00001 // cxxabi.h subset for inclusion by other library headers -*- C++ -*- 00002 00003 // Copyright (C) 2007, 2009, 2010 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 /** @file cxxabi-forced.h 00027 * The header provides an interface to the C++ ABI. 00028 */ 00029 00030 #ifndef _CXXABI_FORCED_H 00031 #define _CXXABI_FORCED_H 1 00032 00033 #pragma GCC system_header 00034 00035 #pragma GCC visibility push(default) 00036 00037 #ifdef __cplusplus 00038 namespace __cxxabiv1 00039 { 00040 /** 00041 * @brief Thrown as part of forced unwinding. 00042 * @ingroup exceptions 00043 * 00044 * A magic placeholder class that can be caught by reference to 00045 * recognize forced unwinding. 00046 */ 00047 class __forced_unwind 00048 { 00049 virtual ~__forced_unwind() throw(); 00050 00051 // Prevent catch by value. 00052 virtual void __pure_dummy() = 0; 00053 }; 00054 } 00055 #endif // __cplusplus 00056 00057 #pragma GCC visibility pop 00058 00059 #endif // __CXXABI_FORCED_H