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- #ifndef _LIMITS_H
- #define _LIMITS_H
- #include <features.h>
- /* Most limits are system-specific */
- #include <bits/limits.h>
- /* Support signed or unsigned plain-char */
- #if '\0'-1 > 0
- #define CHAR_MIN 0
- #define CHAR_MAX 255
- #else
- #define CHAR_MIN (-128)
- #define CHAR_MAX 127
- #endif
- /* Some universal constants... */
- #define CHAR_BIT 8
- #define SCHAR_MIN (-128)
- #define SCHAR_MAX 127
- #define UCHAR_MAX 255
- #define SHRT_MIN (-1-0x7fff)
- #define SHRT_MAX 0x7fff
- #define USHRT_MAX 0xffff
- #define INT_MIN (-1-0x7fffffff)
- #define INT_MAX 0x7fffffff
- #define UINT_MAX 0xffffffffU
- #define LONG_MIN (-LONG_MAX-1)
- #define ULONG_MAX (2UL*LONG_MAX+1)
- #define LLONG_MIN (-LLONG_MAX-1)
- #define ULLONG_MAX (2ULL*LLONG_MAX+1)
- #define MB_LEN_MAX 4
- #if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
- || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
- #define PIPE_BUF 4096
- #ifdef PAGE_SIZE
- #define PAGESIZE PAGE_SIZE
- #endif
- #define FILESIZEBITS 64
- #define NAME_MAX 255
- #define SYMLINK_MAX 255
- #define PATH_MAX 4096
- #define NZERO 20
- #define NGROUPS_MAX 32
- #define ARG_MAX 131072
- #define IOV_MAX 1024
- #define SYMLOOP_MAX 40
- #define WORD_BIT 32
- #define SSIZE_MAX LONG_MAX
- #define TZNAME_MAX 6
- #define TTY_NAME_MAX 32
- #define HOST_NAME_MAX 255
- /* Implementation choices... */
- #define PTHREAD_KEYS_MAX 128
- #define PTHREAD_STACK_MIN 2048
- #define PTHREAD_DESTRUCTOR_ITERATIONS 4
- #define SEM_VALUE_MAX 0x7fffffff
- #define SEM_NSEMS_MAX 256
- #define DELAYTIMER_MAX 0x7fffffff
- #define MQ_PRIO_MAX 32768
- #define LOGIN_NAME_MAX 256
- /* Arbitrary numbers... */
- #define BC_BASE_MAX 99
- #define BC_DIM_MAX 2048
- #define BC_SCALE_MAX 99
- #define BC_STRING_MAX 1000
- #define CHARCLASS_NAME_MAX 14
- #define COLL_WEIGHTS_MAX 2
- #define EXPR_NEST_MAX 32
- #define LINE_MAX 4096
- #define RE_DUP_MAX 255
- #define NL_ARGMAX 9
- #define NL_LANGMAX 32
- #define NL_MSGMAX 32767
- #define NL_SETMAX 255
- #define NL_TEXTMAX 2048
- #endif
- #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) \
- || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE+0 < 700)
- #define NL_NMAX 16
- #endif
- /* POSIX/SUS requirements follow. These numbers come directly
- * from SUS and have nothing to do with the host system. */
- #define _POSIX_AIO_LISTIO_MAX 2
- #define _POSIX_AIO_MAX 1
- #define _POSIX_ARG_MAX 4096
- #define _POSIX_CHILD_MAX 25
- #define _POSIX_CLOCKRES_MIN 20000000
- #define _POSIX_DELAYTIMER_MAX 32
- #define _POSIX_HOST_NAME_MAX 255
- #define _POSIX_LINK_MAX 8
- #define _POSIX_LOGIN_NAME_MAX 9
- #define _POSIX_MAX_CANON 255
- #define _POSIX_MAX_INPUT 255
- #define _POSIX_MQ_OPEN_MAX 8
- #define _POSIX_MQ_PRIO_MAX 32
- #define _POSIX_NAME_MAX 14
- #define _POSIX_NGROUPS_MAX 8
- #define _POSIX_OPEN_MAX 20
- #define _POSIX_PATH_MAX 256
- #define _POSIX_PIPE_BUF 512
- #define _POSIX_RE_DUP_MAX 255
- #define _POSIX_RTSIG_MAX 8
- #define _POSIX_SEM_NSEMS_MAX 256
- #define _POSIX_SEM_VALUE_MAX 32767
- #define _POSIX_SIGQUEUE_MAX 32
- #define _POSIX_SSIZE_MAX 32767
- #define _POSIX_STREAM_MAX 8
- #define _POSIX_SS_REPL_MAX 4
- #define _POSIX_SYMLINK_MAX 255
- #define _POSIX_SYMLOOP_MAX 8
- #define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4
- #define _POSIX_THREAD_KEYS_MAX 128
- #define _POSIX_THREAD_THREADS_MAX 64
- #define _POSIX_TIMER_MAX 32
- #define _POSIX_TRACE_EVENT_NAME_MAX 30
- #define _POSIX_TRACE_NAME_MAX 8
- #define _POSIX_TRACE_SYS_MAX 8
- #define _POSIX_TRACE_USER_EVENT_MAX 32
- #define _POSIX_TTY_NAME_MAX 9
- #define _POSIX_TZNAME_MAX 6
- #define _POSIX2_BC_BASE_MAX 99
- #define _POSIX2_BC_DIM_MAX 2048
- #define _POSIX2_BC_SCALE_MAX 99
- #define _POSIX2_BC_STRING_MAX 1000
- #define _POSIX2_CHARCLASS_NAME_MAX 14
- #define _POSIX2_COLL_WEIGHTS_MAX 2
- #define _POSIX2_EXPR_NEST_MAX 32
- #define _POSIX2_LINE_MAX 2048
- #define _POSIX2_RE_DUP_MAX 255
- #define _XOPEN_IOV_MAX 16
- #define _XOPEN_NAME_MAX 255
- #define _XOPEN_PATH_MAX 1024
- #endif
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