83 lines
2.3 KiB
C++
83 lines
2.3 KiB
C++
// Methods for type_info for -*- C++ -*- Run Time Type Identification.
|
|
// Copyright (C) 1994-2018 Free Software Foundation, Inc.
|
|
//
|
|
// This file is part of GCC.
|
|
//
|
|
// GCC is free software; you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation; either version 3, or (at your option)
|
|
// any later version.
|
|
|
|
// GCC is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// Under Section 7 of GPL version 3, you are granted additional
|
|
// permissions described in the GCC Runtime Library Exception, version
|
|
// 3.1, as published by the Free Software Foundation.
|
|
|
|
// You should have received a copy of the GNU General Public License and
|
|
// a copy of the GCC Runtime Library Exception along with this program;
|
|
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
// <http://www.gnu.org/licenses/>.
|
|
|
|
#include <bits/c++config.h>
|
|
#include <cstddef>
|
|
#include "tinfo.h"
|
|
|
|
std::type_info::
|
|
~type_info ()
|
|
{ }
|
|
|
|
#if !__GXX_TYPEINFO_EQUALITY_INLINE
|
|
|
|
// We can't rely on common symbols being shared between shared objects.
|
|
bool std::type_info::
|
|
operator== (const std::type_info& arg) const _GLIBCXX_NOEXCEPT
|
|
{
|
|
#if __GXX_MERGED_TYPEINFO_NAMES
|
|
return name () == arg.name ();
|
|
#else
|
|
/* The name() method will strip any leading '*' prefix. Therefore
|
|
take care to look at __name rather than name() when looking for
|
|
the "pointer" prefix. */
|
|
return (&arg == this)
|
|
|| (__name[0] != '*' && (__builtin_strcmp (name (), arg.name ()) == 0));
|
|
#endif
|
|
}
|
|
|
|
#endif
|
|
|
|
namespace std {
|
|
|
|
// return true if this is a type_info for a pointer type
|
|
bool type_info::
|
|
__is_pointer_p () const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// return true if this is a type_info for a function type
|
|
bool type_info::
|
|
__is_function_p () const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// try and catch a thrown object.
|
|
bool type_info::
|
|
__do_catch (const type_info *thr_type, void **, unsigned) const
|
|
{
|
|
return *this == *thr_type;
|
|
}
|
|
|
|
// upcast from this type to the target. __class_type_info will override
|
|
bool type_info::
|
|
__do_upcast (const abi::__class_type_info *, void **) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
}
|