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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/libsupc++/pbase_type_info.cc
1 // Copyright (C) 1994, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2007, 2009
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 3, 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 // 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.
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/>.
27 namespace __cxxabiv1
{
33 bool __pbase_type_info::
34 __do_catch (const type_info
*thr_type
,
38 if (*this == *thr_type
)
39 return true; // same type
40 if (typeid (*this) != typeid (*thr_type
))
41 return false; // not both same kind of pointers
44 // We're not the same and our outer pointers are not all const qualified
45 // Therefore there must at least be a qualification conversion involved
46 // But for that to be valid, our outer pointers must be const qualified.
49 const __pbase_type_info
*thrown_type
=
50 static_cast <const __pbase_type_info
*> (thr_type
);
52 if (thrown_type
->__flags
& ~__flags
)
53 // We're less qualified.
56 if (!(__flags
& __const_mask
))
59 return __pointer_catch (thrown_type
, thr_obj
, outer
);