Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Blame | Last modification | View Log | RSS feed

  1. // Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2007,
  2. // 2009, 2010
  3. // Free Software Foundation
  4. //
  5. // This file is part of GCC.
  6. //
  7. // GCC is free software; you can redistribute it and/or modify
  8. // it under the terms of the GNU General Public License as published by
  9. // the Free Software Foundation; either version 3, or (at your option)
  10. // any later version.
  11.  
  12. // GCC 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.
  16.  
  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.
  20.  
  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/>.
  25.  
  26. #include "tinfo.h"
  27.  
  28. namespace __cxxabiv1 {
  29.  
  30. __pbase_type_info::
  31. ~__pbase_type_info ()
  32. {}
  33.  
  34. bool __pbase_type_info::
  35. __do_catch (const type_info *thr_type,
  36.             void **thr_obj,
  37.             unsigned outer) const
  38. {
  39.   if (*this == *thr_type)
  40.     return true;      // same type
  41.  
  42. #ifdef __GXX_RTTI
  43.   if (typeid (*this) != typeid (*thr_type))
  44.     return false;     // not both same kind of pointers
  45. #endif
  46.  
  47.   if (!(outer & 1))
  48.     // We're not the same and our outer pointers are not all const qualified
  49.     // Therefore there must at least be a qualification conversion involved
  50.     // But for that to be valid, our outer pointers must be const qualified.
  51.     return false;
  52.  
  53.   const __pbase_type_info *thrown_type =
  54.     static_cast <const __pbase_type_info *> (thr_type);
  55.  
  56.   if (thrown_type->__flags & ~__flags)
  57.     // We're less qualified.
  58.     return false;
  59.  
  60.   if (!(__flags & __const_mask))
  61.     outer &= ~1;
  62.  
  63.   return __pointer_catch (thrown_type, thr_obj, outer);
  64. }
  65.  
  66. }
  67.