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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/libsupc++/si_class_type_info.cc
1 // Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2007
2 // Free Software Foundation
4 // This file is part of GCC.
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 2, or (at your option)
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.
16 // You should have received a copy of the GNU General Public License
17 // along with GCC; see the file COPYING. If not, write to
18 // the Free Software Foundation, 51 Franklin Street, Fifth Floor,
19 // Boston, MA 02110-1301, USA.
21 // As a special exception, you may use this file as part of a free software
22 // library without restriction. Specifically, if other files instantiate
23 // templates or use macros or inline enums from this file, or you compile
24 // this file and link it with other files to produce an executable, this
25 // file does not by itself cause the resulting executable to be covered by
26 // the GNU General Public License. This exception does not however
27 // invalidate any other reasons why the executable file might be covered by
28 // the GNU General Public License.
32 namespace __cxxabiv1
{
34 __si_class_type_info::
35 ~__si_class_type_info ()
38 __class_type_info::__sub_kind
__si_class_type_info::
39 __do_find_public_src (ptrdiff_t src2dst
,
41 const __class_type_info
*src_type
,
42 const void *src_ptr
) const
44 if (src_ptr
== obj_ptr
&& *this == *src_type
)
45 return __contained_public
;
46 return __base_type
->__do_find_public_src (src2dst
, obj_ptr
, src_type
, src_ptr
);
49 bool __si_class_type_info::
50 __do_dyncast (ptrdiff_t src2dst
,
51 __sub_kind access_path
,
52 const __class_type_info
*dst_type
,
54 const __class_type_info
*src_type
,
56 __dyncast_result
&__restrict result
) const
58 if (*this == *dst_type
)
60 result
.dst_ptr
= obj_ptr
;
61 result
.whole2dst
= access_path
;
63 result
.dst2src
= adjust_pointer
<void> (obj_ptr
, src2dst
) == src_ptr
64 ? __contained_public
: __not_contained
;
65 else if (src2dst
== -2)
66 result
.dst2src
= __not_contained
;
69 if (obj_ptr
== src_ptr
&& *this == *src_type
)
71 // The src object we started from. Indicate how we are accessible from
72 // the most derived object.
73 result
.whole2src
= access_path
;
76 return __base_type
->__do_dyncast (src2dst
, access_path
, dst_type
, obj_ptr
,
77 src_type
, src_ptr
, result
);
80 bool __si_class_type_info::
81 __do_upcast (const __class_type_info
*dst
, const void *obj_ptr
,
82 __upcast_result
&__restrict result
) const
84 if (__class_type_info::__do_upcast (dst
, obj_ptr
, result
))
87 return __base_type
->__do_upcast (dst
, obj_ptr
, result
);