1// cxxabi.h subset for inclusion by other library headers -*- C++ -*- 2 3// Copyright (C) 2007, 2009 Free Software Foundation, Inc. 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 9// the Free Software Foundation; either version 3, or (at your option) 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// 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. 20 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/>. 25 26#ifndef _CXXABI_FORCED_H 27#define _CXXABI_FORCED_H 1 28 29#pragma GCC visibility push(default) 30 31#ifdef __cplusplus 32namespace __cxxabiv1 33{ 34 /** 35 * @brief Thrown as part of forced unwinding. 36 * @ingroup exceptions 37 * 38 * A magic placeholder class that can be caught by reference to 39 * recognize forced unwinding. 40 */ 41 class __forced_unwind 42 { 43 virtual ~__forced_unwind() throw(); 44 virtual void __pure_dummy() = 0; // prevent catch by value 45 }; 46} 47#endif // __cplusplus 48 49#pragma GCC visibility pop 50 51#endif // __CXXABI_FORCED_H 52