# cxxabi-forced.h

    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