pd.if.org Git - pdclib.old/blob - internals/_PDCLIB_int.h

   1 #ifndef __PDCLIB_INT_H
   2 #define __PDCLIB_INT_H __PDCLIB_INT_H
   3
   4 /* PDCLib internal integer logic <_PDCLIB_int.h>
   5
   6    This file is part of the Public Domain C Library (PDCLib).
   7    Permission is granted to use, modify, and / or redistribute at will.
   8 */
   9
  10 /* -------------------------------------------------------------------------- */
  11 /* You should not have to edit anything in this file; if you DO have to, it   */
  12 /* would be considered a bug / missing feature: notify the author(s).         */
  13 /* -------------------------------------------------------------------------- */
  14
  15 #include <_PDCLIB_config.h>
  16 #include <_PDCLIB_aux.h>
  17
  18 /* null pointer constant */
  19 #define _PDCLIB_NULL 0
  20
  21 /* -------------------------------------------------------------------------- */
  22 /* Limits of native datatypes                                                 */
  23 /* -------------------------------------------------------------------------- */
  24 /* The definition of minimum limits for unsigned datatypes is done because    */
  25 /* later on we will "construct" limits for other abstract types:              */
  26 /* USHRT -> _PDCLIB_ + USHRT + _MIN -> _PDCLIB_USHRT_MIN -> 0                 */
  27 /* INT -> _PDCLIB_ + INT + _MIN -> _PDCLIB_INT_MIN -> ... you get the idea.   */
  28 /* -------------------------------------------------------------------------- */
  29
  30 /* Setting 'char' limits                                                      */
  31 #define _PDCLIB_CHAR_BIT    8
  32 #define _PDCLIB_UCHAR_MIN   0
  33 #define _PDCLIB_UCHAR_MAX   0xff
  34 #define _PDCLIB_SCHAR_MIN   (-0x7f - 1)
  35 #define _PDCLIB_SCHAR_MAX   0x7f
  36 #ifdef  _PDCLIB_CHAR_SIGNED
  37 #define _PDCLIB_CHAR_MIN    _PDCLIB_SCHAR_MIN
  38 #define _PDCLIB_CHAR_MAX    _PDCLIB_SCHAR_MAX
  39 #else
  40 #define _PDCLIB_CHAR_MIN    0
  41 #define _PDCLIB_CHAR_MAX    _PDCLIB_UCHAR_MAX
  42 #endif
  43
  44 /* Setting 'short' limits                                                     */
  45 #if     _PDCLIB_SHRT_BYTES == 2
  46 #define _PDCLIB_SHRT_MAX      0x7fff
  47 #define _PDCLIB_SHRT_MIN      (-0x7fff - 1)
  48 #define _PDCLIB_USHRT_MAX     0xffff
  49 #else
  50 #error Unsupported width of 'short' (not 16 bit).
  51 #endif
  52 #define _PDCLIB_USHRT_MIN 0
  53
  54 #if _PDCLIB_INT_BYTES < _PDCLIB_SHRT_BYTES
  55 #error Bogus setting: short > int? Check _PDCLIB_config.h.
  56 #endif
  57
  58 /* Setting 'int' limits                                                       */
  59 #if     _PDCLIB_INT_BYTES == 2
  60 #define _PDCLIB_INT_MAX   0x7fff
  61 #define _PDCLIB_INT_MIN   (-0x7fff - 1)
  62 #define _PDCLIB_UINT_MAX  0xffffU
  63 #elif   _PDCLIB_INT_BYTES == 4
  64 #define _PDCLIB_INT_MAX   0x7fffffff
  65 #define _PDCLIB_INT_MIN   (-0x7fffffff - 1)
  66 #define _PDCLIB_UINT_MAX  0xffffffffU
  67 #elif _PDCLIB_INT_BYTES   == 8
  68 #define _PDCLIB_INT_MAX   0x7fffffffffffffff
  69 #define _PDCLIB_INT_MIN   (-0x7fffffffffffffff - 1)
  70 #define _PDCLIB_UINT_MAX  0xffffffffffffffff
  71 #else
  72 #error Unsupported width of 'int' (neither 16, 32, nor 64 bit).
  73 #endif
  74 #define _PDCLIB_UINT_MIN 0
  75
  76 /* Setting 'long' limits                                                      */
  77 #if   _PDCLIB_LONG_BYTES   == 4
  78 #define _PDCLIB_LONG_MAX   0x7fffffffL
  79 #define _PDCLIB_LONG_MIN   (-0x7fffffffL - 1L)
  80 #define _PDCLIB_ULONG_MAX  0xffffffffUL
  81 #elif   _PDCLIB_LONG_BYTES == 8
  82 #define _PDCLIB_LONG_MAX   0x7fffffffffffffffL
  83 #define _PDCLIB_LONG_MIN   (-0x7fffffffffffffffL - 1L)
  84 #define _PDCLIB_ULONG_MAX  0xffffffffffffffffUL
  85 #else
  86 #error Unsupported width of 'long' (neither 32 nor 64 bit).
  87 #endif
  88 #define _PDCLIB_ULONG_MIN 0
  89
  90 /* Setting 'long long' limits                                                 */
  91 #if _PDCLIB_LLONG_BYTES    == 8
  92 #define _PDCLIB_LLONG_MAX  0x7fffffffffffffffLL
  93 #define _PDCLIB_LLONG_MIN  (-0x7fffffffffffffffLL - 1LL)
  94 #define _PDCLIB_ULLONG_MAX 0xffffffffffffffffULL
  95 #elif _PDCLIB_LLONG_BYTES  == 16
  96 #define _PDCLIB_LLONG_MAX  0x7fffffffffffffffffffffffffffffffLL
  97 #define _PDCLIB_LLONG_MIN  (-0x7fffffffffffffffffffffffffffffffLL - 1LL)
  98 #define _PDCLIB_ULLONG_MAX 0xffffffffffffffffffffffffffffffffULL
  99 #else
 100 #error Unsupported width of 'long long' (neither 64 nor 128 bit).
 101 #endif
 102 #define _PDCLIB_ULLONG_MIN 0
 103
 104 /* -------------------------------------------------------------------------- */
 105 /* <stdint.h> exact-width types and their limits                              */
 106 /* -------------------------------------------------------------------------- */
 107 /* Note that, for the "standard" widths of 8, 16, 32 and 64 bit, the "LEAST"  */
 108 /* types are identical to the "exact-width" types, by definition.             */
 109
 110 /* Setting 'int8_t', its limits, its literal, and conversion macros.          */
 111 #if     _PDCLIB_CHAR_BIT == 8
 112 typedef signed char        _PDCLIB_int8_t;
 113 typedef unsigned char      _PDCLIB_uint8_t;
 114 #define _PDCLIB_INT8_MAX   _PDCLIB_CHAR_MAX
 115 #define _PDCLIB_INT8_MIN   _PDCLIB_CHAR_MIN
 116 #define _PDCLIB_UINT8_MAX  _PDCLIB_UCHAR_MAX
 117 #define _PDCLIB_8_CONV     hh
 118 #else
 119 #error Unsupported width of char (not 8 bits).
 120 #endif
 121
 122 /* Setting 'int16_t', its limits, its literal, and conversion macros.         */
 123 #if     _PDCLIB_INT_BYTES  == 2
 124 typedef signed int         _PDCLIB_int16_t;
 125 typedef unsigned int       _PDCLIB_uint16_t;
 126 #define _PDCLIB_INT16_MAX  _PDCLIB_INT_MAX
 127 #define _PDCLIB_INT16_MIN  _PDCLIB_INT_MIN
 128 #define _PDCLIB_UINT16_MAX _PDCLIB_UINT_MAX
 129 #define _PDCLIB_16_CONV
 130 #elif   _PDCLIB_SHRT_BYTES == 2
 131 typedef signed short       _PDCLIB_int16_t;
 132 typedef unsigned short     _PDCLIB_uint16_t;
 133 #define _PDCLIB_INT16_MAX  _PDCLIB_SHRT_MAX
 134 #define _PDCLIB_INT16_MIN  _PDCLIB_SHRT_MIN
 135 #define _PDCLIB_UINT16_MAX _PDCLIB_USHRT_MAX
 136 #define _PDCLIB_16_CONV    h
 137 #else
 138 #error Neither 'short' nor 'int' are 16-bit.
 139 #endif
 140
 141 /* Setting 'int32_t', its limits, its literal, and conversion macros.         */
 142 #if     _PDCLIB_INT_BYTES  == 4
 143 typedef signed int         _PDCLIB_int32_t;
 144 typedef unsigned int       _PDCLIB_uint32_t;
 145 #define _PDCLIB_INT32_MAX  _PDCLIB_INT_MAX
 146 #define _PDCLIB_INT32_MIN  _PDCLIB_INT_MIN
 147 #define _PDCLIB_UINT32_MAX _PDCLIB_UINT_MAX
 148 #define _PDCLIB_INT32_LITERAL
 149 #define _PDCLIB_UINT32_LITERAL
 150 #define _PDCLIB_32_CONV
 151 #elif   _PDCLIB_LONG_BYTES == 4
 152 typedef signed long        _PDCLIB_int32_t;
 153 typedef unsigned long      _PDCLIB_uint32_t;
 154 #define _PDCLIB_INT32_MAX  _PDCLIB_LONG_MAX
 155 #define _PDCLIB_INT32_MIN  _PDCLIB_LONG_MIN
 156 #define _PDCLIB_UINT32_MAX _PDCLIB_LONG_MAX
 157 #define _PDCLIB_INT32_LITERAL  l
 158 #define _PDCLIB_UINT32_LITERAL ul
 159 #define _PDCLIB_32_CONV        l
 160 #else
 161 #error Neither 'int' nor 'long' are 32-bit.
 162 #endif
 163
 164 /* Setting 'int64_t', its limits, its literal, and conversion macros.         */
 165 #if     _PDCLIB_LONG_BYTES == 8 && !defined(_PDCLIB_INT64_IS_LLONG)
 166 typedef signed long        _PDCLIB_int64_t;
 167 typedef unsigned long      _PDCLIB_uint64_t;
 168 #define _PDCLIB_INT64_MAX  _PDCLIB_LONG_MAX
 169 #define _PDCLIB_INT64_MIN  _PDCLIB_LONG_MIN
 170 #define _PDCLIB_UINT64_MAX  _PDCLIB_ULONG_MAX
 171 #define _PDCLIB_INT64_LITERAL  l
 172 #define _PDCLIB_UINT64_LITERAL ul
 173 #define _PDCLIB_64_CONV        l
 174 #elif _PDCLIB_LLONG_BYTES  == 8
 175 typedef signed long long   _PDCLIB_int64_t;
 176 typedef unsigned long long _PDCLIB_uint64_t;
 177 #define _PDCLIB_INT64_MAX  _PDCLIB_LLONG_MAX
 178 #define _PDCLIB_INT64_MIN  _PDCLIB_LLONG_MIN
 179 #define _PDCLIB_UINT64_MAX  _PDCLIB_ULLONG_MAX
 180 #define _PDCLIB_INT64_LITERAL  ll
 181 #define _PDCLIB_UINT64_LITERAL ull
 182 #define _PDCLIB_64_CONV        ll
 183 #else
 184 #error Neither 'long' nor 'long long' are 64-bit.
 185 #endif
 186
 187 /* -------------------------------------------------------------------------- */
 188 /* <stdint.h> "fastest" types and their limits                                */
 189 /* -------------------------------------------------------------------------- */
 190 /* This is, admittedly, butt-ugly. But at least it's ugly where the average   */
 191 /* user of PDCLib will never see it, and makes <_PDCLIB_config.h> much        */
 192 /* cleaner.                                                                   */
 193 /* -------------------------------------------------------------------------- */
 194
 195 typedef _PDCLIB_fast8          _PDCLIB_int_fast8_t;
 196 typedef unsigned _PDCLIB_fast8 _PDCLIB_uint_fast8_t;
 197 #define _PDCLIB_INT_FAST8_MIN  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST8 ), _MIN )
 198 #define _PDCLIB_INT_FAST8_MAX  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST8 ), _MAX )
 199 #define _PDCLIB_UINT_FAST8_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_FAST8 ), _MAX )
 200
 201 typedef _PDCLIB_fast16          _PDCLIB_int_fast16_t;
 202 typedef unsigned _PDCLIB_fast16 _PDCLIB_uint_fast16_t;
 203 #define _PDCLIB_INT_FAST16_MIN  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST16 ), _MIN )
 204 #define _PDCLIB_INT_FAST16_MAX  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST16 ), _MAX )
 205 #define _PDCLIB_UINT_FAST16_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_FAST16 ), _MAX )
 206
 207 typedef _PDCLIB_fast32          _PDCLIB_int_fast32_t;
 208 typedef unsigned _PDCLIB_fast32 _PDCLIB_uint_fast32_t;
 209 #define _PDCLIB_INT_FAST32_MIN  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST32 ), _MIN )
 210 #define _PDCLIB_INT_FAST32_MAX  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST32 ), _MAX )
 211 #define _PDCLIB_UINT_FAST32_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_FAST32 ), _MAX )
 212
 213 typedef _PDCLIB_fast64          _PDCLIB_int_fast64_t;
 214 typedef unsigned _PDCLIB_fast64 _PDCLIB_uint_fast64_t;
 215 #define _PDCLIB_INT_FAST64_MIN  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST64 ), _MIN )
 216 #define _PDCLIB_INT_FAST64_MAX  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_FAST64 ), _MAX )
 217 #define _PDCLIB_UINT_FAST64_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_FAST64 ), _MAX )
 218
 219 /* -------------------------------------------------------------------------- */
 220 /* Various <stddef.h> typedefs and limits                                     */
 221 /* -------------------------------------------------------------------------- */
 222
 223 typedef _PDCLIB_ptrdiff     _PDCLIB_ptrdiff_t;
 224 #define _PDCLIB_PTRDIFF_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_PTRDIFF ), _MIN )
 225 #define _PDCLIB_PTRDIFF_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_PTRDIFF ), _MAX )
 226
 227 #define _PDCLIB_SIG_ATOMIC_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_SIG_ATOMIC ), _MIN )
 228 #define _PDCLIB_SIG_ATOMIC_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_SIG_ATOMIC ), _MAX )
 229
 230 typedef _PDCLIB_size     _PDCLIB_size_t;
 231 #define _PDCLIB_SIZE_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_SIZE ), _MAX )
 232
 233 typedef _PDCLIB_wint      _PDCLIB_wint_t;
 234 #ifndef __cplusplus
 235     typedef _PDCLIB_wchar     _PDCLIB_wchar_t;
 236 #else
 237     typedef wchar_t _PDCLIB_wchar_t;
 238 #endif
 239 #define _PDCLIB_WCHAR_MIN _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_WCHAR ), _MIN )
 240 #define _PDCLIB_WCHAR_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_WCHAR ), _MAX )
 241
 242 typedef _PDCLIB_intptr          _PDCLIB_intptr_t;
 243 typedef unsigned _PDCLIB_intptr _PDCLIB_uintptr_t;
 244 #define _PDCLIB_INTPTR_MIN  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_INTPTR ), _MIN )
 245 #define _PDCLIB_INTPTR_MAX  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_INTPTR ), _MAX )
 246 #define _PDCLIB_UINTPTR_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_INTPTR ), _MAX )
 247
 248 typedef _PDCLIB_intmax          _PDCLIB_intmax_t;
 249 typedef unsigned _PDCLIB_intmax _PDCLIB_uintmax_t;
 250 #define _PDCLIB_INTMAX_MIN  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_INTMAX ), _MIN )
 251 #define _PDCLIB_INTMAX_MAX  _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_, _PDCLIB_INTMAX ), _MAX )
 252 #define _PDCLIB_UINTMAX_MAX _PDCLIB_concat( _PDCLIB_concat( _PDCLIB_U, _PDCLIB_INTMAX ), _MAX )
 253 #define _PDCLIB_INTMAX_C( value )  _PDCLIB_concat( value, _PDCLIB_INTMAX_LITERAL )
 254 #define _PDCLIB_UINTMAX_C( value ) _PDCLIB_concat( value, _PDCLIB_concat( u, _PDCLIB_INTMAX_LITERAL ) )
 255
 256 /* -------------------------------------------------------------------------- */
 257 /* Various <time.h> internals                                                 */
 258 /* -------------------------------------------------------------------------- */
 259
 260 typedef _PDCLIB_time            _PDCLIB_time_t;
 261 typedef _PDCLIB_clock           _PDCLIB_clock_t;
 262
 263 #if !defined(_PDCLIB_DEFINE_STRUCT_TIMESPEC)
 264 #define _PDCLIB_DEFINE_STRUCT_TIMESPEC()    \
 265     struct timespec {                       \
 266         time_t tv_sec;                      \
 267         long tv_nsec;                       \
 268     };
 269 #endif
 270
 271 #if !defined(_PDCLIB_DEFINE_STRUCT_TM)
 272 #define _PDCLIB_DEFINE_STRUCT_TM()          \
 273     struct tm {                             \
 274         int tm_sec;                         \
 275         int tm_min;                         \
 276         int tm_hour;                        \
 277         int tm_mday;                        \
 278         int tm_mon;                         \
 279         int tm_year;                        \
 280         int tm_wday;                        \
 281         int tm_yday;                        \
 282         int tm_isdst;                       \
 283     };
 284 #endif
 285
 286 /* -------------------------------------------------------------------------- */
 287 /* Internal data types                                                        */
 288 /* -------------------------------------------------------------------------- */
 289
 290 /* Structure required by both atexit() and exit() for handling atexit functions */
 291 struct _PDCLIB_exitfunc_t
 292 {
 293     struct _PDCLIB_exitfunc_t * next;
 294     void (*func)( void );
 295 };
 296
 297 /* -------------------------------------------------------------------------- */
 298 /* Declaration of helper functions (implemented in functions/_PDCLIB).        */
 299 /* -------------------------------------------------------------------------- */
 300
 301 /* This is the main function called by atoi(), atol() and atoll().            */
 302 _PDCLIB_intmax_t _PDCLIB_atomax( const char * s );
 303
 304 /* Two helper functions used by strtol(), strtoul() and long long variants.   */
 305 const char * _PDCLIB_strtox_prelim( const char * p, char * sign, int * base );
 306 _PDCLIB_uintmax_t _PDCLIB_strtox_main( const char ** p, unsigned int base, _PDCLIB_uintmax_t error, _PDCLIB_uintmax_t limval, int limdigit, char * sign );
 307
 308 /* Digits arrays used by various integer conversion functions */
 309 extern char _PDCLIB_digits[];
 310 extern char _PDCLIB_Xdigits[];
 311
 312 /* -------------------------------------------------------------------------- */
 313 /* errno                                                                      */
 314 /* -------------------------------------------------------------------------- */
 315
 316 /* If PDCLib would call its error number "errno" directly, there would be no way
 317    to catch its value from underlying system calls that also use it (i.e., POSIX
 318    operating systems). That is why we use an internal name, providing a means to
 319    access it through <errno.h>.
 320 */
 321 extern int _PDCLIB_errno;
 322
 323 /* A mechanism for delayed evaluation. (Not sure if this is really necessary, so
 324    no detailed documentation on the "why".)
 325 */
 326 int * _PDCLIB_errno_func( void ) _PDCLIB_nothrow;
 327
 328 /* -------------------------------------------------------------------------- */
 329 /* <ctype.h> lookup tables                                                    */
 330 /* -------------------------------------------------------------------------- */
 331
 332 #define _PDCLIB_CTYPE_ALPHA   1
 333 #define _PDCLIB_CTYPE_BLANK   2
 334 #define _PDCLIB_CTYPE_CNTRL   4
 335 #define _PDCLIB_CTYPE_GRAPH   8
 336 #define _PDCLIB_CTYPE_PUNCT  16
 337 #define _PDCLIB_CTYPE_SPACE  32
 338 #define _PDCLIB_CTYPE_LOWER  64
 339 #define _PDCLIB_CTYPE_UPPER 128
 340 #define _PDCLIB_CTYPE_DIGIT 256
 341 #define _PDCLIB_CTYPE_XDIGT 512
 342
 343 struct _PDCLIB_ctype_t
 344 {
 345     _PDCLIB_uint16_t flags;
 346     unsigned char upper;
 347     unsigned char lower;
 348     unsigned char collation;
 349 };
 350
 351 /* -------------------------------------------------------------------------- */
 352 /* locale / wchar / uchar                                                     */
 353 /* -------------------------------------------------------------------------- */
 354
 355 #ifndef __cplusplus
 356 typedef _PDCLIB_int16_t         _PDCLIB_char16_t;
 357 typedef _PDCLIB_int32_t         _PDCLIB_char32_t;
 358 #else
 359 typedef char16_t                _PDCLIB_char16_t;
 360 typedef char32_t                _PDCLIB_char32_t;
 361 #endif
 362
 363 typedef struct _PDCLIB_mbstate {
 364     union {
 365         /* Is this the best way to represent this? Is this big enough? */
 366         _PDCLIB_uint64_t _St64[15];
 367         _PDCLIB_uint32_t _St32[31];
 368         _PDCLIB_uint16_t _St16[62];
 369         unsigned char    _StUC[124];
 370         signed   char    _StSC[124];
 371                  char    _StC [124];
 372     };
 373
 374     union {
 375         /* c16/related functions: Surrogate storage
 376          *
 377          * If zero, no surrogate pending. If nonzero, surrogate.
 378          */
 379         _PDCLIB_uint16_t     _Surrogate;
 380
 381         /* Reserved for potential mbtoutf8/etc functions */
 382         unsigned char        _U8[4];
 383     };
 384 } _PDCLIB_mbstate_t;
 385
 386 typedef struct _PDCLIB_charcodec  _PDCLIB_charcodec_t;
 387 typedef struct _PDCLIB_locale     _PDCLIB_locale_t;
 388 typedef struct lconv              _PDCLIB_lconv_t;
 389
 390 /* -------------------------------------------------------------------------- */
 391 /* stdio                                                                      */
 392 /* -------------------------------------------------------------------------- */
 393
 394 /* Position / status structure for getpos() / fsetpos(). */
 395 typedef struct _PDCLIB_fpos
 396 {
 397     _PDCLIB_int_fast64_t offset; /* File position offset */
 398     _PDCLIB_mbstate_t    mbs;    /* Multibyte parsing state */
 399 } _PDCLIB_fpos_t;
 400
 401 typedef struct _PDCLIB_fileops  _PDCLIB_fileops_t;
 402 typedef union  _PDCLIB_fd       _PDCLIB_fd_t;
 403 typedef struct _PDCLIB_file     _PDCLIB_file_t; // Rename to _PDCLIB_FILE?
 404
 405 /* Status structure required by _PDCLIB_print(). */
 406 struct _PDCLIB_status_t
 407 {
 408     int              base;   /* base to which the value shall be converted   */
 409     _PDCLIB_int_fast32_t flags; /* flags and length modifiers                */
 410     unsigned         n;      /* print: maximum characters to be written      */
 411                              /* scan:  number matched conversion specifiers  */
 412     unsigned         i;      /* number of characters read/written            */
 413     unsigned         current;/* chars read/written in the CURRENT conversion */
 414     char *           s;      /* *sprintf(): target buffer                    */
 415                              /* *sscanf():  source string                    */
 416     unsigned         width;  /* specified field width                        */
 417     int              prec;   /* specified field precision                    */
 418     _PDCLIB_file_t * stream; /* *fprintf() / *fscanf() stream         */
 419     _PDCLIB_va_list  arg;    /* argument stack                               */
 420 };
 421
 422 #endif