4 /* Most limits are system-specific */
6 #include <bits/limits.h>
8 /* Some universal constants... */
11 #define SCHAR_MIN (-128)
14 #define CHAR_MIN (-128)
16 #define SSIZE_MAX LONG_MAX
20 #define TTY_NAME_MAX 20
21 #define HOST_NAME_MAX 255
23 /* Implementation choices... */
25 #define PTHREAD_KEYS_MAX 1024
26 #define PTHREAD_STACK_MIN (2*PAGE_SIZE)
28 /* Arbitrary numbers... */
30 #define BC_BASE_MAX 99
31 #define BC_DIM_MAX 2048
32 #define BC_SCALE_MAX 99
33 #define BC_STRING_MAX 1000
34 #define CHARCLASS_NAME_MAX 14
35 #define COLL_WEIGHTS_MAX 2
36 #define EXPR_NEST_MAX 32
38 #define RE_DUP_MAX 255
42 #define NL_MSGMAX 32767
43 #define NL_NMAX (MB_LEN_MAX*4)
45 #define NL_TEXTMAX 2048
47 /* POSIX/SUS requirements follow. These numbers come directly
48 * from SUS and have nothing to do with the host system. */
50 #define _POSIX_AIO_LISTIO_MAX 2
51 #define _POSIX_AIO_MAX 1
52 #define _POSIX_ARG_MAX 4096
53 #define _POSIX_CHILD_MAX 25
54 #define _POSIX_DELAYTIMER_MAX 32
55 #define _POSIX_HOST_NAME_MAX 255
56 #define _POSIX_LINK_MAX 8
57 #define _POSIX_LOGIN_NAME_MAX 9
58 #define _POSIX_MAX_CANON 255
59 #define _POSIX_MAX_INPUT 255
60 #define _POSIX_MQ_OPEN_MAX 8
61 #define _POSIX_MQ_PRIO_MAX 32
62 #define _POSIX_NAME_MAX 14
63 #define _POSIX_NGROUPS_MAX 8
64 #define _POSIX_OPEN_MAX 20
65 #define _POSIX_PATH_MAX 256
66 #define _POSIX_PIPE_BUF 512
67 #define _POSIX_RE_DUP_MAX 255
68 #define _POSIX_RTSIG_MAX 8
69 #define _POSIX_SEM_NSEMS_MAX 256
70 #define _POSIX_SEM_VALUE_MAX 32767
71 #define _POSIX_SIGQUEUE_MAX 32
72 #define _POSIX_SSIZE_MAX 32767
73 #define _POSIX_STREAM_MAX 8
74 #define _POSIX_SS_REPL_MAX 4
75 #define _POSIX_SYMLINK_MAX 255
76 #define _POSIX_SYMLOOP_MAX 8
77 #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
78 #define _POSIX_THREAD_KEYS_MAX 128
79 #define _POSIX_THREAD_THREADS_MAX 64
80 #define _POSIX_TIMER_MAX 32
81 #define _POSIX_TRACE_EVENT_NAME_MAX 30
82 #define _POSIX_TRACE_NAME_MAX 8
83 #define _POSIX_TRACE_SYS_MAX 8
84 #define _POSIX_TRACE_USER_EVENT_MAX 32
85 #define _POSIX_TTY_NAME_MAX 9
86 #define _POSIX_TZNAME_MAX 6
87 #define _POSIX2_BC_BASE_MAX 99
88 #define _POSIX2_BC_DIM_MAX 2048
89 #define _POSIX2_BC_SCALE_MAX 99
90 #define _POSIX2_BC_STRING_MAX 1000
91 #define _POSIX2_CHARCLASS_NAME_MAX 14
92 #define _POSIX2_COLL_WEIGHTS_MAX 2
93 #define _POSIX2_EXPR_NEST_MAX 32
94 #define _POSIX2_LINE_MAX 2048
95 #define _POSIX2_RE_DUP_MAX 255
97 #define _XOPEN_IOV_MAX 16
98 #define _XOPEN_NAME_MAX 255
99 #define _XOPEN_PATH_MAX 1024