00001 // cxxabi.h subset for inclusion by other library headers -*- C++ -*- 00002 00003 // Copyright (C) 2007, 2009 Free Software Foundation, Inc. 00004 // 00005 // This file is part of GCC. 00006 // 00007 // GCC is free software; you can redistribute it and/or modify 00008 // it under the terms of the GNU General Public License as published by 00009 // the Free Software Foundation; either version 3, or (at your option) 00010 // any later version. 00011 // 00012 // GCC is distributed in the hope that it will be useful, 00013 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00015 // GNU General Public License for more details. 00016 // 00017 // Under Section 7 of GPL version 3, you are granted additional 00018 // permissions described in the GCC Runtime Library Exception, version 00019 // 3.1, as published by the Free Software Foundation. 00020 00021 // You should have received a copy of the GNU General Public License and 00022 // a copy of the GCC Runtime Library Exception along with this program; 00023 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 00024 // <http://www.gnu.org/licenses/>. 00025 00026 #ifndef _CXXABI_FORCED_H 00027 #define _CXXABI_FORCED_H 1 00028 00029 #pragma GCC visibility push(default) 00030 00031 #ifdef __cplusplus 00032 namespace __cxxabiv1 00033 { 00034 /** 00035 * @brief Thrown as part of forced unwinding. 00036 * @ingroup exceptions 00037 * 00038 * A magic placeholder class that can be caught by reference to 00039 * recognize forced unwinding. 00040 */ 00041 class __forced_unwind 00042 { 00043 virtual ~__forced_unwind() throw(); 00044 virtual void __pure_dummy() = 0; // prevent catch by value 00045 }; 00046 } 00047 #endif // __cplusplus 00048 00049 #pragma GCC visibility pop 00050 00051 #endif // __CXXABI_FORCED_H