| // cxxabi.h subset for cancellation -*- C++ -*- |
| |
| // Copyright (C) 2007-2021 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/>. |
| |
| /** @file bits/cxxabi_forced.h |
| * This is an internal header file, included by other library headers. |
| * Do not attempt to use it directly. @headername{cxxabi.h} |
| */ |
| |
| #ifndef _CXXABI_FORCED_H |
| #define _CXXABI_FORCED_H 1 |
| |
| #pragma GCC system_header |
| |
| #pragma GCC visibility push(default) |
| |
| #ifdef __cplusplus |
| namespace __cxxabiv1 |
| { |
| /** |
| * @brief Thrown as part of forced unwinding. |
| * @ingroup exceptions |
| * |
| * A magic placeholder class that can be caught by reference to |
| * recognize forced unwinding. |
| */ |
| class __forced_unwind |
| { |
| virtual ~__forced_unwind() throw(); |
| |
| // Prevent catch by value. |
| virtual void __pure_dummy() = 0; |
| }; |
| } |
| #endif // __cplusplus |
| |
| #pragma GCC visibility pop |
| |
| #endif // __CXXABI_FORCED_H |