cxxabi-forced.h 1.6 KB

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