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aa118a03 | 1 | // Copyright (C) 1994-2014 Free Software Foundation, Inc. |
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2 | // |
3 | // This file is part of GCC. | |
4 | // | |
5 | // GCC is free software; you can redistribute it and/or modify | |
6 | // it under the terms of the GNU General Public License as published by | |
748086b7 | 7 | // the Free Software Foundation; either version 3, or (at your option) |
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8 | // any later version. |
9 | ||
10 | // GCC is distributed in the hope that it will be useful, | |
11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | // GNU General Public License for more details. | |
14 | ||
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15 | // Under Section 7 of GPL version 3, you are granted additional |
16 | // permissions described in the GCC Runtime Library Exception, version | |
17 | // 3.1, as published by the Free Software Foundation. | |
bd994a48 | 18 | |
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19 | // You should have received a copy of the GNU General Public License and |
20 | // a copy of the GCC Runtime Library Exception along with this program; | |
21 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
22 | // <http://www.gnu.org/licenses/>. | |
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23 | |
24 | #include "tinfo.h" | |
25 | ||
26 | namespace __cxxabiv1 { | |
27 | ||
28 | __pbase_type_info:: | |
29 | ~__pbase_type_info () | |
30 | {} | |
31 | ||
32 | bool __pbase_type_info:: | |
33 | __do_catch (const type_info *thr_type, | |
34 | void **thr_obj, | |
35 | unsigned outer) const | |
36 | { | |
37 | if (*this == *thr_type) | |
38 | return true; // same type | |
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39 | |
40 | #ifdef __GXX_RTTI | |
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41 | if (typeid (*this) != typeid (*thr_type)) |
42 | return false; // not both same kind of pointers | |
32ade559 | 43 | #endif |
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44 | |
45 | if (!(outer & 1)) | |
46 | // We're not the same and our outer pointers are not all const qualified | |
47 | // Therefore there must at least be a qualification conversion involved | |
48 | // But for that to be valid, our outer pointers must be const qualified. | |
49 | return false; | |
50 | ||
51 | const __pbase_type_info *thrown_type = | |
52 | static_cast <const __pbase_type_info *> (thr_type); | |
53 | ||
54 | if (thrown_type->__flags & ~__flags) | |
55 | // We're less qualified. | |
56 | return false; | |
57 | ||
58 | if (!(__flags & __const_mask)) | |
59 | outer &= ~1; | |
60 | ||
61 | return __pointer_catch (thrown_type, thr_obj, outer); | |
62 | } | |
63 | ||
64 | } |