#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