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// cxxabi.h subset for cancellation -*- C++ -*-

// Copyright (C) 2007, 2009, 2010, 2011 Free Software Foundation, Inc.

//

// This file is part of GCC.

//

// GCC is free software; you can redistribute it and/or modify

// it under the terms of the GNU General Public License as published by

// the Free Software Foundation; either version 3, or (at your option)

// any later version.

// 

// GCC is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

// 

// Under Section 7 of GPL version 3, you are granted additional

// permissions described in the GCC Runtime Library Exception, version

// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and

// a copy of the GCC Runtime Library Exception along with this program;

// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

// <http://www.gnu.org/licenses/>.

/** @file bits/cxxabi_forced.h

 *  This is an internal header file, included by other library headers.

 *  Do not attempt to use it directly. @headername{cxxabi.h}

 */

#ifndef _CXXABI_FORCED_H

#define _CXXABI_FORCED_H 1

#pragma GCC system_header

#pragma GCC visibility push(default)

#ifdef __cplusplus

namespace __cxxabiv1

{

  /**

   *  @brief Thrown as part of forced unwinding.

   *  @ingroup exceptions

   *

   *  A magic placeholder class that can be caught by reference to

   *  recognize forced unwinding.

   */

  class __forced_unwind

  {

    virtual ~__forced_unwind() throw();

    // Prevent catch by value.

    virtual void __pure_dummy() = 0;

  };

}

#endif // __cplusplus

#pragma GCC visibility pop

#endif // __CXXABI_FORCED_H