00001 // cxxabi.h subset for inclusion by other library headers -*- C++ -*- 00002 00003 // Copyright (C) 2007 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 2, 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 // You should have received a copy of the GNU General Public License 00018 // along with GCC; see the file COPYING. If not, write to 00019 // the Free Software Foundation, 51 Franklin Street, Fifth Floor, 00020 // Boston, MA 02110-1301, USA. 00021 00022 // As a special exception, you may use this file as part of a free software 00023 // library without restriction. Specifically, if other files instantiate 00024 // templates or use macros or inline functions from this file, or you compile 00025 // this file and link it with other files to produce an executable, this 00026 // file does not by itself cause the resulting executable to be covered by 00027 // the GNU General Public License. This exception does not however 00028 // invalidate any other reasons why the executable file might be covered by 00029 // the GNU General Public License. 00030 00031 #ifndef _CXXABI_FORCED_H 00032 #define _CXXABI_FORCED_H 1 00033 00034 #pragma GCC visibility push(default) 00035 00036 #ifdef __cplusplus 00037 namespace __cxxabiv1 00038 { 00039 // A magic placeholder class that can be caught by reference 00040 // to recognize forced unwinding. 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