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1 // Methods for type_info for -*- C++ -*- Run Time Type Identification. | |
2 // Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, | |
3 // 2003, 2004, 2005, 2006, 2007, 2009 | |
4 // Free Software Foundation | |
5 // | |
6 // This file is part of GCC. | |
7 // | |
8 // GCC is free software; you can redistribute it and/or modify | |
9 // it under the terms of the GNU General Public License as published by | |
10 // the Free Software Foundation; either version 3, or (at your option) | |
11 // any later version. | |
12 | |
13 // GCC is distributed in the hope that it will be useful, | |
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 // GNU General Public License for more details. | |
17 | |
18 // Under Section 7 of GPL version 3, you are granted additional | |
19 // permissions described in the GCC Runtime Library Exception, version | |
20 // 3.1, as published by the Free Software Foundation. | |
21 | |
22 // You should have received a copy of the GNU General Public License and | |
23 // a copy of the GCC Runtime Library Exception along with this program; | |
24 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
25 // <http://www.gnu.org/licenses/>. | |
26 | |
27 #include <bits/c++config.h> | |
28 #include <cstddef> | |
29 #include "tinfo.h" | |
30 | |
31 std::type_info:: | |
32 ~type_info () | |
33 { } | |
34 | |
35 #if !__GXX_TYPEINFO_EQUALITY_INLINE | |
36 | |
37 // We can't rely on common symbols being shared between shared objects. | |
38 bool std::type_info:: | |
39 operator== (const std::type_info& arg) const | |
40 { | |
41 #if __GXX_MERGED_TYPEINFO_NAMES | |
42 return name () == arg.name (); | |
43 #else | |
44 return (&arg == this) || (__builtin_strcmp (name (), arg.name ()) == 0); | |
45 #endif | |
46 } | |
47 | |
48 #endif | |
49 | |
50 namespace std { | |
51 | |
52 // return true if this is a type_info for a pointer type | |
53 bool type_info:: | |
54 __is_pointer_p () const | |
55 { | |
56 return false; | |
57 } | |
58 | |
59 // return true if this is a type_info for a function type | |
60 bool type_info:: | |
61 __is_function_p () const | |
62 { | |
63 return false; | |
64 } | |
65 | |
66 // try and catch a thrown object. | |
67 bool type_info:: | |
68 __do_catch (const type_info *thr_type, void **, unsigned) const | |
69 { | |
70 return *this == *thr_type; | |
71 } | |
72 | |
73 // upcast from this type to the target. __class_type_info will override | |
74 bool type_info:: | |
75 __do_upcast (const abi::__class_type_info *, void **) const | |
76 { | |
77 return false; | |
78 } | |
79 | |
80 } | |
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