbIwSt11char_traitsIwESaIwEE15_M_check_lengthEjjPKc
 263
 264 _ZNKSt13basic_fstreamIcSt11char_traitsIcEE7is_openEv
 265 _ZNKSt13basic_fstreamIwSt11char_traitsIwEE7is_openEv
 266 _ZNKSt14basic_ifstreamIcSt11char_traitsIcEE7is_openEv
 267 _ZNKSt14basic_ifstreamIwSt11char_traitsIwEE7is_openEv
 268 _ZNKSt14basic_ofstreamIcSt11char_traitsIcEE7is_openEv
 269 _ZNKSt14basic_ofstreamIwSt11char_traitsIwEE7is_openEv
 270
 271 _ZNSi6ignoreEi
 272 _ZNSi6ignoreEv
 273 _ZNSt13basic_istreamIwSt11char_traitsIwEE6ignoreEi
 274 _ZNSt13basic_istreamIwSt11char_traitsIwEE6ignoreEv
 275
 276 _ZNSt11char_traitsIcE2eqERKcS2_
 277 _ZNSt11char_traitsIwE2eqERKwS2_
 278  */
 279 namespace std _GLIBCXX_VISIBILITY(default)
 280 {
 281 _GLIBCXX_BEGIN_NAMESPACE_VERSION
 282
 283   // std::char_traits is explicitly specialized
 284   bool (* __p1)(const char&, const char&) = &char_traits<char>::eq;
 285
 286   // std::string
 287   template
 288     void
 289     basic_string<char>::_M_copy(char*, const char*, size_t);
 290
 291   template
 292     void
 293     basic_string<char>::_M_move(char*, const char*, size_t);
 294
 295   template
 296     void
 297     basic_string<char>::_M_assign(char*, size_t, char);
 298
 299   template
 300     bool
 301     basic_string<char>::_M_disjunct(const char*) const;
 302
 303   template
 304     void
 305     basic_string<char>::_M_check_length(size_t, size_t, const char*) const;
 306
 307   template
 308     void
 309     basic_string<char>::_Rep::_M_set_length_and_sharable(size_t);
 310
 311
 312   // std::istream
 313   template
 314     basic_istream<char>&
 315     basic_istream<char>::ignore();
 316
 317   template
 318     bool
 319     basic_fstream<char>::is_open() const;
 320
 321   template
 322     bool
 323     basic_ifstream<char>::is_open() const;
 324
 325   template
 326     bool
 327     basic_ofstream<char>::is_open() const;
 328
 329 #ifdef _GLIBCXX_USE_WCHAR_T
 330   bool (* __p2)(const wchar_t&, const wchar_t&) = &char_traits<wchar_t>::eq;
 331
 332   // std::wstring
 333   template
 334     void
 335     basic_string<wchar_t>::_M_copy(wchar_t*, const wchar_t*, size_t);
 336
 337   template
 338     void
 339     basic_string<wchar_t>::_M_move(wchar_t*, const wchar_t*, size_t);
 340
 341   template
 342     void
 343     basic_string<wchar_t>::_M_assign(wchar_t*, size_t, wchar_t);
 344
 345   template
 346     bool
 347     basic_string<wchar_t>::_M_disjunct(const wchar_t*) const;
 348
 349   template
 350     void
 351     basic_string<wchar_t>::_M_check_length(size_t, size_t,
 352                                            const char*) const;
 353
 354   template
 355     void
 356     basic_string<wchar_t>::_Rep::_M_set_length_and_sharable(size_t);
 357
 358   template
 359     basic_istream<wchar_t>&
 360     basic_istream<wchar_t>::ignore();
 361
 362   template
 363     bool
 364     basic_fstream<wchar_t>::is_open() const;
 365
 366   template
 367     bool
 368     basic_ifstream<wchar_t>::is_open() const;
 369
 370   template
 371     bool
 372     basic_ofstream<wchar_t>::is_open() const;
 373 #endif
 374
 375 _GLIBCXX_END_NAMESPACE_VERSION
 376 } // namespace std
 377
 378 // The rename syntax for default exported names is
 379 //   asm (".symver name1,exportedname@GLIBCXX_3.4")
 380 //   asm (".symver name2,exportedname@@GLIBCXX_3.4.5")
 381 // In the future, GLIBCXX_ABI > 6 should remove all uses of
 382 // _GLIBCXX_*_SYMVER macros in this file.
 383
 384 #define _GLIBCXX_3_4_SYMVER(XXname, name) \
 385    extern "C" void \
 386    _X##name(...) \
 387    __attribute__ ((alias(#XXname))); \
 388    asm (".symver " "_X" #name "," #name "@GLIBCXX_3.4");
 389
 390 #define _GLIBCXX_3_4_5_SYMVER(XXname, name) \
 391    extern "C" void \
 392    _Y##name(...) \
 393    __attribute__ ((alias(#XXname))); \
 394    asm (".symver " "_Y" #name  "," #name "@@GLIBCXX_3.4.5");
 395
 396 #define _GLIBCXX_ASM_SYMVER(cur, old, version) \
 397    asm (".symver " #cur "," #old "@@" #version);
 398
 399 #define _GLIBCXX_APPLY_SYMVER _GLIBCXX_3_4_SYMVER
 400 #include <bits/compatibility.h>
 401 #undef _GLIBCXX_APPLY_SYMVER
 402
 403 #define _GLIBCXX_APPLY_SYMVER _GLIBCXX_3_4_5_SYMVER
 404 #include <bits/compatibility.h>
 405 #undef _GLIBCXX_APPLY_SYMVER
 406
 407
 408 /* gcc-3.4.0
 409 _ZN10__gnu_norm15_List_node_base4hookEPS0_;
 410 _ZN10__gnu_norm15_List_node_base4swapERS0_S1_;
 411 _ZN10__gnu_norm15_List_node_base6unhookEv;
 412 _ZN10__gnu_norm15_List_node_base7reverseEv;
 413 _ZN10__gnu_norm15_List_node_base8transferEPS0_S1_;
 414 */
 415 #include "list.cc"
 416 _GLIBCXX_ASM_SYMVER(_ZNSt8__detail17_List_node_baseXX7_M_hookEPS0_, \
 417 _ZN10__gnu_norm15_List_node_base4hookEPS0_, \
 418 GLIBCXX_3.4)
 419
 420 _GLIBCXX_ASM_SYMVER(_ZNSt8__detail17_List_node_baseXX4swapERS0_S1_, \
 421 _ZN10__gnu_norm15_List_node_base4swapERS0_S1_, \
 422 GLIBCXX_3.4)
 423
 424 _GLIBCXX_ASM_SYMVER(_ZNSt8__detail17_List_node_baseXX9_M_unhookEv, \
 425 _ZN10__gnu_norm15_List_node_base6unhookEv, \
 426 GLIBCXX_3.4)
 427
 428 _GLIBCXX_ASM_SYMVER(_ZNSt8__detail17_List_node_baseXX10_M_reverseEv, \
 429 _ZN10__gnu_norm15_List_node_base7reverseEv, \
 430 GLIBCXX_3.4)
 431
 432 _GLIBCXX_ASM_SYMVER(_ZNSt8__detail17_List_node_baseXX11_M_transferEPS0_S1_, \
 433 _ZN10__gnu_norm15_List_node_base8transferEPS0_S1_, \
 434 GLIBCXX_3.4)
 435 #undef _List_node_base
 436
 437 // gcc-4.1.0
 438 // Long double versions of "C" math functions.
 439 #if defined (_GLIBCXX_LONG_DOUBLE_COMPAT) \
 440     || (defined (__arm__) && defined (__linux__) && defined (__ARM_EABI__)) \
 441     || (defined (__hppa__) && defined (__linux__)) \
 442     || (defined (__m68k__) && defined (__mcoldfire__) && defined (__linux__)) \
 443     || (defined (__mips__) && defined (_ABIO32) && defined (__linux__)) \
 444     || (defined (__sh__) && defined (__linux__) && __SIZEOF_SIZE_T__ == 4) \
 445
 446 #define _GLIBCXX_MATHL_WRAPPER(name, argdecl, args, ver) \
 447 extern "C" double                                               \
 448 __ ## name ## l_wrapper argdecl                                 \
 449 {                                                               \
 450   return name args;                                             \
 451 }                                                               \
 452 asm (".symver __" #name "l_wrapper, " #name "l@" #ver)
 453
 454 #define _GLIBCXX_MATHL_WRAPPER1(name, ver) \
 455   _GLIBCXX_MATHL_WRAPPER (name, (double x), (x), ver)
 456
 457 #define _GLIBCXX_MATHL_WRAPPER2(name, ver) \
 458   _GLIBCXX_MATHL_WRAPPER (name, (double x, double y), (x, y), ver)
 459
 460 #ifdef _GLIBCXX_HAVE_ACOSL
 461 _GLIBCXX_MATHL_WRAPPER1 (acos, GLIBCXX_3.4.3);
 462 #endif
 463 #ifdef _GLIBCXX_HAVE_ASINL
 464 _GLIBCXX_MATHL_WRAPPER1 (asin, GLIBCXX_3.4.3);
 465 #endif
 466 #ifdef _GLIBCXX_HAVE_ATAN2L
 467 _GLIBCXX_MATHL_WRAPPER2 (atan2, GLIBCXX_3.4);
 468 #endif
 469 #ifdef _GLIBCXX_HAVE_ATANL
 470 _GLIBCXX_MATHL_WRAPPER1 (atan, GLIBCXX_3.4.3);
 471 #endif
 472 #ifdef _GLIBCXX_HAVE_CEILL
 473 _GLIBCXX_MATHL_WRAPPER1 (ceil, GLIBCXX_3.4.3);
 474 #endif
 475 #ifdef _GLIBCXX_HAVE_COSHL
 476 _GLIBCXX_MATHL_WRAPPER1 (cosh, GLIBCXX_3.4);
 477 #endif
 478 #ifdef _GLIBCXX_HAVE_COSL
 479 _GLIBCXX_MATHL_WRAPPER1 (cos, GLIBCXX_3.4);
 480 #endif
 481 #ifdef _GLIBCXX_HAVE_EXPL
 482 _GLIBCXX_MATHL_WRAPPER1 (exp, GLIBCXX_3.4);
 483 #endif
 484 #ifdef _GLIBCXX_HAVE_FLOORL
 485 _GLIBCXX_MATHL_WRAPPER1 (floor, GLIBCXX_3.4.3);
 486 #endif
 487 #ifdef _GLIBCXX_HAVE_FMODL
 488 _GLIBCXX_MATHL_WRAPPER2 (fmod, GLIBCXX_3.4.3);
 489 #endif
 490 #ifdef _GLIBCXX_HAVE_FREXPL
 491 _GLIBCXX_MATHL_WRAPPER (frexp, (double x, int *y), (x, y), GLIBCXX_3.4.3);
 492 #endif
 493 #ifdef _GLIBCXX_HAVE_HYPOTL
 494 _GLIBCXX_MATHL_WRAPPER2 (hypot, GLIBCXX_3.4);
 495 #endif
 496 #ifdef _GLIBCXX_HAVE_LDEXPL
 497 _GLIBCXX_MATHL_WRAPPER (ldexp, (double x, int y), (x, y), GLIBCXX_3.4.3);
 498 #endif
 499 #ifdef _GLIBCXX_HAVE_LOG10L
 500 _GLIBCXX_MATHL_WRAPPER1 (log10, GLIBCXX_3.4);
 501 #endif
 502 #ifdef _GLIBCXX_HAVE_LOGL
 503 _GLIBCXX_MATHL_WRAPPER1 (log, GLIBCXX_3.4);
 504 #endif
 505 #ifdef _GLIBCXX_HAVE_MODFL
 506 _GLIBCXX_MATHL_WRAPPER (modf, (double x, double *y), (x, y), GLIBCXX_3.4.3);
 507 #endif
 508 #ifdef _GLIBCXX_HAVE_POWL
 509 _GLIBCXX_MATHL_WRAPPER2 (pow, GLIBCXX_3.4);
 510 #endif
 511 #ifdef _GLIBCXX_HAVE_SINHL
 512 _GLIBCXX_MATHL_WRAPPER1 (sinh, GLIBCXX_3.4);
 513 #endif
 514 #ifdef _GLIBCXX_HAVE_SINL
 515 _GLIBCXX_MATHL_WRAPPER1 (sin, GLIBCXX_3.4);
 516 #endif
 517 #ifdef _GLIBCXX_HAVE_SQRTL
 518 _GLIBCXX_MATHL_WRAPPER1 (sqrt, GLIBCXX_3.4);
 519 #endif
 520 #ifdef _GLIBCXX_HAVE_TANHL
 521 _GLIBCXX_MATHL_WRAPPER1 (tanh, GLIBCXX_3.4);
 522 #endif
 523 #ifdef _GLIBCXX_HAVE_TANL
 524 _GLIBCXX_MATHL_WRAPPER1 (tan, GLIBCXX_3.4);
 525 #endif
 526 #endif // _GLIBCXX_LONG_DOUBLE_COMPAT
 527
 528 #endif
 529
 530 #ifdef _GLIBCXX_LONG_DOUBLE_COMPAT
 531 extern void *_ZTVN10__cxxabiv123__fundamental_type_infoE[];
 532 extern void *_ZTVN10__cxxabiv119__pointer_type_infoE[];
 533 extern __attribute__((used, weak)) const char _ZTSe[2] = "e";
 534 extern __attribute__((used, weak)) const char _ZTSPe[3] = "Pe";
 535 extern __attribute__((used, weak)) const char _ZTSPKe[4] = "PKe";
 536 extern __attribute__((used, weak)) const void * const _ZTIe[2]
 537   = { reinterpret_cast<const void *>
 538       (&_ZTVN10__cxxabiv123__fundamental_type_infoE[2]),
 539       reinterpret_cast<const void *>(_ZTSe) };
 540 extern __attribute__((used, weak)) const void * const _ZTIPe[4]
 541   = { reinterpret_cast<const void *>
 542       (&_ZTVN10__cxxabiv119__pointer_type_infoE[2]),
 543       reinterpret_cast<const void *>(_ZTSPe),
 544       reinterpret_cast<const void *>(0L),
 545       reinterpret_cast<const void *>(_ZTIe) };
 546 extern __attribute__((used, weak)) const void * const _ZTIPKe[4]
 547   = { reinterpret_cast<const void *>
 548       (&_ZTVN10__cxxabiv119__pointer_type_infoE[2]),
 549       reinterpret_cast<const void *>(_ZTSPKe),
 550       reinterpret_cast<const void *>(1L),
 551       reinterpret_cast<const void *>(_ZTIe) };
 552 #endif // _GLIBCXX_LONG_DOUBLE_COMPAT
 553
 554 #ifdef _GLIBCXX_SYMVER_DARWIN
 555 #if (defined(__ppc__) || defined(__ppc64__)) && defined(_GLIBCXX_SHARED)
 556 /* __eprintf shouldn't have been made visible from libstdc++, or
 557    anywhere, but on Mac OS X 10.4 it was defined in
 558    libstdc++.6.0.3.dylib; so on that platform we have to keep defining
 559    it to keep binary compatibility.  We can't just put the libgcc
 560    version in the export list, because that doesn't work; once a
 561    symbol is marked as hidden, it stays that way.  */
 562
 563 #include <cstdio>
 564 #include <cstdlib>
 565
 566 using namespace std;
 567
 568 extern "C" void
 569 __eprintf(const char *string, const char *expression,
 570           unsigned int line, const char *filename)
 571 {
 572   fprintf(stderr, string, expression, line, filename);
 573   fflush(stderr);
 574   abort();
 575 }
 576 #endif
 577 #endif