1*e4b17023SJohn Marino // cxxabi.h subset for cancellation -*- C++ -*- 2*e4b17023SJohn Marino 3*e4b17023SJohn Marino // Copyright (C) 2007, 2009, 2010, 2011 Free Software Foundation, Inc. 4*e4b17023SJohn Marino // 5*e4b17023SJohn Marino // This file is part of GCC. 6*e4b17023SJohn Marino // 7*e4b17023SJohn Marino // GCC is free software; you can redistribute it and/or modify 8*e4b17023SJohn Marino // it under the terms of the GNU General Public License as published by 9*e4b17023SJohn Marino // the Free Software Foundation; either version 3, or (at your option) 10*e4b17023SJohn Marino // any later version. 11*e4b17023SJohn Marino // 12*e4b17023SJohn Marino // GCC is distributed in the hope that it will be useful, 13*e4b17023SJohn Marino // but WITHOUT ANY WARRANTY; without even the implied warranty of 14*e4b17023SJohn Marino // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15*e4b17023SJohn Marino // GNU General Public License for more details. 16*e4b17023SJohn Marino // 17*e4b17023SJohn Marino // Under Section 7 of GPL version 3, you are granted additional 18*e4b17023SJohn Marino // permissions described in the GCC Runtime Library Exception, version 19*e4b17023SJohn Marino // 3.1, as published by the Free Software Foundation. 20*e4b17023SJohn Marino 21*e4b17023SJohn Marino // You should have received a copy of the GNU General Public License and 22*e4b17023SJohn Marino // a copy of the GCC Runtime Library Exception along with this program; 23*e4b17023SJohn Marino // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24*e4b17023SJohn Marino // <http://www.gnu.org/licenses/>. 25*e4b17023SJohn Marino 26*e4b17023SJohn Marino /** @file bits/cxxabi_forced.h 27*e4b17023SJohn Marino * This is an internal header file, included by other library headers. 28*e4b17023SJohn Marino * Do not attempt to use it directly. @headername{cxxabi.h} 29*e4b17023SJohn Marino */ 30*e4b17023SJohn Marino 31*e4b17023SJohn Marino #ifndef _CXXABI_FORCED_H 32*e4b17023SJohn Marino #define _CXXABI_FORCED_H 1 33*e4b17023SJohn Marino 34*e4b17023SJohn Marino #pragma GCC system_header 35*e4b17023SJohn Marino 36*e4b17023SJohn Marino #pragma GCC visibility push(default) 37*e4b17023SJohn Marino 38*e4b17023SJohn Marino #ifdef __cplusplus 39*e4b17023SJohn Marino namespace __cxxabiv1 40*e4b17023SJohn Marino { 41*e4b17023SJohn Marino /** 42*e4b17023SJohn Marino * @brief Thrown as part of forced unwinding. 43*e4b17023SJohn Marino * @ingroup exceptions 44*e4b17023SJohn Marino * 45*e4b17023SJohn Marino * A magic placeholder class that can be caught by reference to 46*e4b17023SJohn Marino * recognize forced unwinding. 47*e4b17023SJohn Marino */ 48*e4b17023SJohn Marino class __forced_unwind 49*e4b17023SJohn Marino { 50*e4b17023SJohn Marino virtual ~__forced_unwind() throw(); 51*e4b17023SJohn Marino 52*e4b17023SJohn Marino // Prevent catch by value. 53*e4b17023SJohn Marino virtual void __pure_dummy() = 0; 54*e4b17023SJohn Marino }; 55*e4b17023SJohn Marino } 56*e4b17023SJohn Marino #endif // __cplusplus 57*e4b17023SJohn Marino 58*e4b17023SJohn Marino #pragma GCC visibility pop 59*e4b17023SJohn Marino 60*e4b17023SJohn Marino #endif // __CXXABI_FORCED_H 61