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 32 namespace __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
