1 /* DO NOT EDIT! GENERATED AUTOMATICALLY! */
2 /* Memory allocation on the stack.
3 
4    Copyright (C) 1995, 1999, 2001-2004, 2006-2012 Free Software Foundation,
5    Inc.
6 
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.
11 
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.
16 
17    You should have received a copy of the GNU General Public
18    License along with this program; if not, see
19    <http://www.gnu.org/licenses/>.
20   */
21 
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
26 
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  */
37 
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 # else
56 #  include <stddef.h>
57 #  ifdef  __cplusplus
58 extern "C"
59 #  endif
60 void *alloca (size_t);
61 # endif
62 #endif
63 
64 #endif /* _GL_ALLOCA_H */
65