compiler/clib/include/limits.h

   1 /*
   2  *  Copyright © 2004 The AROS Developmemt Team. All rights reserved.
   3  *  $Id$
   4  *
   5  *  ISO C99 Standard: Sizes of integer types <limits.h>
   6  *  POSIX Standard: implementation-defined constants
   7  */
   8
   9 #ifndef _LIMITS_H_
  10 #define _LIMITS_H_ 1
  11
  12 #include <sys/cdefs.h>
  13
  14 /*
  15  *  Define ANSI <limits.h> for standard 32-bit words.
  16  *  We're assuming
  17  *  8-bit 'char',
  18  *  16-bit 'short int', and
  19  *  32-bit 'int' and 'long int'.
  20  */
  21
  22 /* Number of bits in a 'char' */
  23 #define CHAR_BIT        8
  24
  25 /* Minimum and maximum number displayable with 'signed char' */
  26 #define SCHAR_MIN       (-128)
  27 #define SCHAR_MAX       127
  28
  29 /* Minimum and maximum number displayable with 'char' */
  30 #define CHAR_MIN        SCHAR_MIN
  31 #define CHAR_MAX        SCHAR_MAX
  32
  33 /* Maximum number displayable with 'unsigned char'. Minimum is 0. */
  34 #define UCHAR_MAX       255
  35
  36
  37 /* Minimum and maximum number displayable with 'signed short int' */
  38 #define SHRT_MIN        (-32768)
  39 #define SHRT_MAX        32767
  40
  41 /* Maximum number displayable with 'unsigned short int'. Minimum is 0. */
  42 #define USHRT_MAX       65535
  43
  44
  45 /* Minimum and maximum displayable with 'signed int' */
  46 #define INT_MAX         2147483647
  47 #define INT_MIN         (-INT_MAX - 1)
  48
  49 /* Maximum value displayable with 'unsigned int'. Minimum is 0. */
  50 #  define UINT_MAX      4294967295U
  51
  52 /* Minimum and maximum number displayable with `signed long int' */
  53 #if __WORDSIZE == 64
  54 #   define LONG_MAX     9223372036854775807L
  55 #else
  56 #   define LONG_MAX     2147483647L
  57 #endif
  58 #define LONG_MIN        (-LONG_MAX - 1L)
  59
  60 /* Maximum number displayable with `unsigned long int'. Minimum is 0. */
  61 #if __WORDSIZE == 64
  62 #   define ULONG_MAX    18446744073709551615UL
  63 #else
  64 #   define ULONG_MAX    4294967295UL
  65 #endif
  66
  67 #define LLONG_MIN       (-0x7fffffffffffffffLL - 1)
  68 #define LLONG_MAX       0x7fffffffffffffffLL
  69 #define ULLONG_MAX      0xffffffffffffffffULL
  70
  71 #define MB_LEN_MAX              6       /* 31-bit UTF-8 */
  72
  73 /*
  74  * The POSIX limits are quite complex. You can actually omit half these
  75  * definitions if you can't determine them at compile time. You are
  76  * supposed to use sysconf() to query the actual values.
  77  *
  78  * There are also made visible by POSIX version. Please don't change
  79  * that, otherwise we are no longer POSIX compatible.
  80  */
  81
  82 #if __POSIX_VISIBLE
  83 #define ARG_MAX                                 _POSIX_ARG_MAX
  84 #define CHILD_MAX                               _POSIX_CHILD_MAX
  85 #define LINK_MAX                                _POSIX_LINK_MAX
  86 #define MAX_CANON                               _POSIX_MAX_CANON
  87 #define MAX_INPUT                               _POSIX_MAX_INPUT
  88 #define OPEN_MAX                                _POSIX_OPEN_MAX
  89 #define PIPE_BUF                                _POSIX_PIPE_BUF
  90 #define STREAM_MAX                              _POSIX_STREAM_MAX
  91 #define TZNAME_MAX                              _POSIX_TZNAME_MAX
  92
  93 #define BC_BASE_MAX                             _POSIX2_BC_BASE_MAX
  94 #define BC_DIM_MAX                              _POSIX2_BC_DIM_MAX
  95 #define BC_SCALE_MAX                            _POSIX2_BC_SCALE_MAX
  96 #define BC_STRING_MAX                           _POSIX2_BC_STRING_MAX
  97 #define CHARCLASS_NAME_MAX                      _POSIX2_CHARCLASS_NAME_MAX
  98 #define COLL_WEIGHTS_MAX                        _POSIX2_COLL_WEIGHTS_MAX
  99 #define EXPR_NEST_MAX                           _POSIX2_EXPR_NEST_MAX
 100 #define LINE_MAX                                _POSIX2_LINE_MAX
 101 #define RE_DUP_MAX                              _POSIX2_RE_DUP_MAX
 102
 103 #define _POSIX_ARG_MAX                          4096
 104 #define _POSIX_CHILD_MAX                        25
 105 #define _POSIX_LINK_MAX                         8
 106 #define _POSIX_MAX_CANON                        255
 107 #define _POSIX_MAX_INPUT                        255
 108 #define _POSIX_OPEN_MAX                         20
 109 #define _POSIX_NAME_MAX                         32
 110 #define _POSIX_NGROUPS_MAX                      16
 111 #define _POSIX_PATH_MAX                         256
 112 #define _POSIX_PIPE_BUF                         512
 113 #define _POSIX_SSIZE_MAX                        32767
 114 #define _POSIX_STREAM_MAX                       8
 115 #define _POSIX_TZNAME_MAX                       6
 116 #define _POSIX2_BC_BASE_MAX                     99
 117 #define _POSIX2_BC_DIM_MAX                      2048
 118 #define _POSIX2_BC_SCALE_MAX                    99
 119 #define _POSIX2_BC_STRING_MAX                   1000
 120 #define _POSIX2_EQUIV_CLASS_MAX                 2
 121 #define _POSIX2_EXPR_NEST_MAX                   32
 122 #define _POSIX2_LINE_MAX                        2048
 123 #define _POSIX2_RE_DUP_MAX                      255
 124 #endif
 125
 126 #if __POSIX_VISIBLE >= 199506
 127 #define _POSIX_AIO_LISTIO_MAX                   2
 128 #define _POSIX_AIO_MAX                          1
 129 #define _POSIX_DELAYTIMER_MAX                   32
 130 #define _POSIX_MQ_OPEN_MAX                      8
 131 #define _POSIX_MQ_PRIO_MAX                      32
 132 #define _POSIX_RTSIG_MAX                        8
 133 #define _POSIX_SEM_NSEMS_MAX                    255
 134 #define _POSIX_SEM_MAX_VALUE                    32767
 135 #define _POSIX_SIGQUEUE_MAX                     32
 136 #define _POSIX_TIMER_MAX                        32
 137 #endif
 138
 139 #if __POSIX_VISIBLE >= 199506
 140 #define _POSIX_THREAD_DESTRUCTOR_INTERATIONS    4
 141 #define _POSIX_THREAD_KEYS_MAX                  128
 142 #define _POSIX_THREAD_THREADS_MAX               64
 143 #endif
 144
 145 #if __POSIX_VISIBLE >= 200112
 146 #define FILESIZEBITS                            32
 147 #define HOST_NAME_MAX                           _POSIX_HOST_NAME_MAX
 148 #define LOGIN_NAME_MAX                          _POSIX_LOGIN_NAME_MAX
 149 #define SYMLINK_MAX                             _POSIX_SYMLINK_MAX
 150 #define SYMLOOP_MAX                             _POSIX_SYMLOOP_MAX
 151 #define TTY_NAME_MAX                            _POSIX_TTY_NAME_MAX
 152 #define NGROUPS_MAX                             _POSIX_NGROUPS_MAX
 153
 154 #define _POSIX_HOST_NAME_MAX                    255
 155 #define _POSIX_LOGIN_NAME_MAX                   9
 156 #define _POSIX_SS_REPL_MAX                      4
 157 #define _POSIX_SYMLINK_MAX                      255
 158 #define _POSIX_SYMLOOP_MAX                      8
 159 #define _POSIX_RE_DUP_MAX                       255
 160 #define _POSIX_TRACE_EVENT_NAME_MAX             30
 161 #define _POSIX_TRACE_NAME_MAX                   8
 162 #define _POSIX_TRACE_SYS_MAX                    8
 163 #define _POSIX_TRACE_USER_EVENT_MAX             32
 164 #define _POSIX_TTY_NAME_MAX                     9
 165 #define _POSIX2_CHARCLASS_NAME_MAX              14
 166 #define _POSIX2_COLL_WEIGHTS_MAX                2
 167 #endif
 168
 169 #if __XSI_VISIBLE
 170 #define ATEXIT_MAX                              32
 171 #define IOV_MAX                                 _XOPEN_IOV_MAX
 172 #define PAGESIZE                                4096
 173 #define PAGE_SIZE                               PAGESIZE
 174 #define NAME_MAX                                _XOPEN_NAME_MAX
 175 #define PATH_MAX                                _XOPEN_PATH_MAX
 176
 177 #define _XOPEN_IOV_MAX                          16
 178 #define _XOPEN_NAME_MAX                         255
 179 #define _XOPEN_PATH_MAX                         1024
 180
 181 #define NL_ARGMAX                               9
 182 #define NL_LANGMAX                              14
 183 #define NL_MSGMAX                               32767
 184 #define NL_NMAX                                 1
 185 #define NL_SETMAX                               255
 186 #define NL_TEXTMAX                              _POSIX2_LINE_MAX
 187
 188 #define NZERO                                   0
 189 #endif
 190
 191 /*
 192  * The following are specific to particular POSIX subsystems, which are
 193  * switched on or off as part of <unistd.h>
 194  */
 195
 196 #if __POSIX_VERSION >= 200112
 197 /* _POSIX_ADVISORY_INFO */
 198 #define POSIX_ALLOC_SIZE_MIN                    // XXX
 199 #define POSIX_REC_INCR_XFER_SIZE                // XXX
 200 #define POSIX_REC_MAX_XFER_SIZE                 // XXX
 201 #define POSIX_REC_XFER_ALIGN                    // XXX
 202
 203 /* _POSIX_ASYNCHRONOUS_IO */
 204 #define AIO_LISTIO_MAX                          _POSIX_AIO_LISTIO_MAX
 205 #define AIO_MAX                                 _POSIX_AIO_MAX
 206 #define AIO_PRIO_DELTA_MAX                      0
 207
 208 /* _POSIX_MESSAGE_PASSING */
 209 #define MQ_OPEN_MAX                             _POSIX_MQ_OPEN_MAX
 210 #define MQ_PRIO_MAX                             _POSIX_MQ_PRIO_MAX
 211
 212 /* _POSIX_REALTIME_SIGNALS */
 213 #define RTSIG_MAX                               _POSIX_RTSIG_MAX
 214 #define SIGQUEUE_MAX                            _POSIX_SIGQUEUE_MAX
 215
 216 /* _POSIX_SEMAPHORES */
 217 #define SEM_NSEMS_MAX                           _POSIX_SEM_NSEMS_MAX
 218 #define SEM_VALUE_MAX                           _POSIX_SEM_VALUE_MAX
 219
 220 /* _POSIX_SPORADIC_SERVER */
 221 #define SS_REPL_MAX                             _POSIX_SS_REPL_MAX
 222
 223 /* _POSIX_THREADS */
 224 #define PTHREAD_DESTRUCTOR_ITERATIONS           _POSIX_THREAD_DESTRUCTOR_ITERATIONS
 225 #define PTHREAD_KEYS_MAX                        _POSIX_THREAD_KEYS_MAX
 226 #define PTHREAD_STACK_MIN                       0
 227 #define PTHREAD_THREADS_MAX                     _POSIX_THREAD_THREADS_MAX
 228
 229 /* _POSIX_TIMERS */
 230 #define DELAYTIMER_MAX                          _POSIX_DELAYTIMER_MAX
 231 #define TIMER_MAX                               _POSIX_TIMER_MAX
 232
 233 /* _POSIX_TRACE */
 234 #define TRACE_EVENT_NAME_MAX                    _POSIX_TRACE_EVENT_NAME_MAX
 235 #define TRACE_NAME_MAX                          _POSIX_TRACE_NAME_MAX
 236 #define TRACE_SYS_MAX                           _POSIX_TRACE_SYS_MAX
 237 #define TRACE_USER_EVENT_MAX                    _POSIX_TRACE_USER_EVENT_MAX
 238 #endif
 239
 240 #if __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE
 241 #define SIZE_T_MAX      ULONG_MAX               /* max value for a size_t */
 242 #endif
 243
 244 #endif /* _LIMITS_H_ */