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1 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */

2 /* Memory allocation on the stack.

5 Inc.

7 This program is free software; you can redistribute it and/or modify it

8 under the terms of the GNU General Public License as published

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

10 any later version.

12 This program is distributed in the hope that it will be useful,

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

14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

15 General Public License for more details.

17 You should have received a copy of the GNU General Public

18 License along with this program; if not, see

19 <https://www.gnu.org/licenses/>.

20 */

22 /* Avoid using the symbol _ALLOCA_H here, as Bison assumes _ALLOCA_H

23 means there is a real alloca function. */

24 #ifndef _GL_ALLOCA_H

25 #define _GL_ALLOCA_H

27 /* alloca (N) returns a pointer to N bytes of memory

28 allocated on the stack, which will last until the function returns.

29 Use of alloca should be avoided:

30 - inside arguments of function calls - undefined behaviour,

31 - in inline functions - the allocation may actually last until the

32 calling function returns,

33 - for huge N (say, N >= 65536) - you never know how large (or small)

34 the stack is, and when the stack cannot fulfill the memory allocation

35 request, the program just crashes.

36 */

38 #ifndef alloca

39 # ifdef __GNUC__

40 # define alloca __builtin_alloca

41 # elif defined _AIX

42 # define alloca __alloca

43 # elif defined _MSC_VER

44 # include <malloc.h>

45 # define alloca _alloca

46 # elif defined __DECC && defined __VMS

47 # define alloca __ALLOCA

48 # elif defined __TANDEM && defined _TNS_E_TARGET

49 # ifdef __cplusplus

50 extern "C"

51 # endif

52 void *_alloca (unsigned short);

53 # pragma intrinsic (_alloca)

54 # define alloca _alloca

55 # elif defined __MVS__

56 # include <stdlib.h>

57 # else

58 # include <stddef.h>

59 # ifdef __cplusplus

60 extern "C"

61 # endif

62 void *alloca (size_t);

63 # endif

64 #endif

66 #endif /* _GL_ALLOCA_H */