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  1. // Methods for type_info for -*- C++ -*- Run Time Type Identification.
  2. // Copyright (C) 1994-2013 Free Software Foundation, Inc.
  3. //
  4. // This file is part of GCC.
  5. //
  6. // GCC is free software; you can redistribute it and/or modify
  7. // it under the terms of the GNU General Public License as published by
  8. // the Free Software Foundation; either version 3, or (at your option)
  9. // any later version.
  10.  
  11. // GCC 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. #include <bits/c++config.h>
  26. #include <cstddef>
  27. #include "tinfo.h"
  28.  
  29. std::type_info::
  30. ~type_info ()
  31. { }
  32.  
  33. #if !__GXX_TYPEINFO_EQUALITY_INLINE
  34.  
  35. // We can't rely on common symbols being shared between shared objects.
  36. bool std::type_info::
  37. operator== (const std::type_info& arg) const _GLIBCXX_NOEXCEPT
  38. {
  39. #if __GXX_MERGED_TYPEINFO_NAMES
  40.   return name () == arg.name ();
  41. #else
  42.   /* The name() method will strip any leading '*' prefix. Therefore
  43.      take care to look at __name rather than name() when looking for
  44.      the "pointer" prefix.  */
  45.   return (&arg == this)
  46.     || (__name[0] != '*' && (__builtin_strcmp (name (), arg.name ()) == 0));
  47. #endif
  48. }
  49.  
  50. #endif
  51.  
  52. namespace std {
  53.  
  54. // return true if this is a type_info for a pointer type
  55. bool type_info::
  56. __is_pointer_p () const
  57. {
  58.   return false;
  59. }
  60.  
  61. // return true if this is a type_info for a function type
  62. bool type_info::
  63. __is_function_p () const
  64. {
  65.   return false;
  66. }
  67.  
  68. // try and catch a thrown object.
  69. bool type_info::
  70. __do_catch (const type_info *thr_type, void **, unsigned) const
  71. {
  72.   return *this == *thr_type;
  73. }
  74.  
  75. // upcast from this type to the target. __class_type_info will override
  76. bool type_info::
  77. __do_upcast (const abi::__class_type_info *, void **) const
  78. {
  79.   return false;
  80. }
  81.  
  82. }
  83.