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7c3e9502 | 1 | // cxxabi.h subset for cancellation -*- C++ -*- |
fba10f59 | 2 | |
8d9254fc | 3 | // Copyright (C) 2007-2020 Free Software Foundation, Inc. |
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4 | // |
5 | // This file is part of GCC. | |
6 | // | |
7 | // GCC is free software; you can redistribute it and/or modify | |
8 | // it under the terms of the GNU General Public License as published by | |
748086b7 | 9 | // the Free Software Foundation; either version 3, or (at your option) |
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10 | // any later version. |
11 | // | |
12 | // GCC is distributed in the hope that it will be useful, | |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
16 | // | |
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17 | // Under Section 7 of GPL version 3, you are granted additional |
18 | // permissions described in the GCC Runtime Library Exception, version | |
19 | // 3.1, as published by the Free Software Foundation. | |
fba10f59 | 20 | |
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21 | // You should have received a copy of the GNU General Public License and |
22 | // a copy of the GCC Runtime Library Exception along with this program; | |
23 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | // <http://www.gnu.org/licenses/>. | |
fba10f59 | 25 | |
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26 | /** @file bits/cxxabi_forced.h |
27 | * This is an internal header file, included by other library headers. | |
28 | * Do not attempt to use it directly. @headername{cxxabi.h} | |
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29 | */ |
30 | ||
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31 | #ifndef _CXXABI_FORCED_H |
32 | #define _CXXABI_FORCED_H 1 | |
33 | ||
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34 | #pragma GCC system_header |
35 | ||
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36 | #pragma GCC visibility push(default) |
37 | ||
38 | #ifdef __cplusplus | |
39 | namespace __cxxabiv1 | |
40 | { | |
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41 | /** |
42 | * @brief Thrown as part of forced unwinding. | |
43 | * @ingroup exceptions | |
44 | * | |
45 | * A magic placeholder class that can be caught by reference to | |
46 | * recognize forced unwinding. | |
47 | */ | |
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48 | class __forced_unwind |
49 | { | |
50 | virtual ~__forced_unwind() throw(); | |
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51 | |
52 | // Prevent catch by value. | |
53 | virtual void __pure_dummy() = 0; | |
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54 | }; |
55 | } | |
56 | #endif // __cplusplus | |
57 | ||
58 | #pragma GCC visibility pop | |
59 | ||
60 | #endif // __CXXABI_FORCED_H |