1#pragma once 2 3#include <features.h> 4 5/* Most limits are system-specific */ 6 7#include <bits/limits.h> 8 9/* Support signed or unsigned plain-char */ 10 11#if '\0' - 1 > 0 12#define CHAR_MIN 0 13#define CHAR_MAX 255 14#else 15#define CHAR_MIN (-128) 16#define CHAR_MAX 127 17#endif 18 19/* Some universal constants... */ 20 21#define CHAR_BIT 8 22#define SCHAR_MIN (-128) 23#define SCHAR_MAX 127 24#define UCHAR_MAX 255 25#define SHRT_MIN (-1 - 0x7fff) 26#define SHRT_MAX 0x7fff 27#define USHRT_MAX 0xffff 28#define INT_MIN (-1 - 0x7fffffff) 29#define INT_MAX 0x7fffffff 30#define UINT_MAX 0xffffffffU 31#define LONG_MIN (-LONG_MAX - 1) 32#define ULONG_MAX (2UL * LONG_MAX + 1) 33#define LLONG_MIN (-LLONG_MAX - 1) 34#define ULLONG_MAX (2ULL * LLONG_MAX + 1) 35 36#define MB_LEN_MAX 4 37 38#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \ 39 defined(_GNU_SOURCE) || defined(_BSD_SOURCE) 40 41#define PIPE_BUF 4096 42#ifdef PAGE_SIZE 43#define PAGESIZE PAGE_SIZE 44#endif 45#define FILESIZEBITS 64 46#define NAME_MAX 255 47#define SYMLINK_MAX 255 48#define PATH_MAX 4096 49#define NZERO 20 50#define NGROUPS_MAX 32 51#define ARG_MAX 131072 52#define IOV_MAX 1024 53#define SYMLOOP_MAX 40 54#define WORD_BIT 32 55#define SSIZE_MAX LONG_MAX 56#define TZNAME_MAX 6 57#define TTY_NAME_MAX 32 58#define HOST_NAME_MAX 255 59 60/* Implementation choices... */ 61 62#define PTHREAD_KEYS_MAX 128 63#define PTHREAD_STACK_MIN 3072 64#define PTHREAD_DESTRUCTOR_ITERATIONS 4 65#define SEM_VALUE_MAX 0x7fffffff 66#define SEM_NSEMS_MAX 256 67#define DELAYTIMER_MAX 0x7fffffff 68#define MQ_PRIO_MAX 32768 69#define LOGIN_NAME_MAX 256 70 71/* Arbitrary numbers... */ 72 73#define BC_BASE_MAX 99 74#define BC_DIM_MAX 2048 75#define BC_SCALE_MAX 99 76#define BC_STRING_MAX 1000 77#define CHARCLASS_NAME_MAX 14 78#define COLL_WEIGHTS_MAX 2 79#define EXPR_NEST_MAX 32 80#define LINE_MAX 4096 81#define RE_DUP_MAX 255 82 83#define NL_ARGMAX 9 84#define NL_LANGMAX 32 85#define NL_MSGMAX 32767 86#define NL_SETMAX 255 87#define NL_TEXTMAX 2048 88 89#endif 90 91#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) || \ 92 (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE + 0 < 700) 93 94#define NL_NMAX 16 95 96#endif 97 98/* POSIX/SUS requirements follow. These numbers come directly 99 * from SUS and have nothing to do with the host system. */ 100 101#define _POSIX_AIO_LISTIO_MAX 2 102#define _POSIX_AIO_MAX 1 103#define _POSIX_ARG_MAX 4096 104#define _POSIX_CHILD_MAX 25 105#define _POSIX_CLOCKRES_MIN 20000000 106#define _POSIX_DELAYTIMER_MAX 32 107#define _POSIX_HOST_NAME_MAX 255 108#define _POSIX_LINK_MAX 8 109#define _POSIX_LOGIN_NAME_MAX 9 110#define _POSIX_MAX_CANON 255 111#define _POSIX_MAX_INPUT 255 112#define _POSIX_MQ_OPEN_MAX 8 113#define _POSIX_MQ_PRIO_MAX 32 114#define _POSIX_NAME_MAX 14 115#define _POSIX_NGROUPS_MAX 8 116#define _POSIX_OPEN_MAX 20 117#define _POSIX_PATH_MAX 256 118#define _POSIX_PIPE_BUF 512 119#define _POSIX_RE_DUP_MAX 255 120#define _POSIX_RTSIG_MAX 8 121#define _POSIX_SEM_NSEMS_MAX 256 122#define _POSIX_SEM_VALUE_MAX 32767 123#define _POSIX_SIGQUEUE_MAX 32 124#define _POSIX_SSIZE_MAX 32767 125#define _POSIX_STREAM_MAX 8 126#define _POSIX_SS_REPL_MAX 4 127#define _POSIX_SYMLINK_MAX 255 128#define _POSIX_SYMLOOP_MAX 8 129#define _POSIX_THREAD_DESTRUCTOR_ITERATIONS 4 130#define _POSIX_THREAD_KEYS_MAX 128 131#define _POSIX_THREAD_THREADS_MAX 64 132#define _POSIX_TIMER_MAX 32 133#define _POSIX_TRACE_EVENT_NAME_MAX 30 134#define _POSIX_TRACE_NAME_MAX 8 135#define _POSIX_TRACE_SYS_MAX 8 136#define _POSIX_TRACE_USER_EVENT_MAX 32 137#define _POSIX_TTY_NAME_MAX 9 138#define _POSIX_TZNAME_MAX 6 139#define _POSIX2_BC_BASE_MAX 99 140#define _POSIX2_BC_DIM_MAX 2048 141#define _POSIX2_BC_SCALE_MAX 99 142#define _POSIX2_BC_STRING_MAX 1000 143#define _POSIX2_CHARCLASS_NAME_MAX 14 144#define _POSIX2_COLL_WEIGHTS_MAX 2 145#define _POSIX2_EXPR_NEST_MAX 32 146#define _POSIX2_LINE_MAX 2048 147#define _POSIX2_RE_DUP_MAX 255 148 149#define _XOPEN_IOV_MAX 16 150#define _XOPEN_NAME_MAX 255 151#define _XOPEN_PATH_MAX 1024 152