blob: 957010d2c0b589b476c1ab4d557734fd191be585 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
|
/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
/*
* Never include this file directly; use <limits.h> instead.
*/
/* Additional definitions from X/Open Portability Guide, Issue 4, Version 2
System Interfaces and Headers, 4.16 <limits.h>
Please note only the values which are not greater than the minimum
stated in the standard document are listed. The `sysconf' functions
should be used to obtain the actual value. */
#ifndef _XOPEN_LIM_H
#define _XOPEN_LIM_H 1
/* We do not provide fixed values for
ARG_MAX Maximum length of argument to the `exec' function
including environment data.
ATEXIT_MAX Maximum number of functions that may be registered
with `atexit'.
CHILD_MAX Maximum number of simultaneous processes per real
user ID.
OPEN_MAX Maximum number of files that one process can have open
at anyone time.
PAGESIZE
PAGE_SIZE Size of bytes of a page.
PASS_MAX Maximum number of significant bytes in a password.
We only provide a fixed limit for
IOV_MAX Maximum number of `iovec' structures that one process has
available for use with `readv' or writev'.
if this is indeed fixed by the underlying system.
*/
/* Maximum number of `iovec' structures that may be used in a single call
to `readv', `writev', etc. */
#define _XOPEN_IOV_MAX _POSIX_UIO_MAXIOV
#include <bits/uio_lim.h>
#ifdef __IOV_MAX
# define IOV_MAX __IOV_MAX
#else
# undef IOV_MAX
#endif
/* Maximum value of `digit' in calls to the `printf' and `scanf'
functions. We have no limit, so return a reasonable value. */
#define NL_ARGMAX _POSIX_ARG_MAX
/* Maximum number of bytes in a `LANG' name. We have no limit. */
#define NL_LANGMAX _POSIX2_LINE_MAX
/* Maximum message number. We have no limit. */
#define NL_MSGMAX INT_MAX
/* Maximum number of bytes in N-to-1 collation mapping. We have no
limit. */
#if defined __USE_GNU || !defined __USE_XOPEN2K8
# define NL_NMAX INT_MAX
#endif
/* Maximum set number. We have no limit. */
#define NL_SETMAX INT_MAX
/* Maximum number of bytes in a message. We have no limit. */
#define NL_TEXTMAX INT_MAX
/* Default process priority. */
#define NZERO 20
/* Number of bits in a word of type `int'. */
#ifdef INT_MAX
# if INT_MAX == 32767
# define WORD_BIT 16
# else
# if INT_MAX == 2147483647
# define WORD_BIT 32
# else
/* Safe assumption. */
# define WORD_BIT 64
# endif
# endif
#elif defined __INT_MAX__
# if __INT_MAX__ == 32767
# define WORD_BIT 16
# else
# if __INT_MAX__ == 2147483647
# define WORD_BIT 32
# else
/* Safe assumption. */
# define WORD_BIT 64
# endif
# endif
#else
# define WORD_BIT 32
#endif
/* Number of bits in a word of type `long int'. */
#ifdef LONG_MAX
# if LONG_MAX == 2147483647
# define LONG_BIT 32
# else
/* Safe assumption. */
# define LONG_BIT 64
# endif
#elif defined __LONG_MAX__
# if __LONG_MAX__ == 2147483647
# define LONG_BIT 32
# else
/* Safe assumption. */
# define LONG_BIT 64
# endif
#else
# include <bits/wordsize.h>
# if __WORDSIZE == 64
# define LONG_BIT 64
# else
# define LONG_BIT 32
# endif
#endif
#endif /* bits/xopen_lim.h */
|
