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  1. // Copyright (C) 1994-2013 Free Software Foundation, Inc.
  2. //
  3. // This file is part of GCC.
  4. //
  5. // GCC is free software; you can redistribute it and/or modify
  6. // it under the terms of the GNU General Public License as published by
  7. // the Free Software Foundation; either version 3, or (at your option)
  8. // any later version.
  9.  
  10. // GCC is distributed in the hope that it will be useful,
  11. // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12. // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13. // GNU General Public License for more details.
  14.  
  15. // Under Section 7 of GPL version 3, you are granted additional
  16. // permissions described in the GCC Runtime Library Exception, version
  17. // 3.1, as published by the Free Software Foundation.
  18.  
  19. // You should have received a copy of the GNU General Public License and
  20. // a copy of the GCC Runtime Library Exception along with this program;
  21. // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  22. // <http://www.gnu.org/licenses/>.
  23.  
  24. #include "tinfo.h"
  25.  
  26. namespace __cxxabiv1 {
  27.  
  28. __si_class_type_info::
  29. ~__si_class_type_info ()
  30. {}
  31.  
  32. __class_type_info::__sub_kind __si_class_type_info::
  33. __do_find_public_src (ptrdiff_t src2dst,
  34.                       const void *obj_ptr,
  35.                       const __class_type_info *src_type,
  36.                       const void *src_ptr) const
  37. {
  38.   if (src_ptr == obj_ptr && *this == *src_type)
  39.     return __contained_public;
  40.   return __base_type->__do_find_public_src (src2dst, obj_ptr, src_type, src_ptr);
  41. }
  42.  
  43. bool __si_class_type_info::
  44. __do_dyncast (ptrdiff_t src2dst,
  45.               __sub_kind access_path,
  46.               const __class_type_info *dst_type,
  47.               const void *obj_ptr,
  48.               const __class_type_info *src_type,
  49.               const void *src_ptr,
  50.               __dyncast_result &__restrict result) const
  51. {
  52.   if (*this == *dst_type)
  53.     {
  54.       result.dst_ptr = obj_ptr;
  55.       result.whole2dst = access_path;
  56.       if (src2dst >= 0)
  57.         result.dst2src = adjust_pointer <void> (obj_ptr, src2dst) == src_ptr
  58.               ? __contained_public : __not_contained;
  59.       else if (src2dst == -2)
  60.         result.dst2src = __not_contained;
  61.       return false;
  62.     }
  63.   if (obj_ptr == src_ptr && *this == *src_type)
  64.     {
  65.       // The src object we started from. Indicate how we are accessible from
  66.       // the most derived object.
  67.       result.whole2src = access_path;
  68.       return false;
  69.     }
  70.   return __base_type->__do_dyncast (src2dst, access_path, dst_type, obj_ptr,
  71.                              src_type, src_ptr, result);
  72. }
  73.  
  74. bool __si_class_type_info::
  75. __do_upcast (const __class_type_info *dst, const void *obj_ptr,
  76.              __upcast_result &__restrict result) const
  77. {
  78.   if (__class_type_info::__do_upcast (dst, obj_ptr, result))
  79.     return true;
  80.  
  81.   return __base_type->__do_upcast (dst, obj_ptr, result);
  82. }
  83.  
  84. }
  85.