1 // Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2007, 2009 2 // Free Software Foundation 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 "tinfo.h" 26 27 namespace __cxxabiv1 { 28 29 __si_class_type_info:: 30 ~__si_class_type_info () 31 {} 32 33 __class_type_info::__sub_kind __si_class_type_info:: 34 __do_find_public_src (ptrdiff_t src2dst, 35 const void *obj_ptr, 36 const __class_type_info *src_type, 37 const void *src_ptr) const 38 { 39 if (src_ptr == obj_ptr && *this == *src_type) 40 return __contained_public; 41 return __base_type->__do_find_public_src (src2dst, obj_ptr, src_type, src_ptr); 42 } 43 44 bool __si_class_type_info:: 45 __do_dyncast (ptrdiff_t src2dst, 46 __sub_kind access_path, 47 const __class_type_info *dst_type, 48 const void *obj_ptr, 49 const __class_type_info *src_type, 50 const void *src_ptr, 51 __dyncast_result &__restrict result) const 52 { 53 if (*this == *dst_type) 54 { 55 result.dst_ptr = obj_ptr; 56 result.whole2dst = access_path; 57 if (src2dst >= 0) 58 result.dst2src = adjust_pointer <void> (obj_ptr, src2dst) == src_ptr 59 ? __contained_public : __not_contained; 60 else if (src2dst == -2) 61 result.dst2src = __not_contained; 62 return false; 63 } 64 if (obj_ptr == src_ptr && *this == *src_type) 65 { 66 // The src object we started from. Indicate how we are accessible from 67 // the most derived object. 68 result.whole2src = access_path; 69 return false; 70 } 71 return __base_type->__do_dyncast (src2dst, access_path, dst_type, obj_ptr, 72 src_type, src_ptr, result); 73 } 74 75 bool __si_class_type_info:: 76 __do_upcast (const __class_type_info *dst, const void *obj_ptr, 77 __upcast_result &__restrict result) const 78 { 79 if (__class_type_info::__do_upcast (dst, obj_ptr, result)) 80 return true; 81 82 return __base_type->__do_upcast (dst, obj_ptr, result); 83 } 84 85 } 86