alloca.h 1.3 KB

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  1. /* Copyright (C) 1992, 1996, 1997, 1998 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Library General Public License as
  5. published by the Free Software Foundation; either version 2 of the
  6. License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Library General Public License for more details.
  11. You should have received a copy of the GNU Library General Public
  12. License along with the GNU C Library; see the file COPYING.LIB. If not,
  13. write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  14. Boston, MA 02111-1307, USA. */
  15. #ifndef _ALLOCA_H
  16. #define _ALLOCA_H 1
  17. #include <features.h>
  18. #define __need_size_t
  19. #include <stddef.h>
  20. __BEGIN_DECLS
  21. /* Remove any previous definitions. */
  22. #undef alloca
  23. /* Allocate a block that will be freed when the calling function exits. */
  24. extern __ptr_t alloca __P ((size_t __size));
  25. #ifdef __GNUC__
  26. # define alloca(size) __builtin_alloca (size)
  27. #endif /* GCC. */
  28. __END_DECLS
  29. #endif /* alloca.h */