1// Methods for type_info for -*- C++ -*- Run Time Type Identification.
2// Copyright (C) 1994-2017 Free Software Foundation, Inc.
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 <bits/c++config.h>
26#include <cstddef>
27#include "tinfo.h"
28
29std::type_info::
30~type_info ()
31{ }
32
33#if !__GXX_TYPEINFO_EQUALITY_INLINE
34
35// We can't rely on common symbols being shared between shared objects.
36bool std::type_info::
37operator== (const std::type_info& arg) const _GLIBCXX_NOEXCEPT
38{
39#if __GXX_MERGED_TYPEINFO_NAMES
40 return name () == arg.name ();
41#else
42 /* The name() method will strip any leading '*' prefix. Therefore
43 take care to look at __name rather than name() when looking for
44 the "pointer" prefix. */
45 return (&arg == this)
46 || (__name[0] != '*' && (__builtin_strcmp (name (), arg.name ()) == 0));
47#endif
48}
49
50#endif
51
52namespace std {
53
54// return true if this is a type_info for a pointer type
55bool type_info::
56__is_pointer_p () const
57{
58 return false;
59}
60
61// return true if this is a type_info for a function type
62bool type_info::
63__is_function_p () const
64{
65 return false;
66}
67
68// try and catch a thrown object.
69bool type_info::
70__do_catch (const type_info *thr_type, void **, unsigned) const
71{
72 return *this == *thr_type;
73}
74
75// upcast from this type to the target. __class_type_info will override
76bool type_info::
77__do_upcast (const abi::__class_type_info *, void **) const
78{
79 return false;
80}
81
82}
83