source: trunk/sys/dietlibc/include/limits.h @ 1

Last change on this file since 1 was 1, checked in by alain, 5 years ago

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1#ifndef _LIMITS_H
2#define _LIMITS_H
3
4#include <endian.h>
5
6#ifndef __SCHAR_MAX__
7#define __SCHAR_MAX__   127
8#endif
9#ifndef __SHRT_MAX__
10#define __SHRT_MAX__    32767
11#endif
12#ifndef __INT_MAX__
13#define __INT_MAX__     2147483647
14#endif
15#ifndef __LONG_MAX__
16#if __WORDSIZE == 64
17#define __LONG_MAX__    9223372036854775807L
18#else
19#define __LONG_MAX__    2147483647L
20#endif
21#endif
22
23#define CHAR_BIT 8
24
25#define SCHAR_MIN       (-1 - SCHAR_MAX)
26#define SCHAR_MAX       (__SCHAR_MAX__)
27#define UCHAR_MAX       (SCHAR_MAX * 2 + 1)
28
29#ifdef __CHAR_UNSIGNED__
30#undef CHAR_MIN
31#define CHAR_MIN 0
32#undef CHAR_MAX
33#define CHAR_MAX UCHAR_MAX
34#else
35#undef CHAR_MIN
36#define CHAR_MIN SCHAR_MIN
37#undef CHAR_MAX
38#define CHAR_MAX SCHAR_MAX
39#endif
40
41#define SHRT_MIN        (-1 - SHRT_MAX)
42#define SHRT_MAX        (__SHRT_MAX__)
43#if ((__INT_MAX__) == (__SHRT_MAX__))
44#define USHRT_MAX       (SHRT_MAX * 2U + 1U)
45#else
46#define USHRT_MAX       (SHRT_MAX * 2 + 1)
47#endif
48
49#define INT_MIN         (-1 - INT_MAX)
50#define INT_MAX         (__INT_MAX__)
51#define UINT_MAX        (INT_MAX * 2U + 1U)
52
53#define LONG_MIN        (-1L - LONG_MAX)
54#define LONG_MAX        ((__LONG_MAX__) + 0L)
55#define ULONG_MAX       (LONG_MAX * 2UL + 1UL)
56
57#define LLONG_MAX 9223372036854775807LL
58#define LLONG_MIN (-LLONG_MAX - 1LL)
59
60/* Maximum value an `unsigned long long int' can hold.  (Minimum is 0.)  */
61#define ULLONG_MAX 18446744073709551615ULL
62
63#define SSIZE_MIN LONG_MIN
64#define SSIZE_MAX LONG_MAX
65
66#define PASS_MAX        256
67
68#define NR_OPEN         1024
69
70#define NGROUPS_MAX     32      /* supplemental group IDs are available */
71#define ARG_MAX         131072  /* # bytes of args + environ for exec() */
72#define CHILD_MAX       999    /* no limit :-) */
73/*#define OPEN_MAX      256     # open files a process may have */
74#define OPEN_MAX        60     /* SEE VFS PARAMS */
75#define LINK_MAX        127     /* # links a file may have */
76#define MAX_CANON       255     /* size of the canonical input queue */
77#define MAX_INPUT       255     /* size of the type-ahead buffer */
78#define NAME_MAX        255     /* chars in a file name */
79#define PATH_MAX        NAME_MAX*12+1   /* SEE VFS PARAMS */
80#define PIPE_BUF        4096    # bytes in atomic write to a pipe */
81//#define PIPE_BUF      512     /* SEE BUFFER CACHE BLOCK SIZE */
82
83#define RTSIG_MAX       32
84
85#define LINE_MAX        2048
86#define ATEXIT_MAX      32
87
88/* mutt demanded these */
89#define _POSIX_PATH_MAX PATH_MAX
90#define MB_LEN_MAX 16
91
92#ifdef _XOPEN_SOURCE
93#define IOV_MAX 1024
94#endif
95
96#endif
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