1 /* A portable stdint.h
2 ****************************************************************************
3 * BSD License:
4 ****************************************************************************
5 *
6 * Copyright (c) 2005-2007 Paul Hsieh
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote products
19 * derived from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 ****************************************************************************
33 *
34 * Version 0.1.11
35 *
36 * The ANSI C standard committee, for the C99 standard, specified the
37 * inclusion of a new standard include file called stdint.h. This is
38 * a very useful and long desired include file which contains several
39 * very precise definitions for integer scalar types that is
40 * critically important for making portable several classes of
41 * applications including cryptography, hashing, variable length
42 * integer libraries and so on. But for most developers its likely
43 * useful just for programming sanity.
44 *
45 * The problem is that most compiler vendors have decided not to
46 * implement the C99 standard, and the next C++ language standard
47 * (which has a lot more mindshare these days) will be a long time in
48 * coming and its unknown whether or not it will include stdint.h or
49 * how much adoption it will have. Either way, it will be a long time
50 * before all compilers come with a stdint.h and it also does nothing
51 * for the extremely large number of compilers available today which
52 * do not include this file, or anything comparable to it.
53 *
54 * So that's what this file is all about. Its an attempt to build a
55 * single universal include file that works on as many platforms as
56 * possible to deliver what stdint.h is supposed to. A few things
57 * that should be noted about this file:
58 *
59 * 1) It is not guaranteed to be portable and/or present an identical
60 * interface on all platforms. The extreme variability of the
61 * ANSI C standard makes this an impossibility right from the
62 * very get go. Its really only meant to be useful for the vast
63 * majority of platforms that possess the capability of
64 * implementing usefully and precisely defined, standard sized
65 * integer scalars. Systems which are not intrinsically 2s
66 * complement may produce invalid constants.
67 *
68 * 2) There is an unavoidable use of non-reserved symbols.
69 *
70 * 3) Other standard include files are invoked.
71 *
72 * 4) This file may come in conflict with future platforms that do
73 * include stdint.h. The hope is that one or the other can be
74 * used with no real difference.
75 *
76 * 5) In the current verison, if your platform can't represent
77 * int32_t, int16_t and int8_t, it just dumps out with a compiler
78 * error.
79 *
80 * 6) 64 bit integers may or may not be defined. Test for their
81 * presence with the test: #ifdef INT64_MAX or #ifdef UINT64_MAX.
82 * Note that this is different from the C99 specification which
83 * requires the existence of 64 bit support in the compiler. If
84 * this is not defined for your platform, yet it is capable of
85 * dealing with 64 bits then it is because this file has not yet
86 * been extended to cover all of your system's capabilities.
87 *
88 * 7) (u)intptr_t may or may not be defined. Test for its presence
89 * with the test: #ifdef PTRDIFF_MAX. If this is not defined
90 * for your platform, then it is because this file has not yet
91 * been extended to cover all of your system's capabilities, not
92 * because its optional.
93 *
94 * 8) The following might not been defined even if your platform is
95 * capable of defining it:
96 *
97 * WCHAR_MIN
98 * WCHAR_MAX
99 * (u)int64_t
100 * PTRDIFF_MIN
101 * PTRDIFF_MAX
102 * (u)intptr_t
103 *
104 * 9) The following have not been defined:
105 *
106 * WINT_MIN
107 * WINT_MAX
108 *
109 * 10) The criteria for defining (u)int_least(*)_t isn't clear,
110 * except for systems which don't have a type that precisely
111 * defined 8, 16, or 32 bit types (which this include file does
112 * not support anyways). Default definitions have been given.
113 *
114 * 11) The criteria for defining (u)int_fast(*)_t isn't something I
115 * would trust to any particular compiler vendor or the ANSI C
116 * committee. It is well known that "compatible systems" are
117 * commonly created that have very different performance
118 * characteristics from the systems they are compatible with,
119 * especially those whose vendors make both the compiler and the
120 * system. Default definitions have been given, but its strongly
121 * recommended that users never use these definitions for any
122 * reason (they do *NOT* deliver any serious guarantee of
123 * improved performance -- not in this file, nor any vendor's
124 * stdint.h).
125 *
126 * 12) The following macros:
127 *
128 * PRINTF_INTMAX_MODIFIER
129 * PRINTF_INT64_MODIFIER
130 * PRINTF_INT32_MODIFIER
131 * PRINTF_INT16_MODIFIER
132 * PRINTF_LEAST64_MODIFIER
133 * PRINTF_LEAST32_MODIFIER
134 * PRINTF_LEAST16_MODIFIER
135 * PRINTF_INTPTR_MODIFIER
136 *
137 * are strings which have been defined as the modifiers required
138 * for the "d", "u" and "x" printf formats to correctly output
139 * (u)intmax_t, (u)int64_t, (u)int32_t, (u)int16_t, (u)least64_t,
140 * (u)least32_t, (u)least16_t and (u)intptr_t types respectively.
141 * PRINTF_INTPTR_MODIFIER is not defined for some systems which
142 * provide their own stdint.h. PRINTF_INT64_MODIFIER is not
143 * defined if INT64_MAX is not defined. These are an extension
144 * beyond what C99 specifies must be in stdint.h.
145 *
146 * In addition, the following macros are defined:
147 *
148 * PRINTF_INTMAX_HEX_WIDTH
149 * PRINTF_INT64_HEX_WIDTH
150 * PRINTF_INT32_HEX_WIDTH
151 * PRINTF_INT16_HEX_WIDTH
152 * PRINTF_INT8_HEX_WIDTH
153 * PRINTF_INTMAX_DEC_WIDTH
154 * PRINTF_INT64_DEC_WIDTH
155 * PRINTF_INT32_DEC_WIDTH
156 * PRINTF_INT16_DEC_WIDTH
157 * PRINTF_INT8_DEC_WIDTH
158 *
159 * Which specifies the maximum number of characters required to
160 * print the number of that type in either hexadecimal or decimal.
161 * These are an extension beyond what C99 specifies must be in
162 * stdint.h.
163 *
164 * Compilers tested (all with 0 warnings at their highest respective
165 * settings): Borland Turbo C 2.0, WATCOM C/C++ 11.0 (16 bits and 32
166 * bits), Microsoft Visual C++ 6.0 (32 bit), Microsoft Visual Studio
167 * .net (VC7), Intel C++ 4.0, GNU gcc v3.3.3
168 *
169 * This file should be considered a work in progress. Suggestions for
170 * improvements, especially those which increase coverage are strongly
171 * encouraged.
172 *
173 * Acknowledgements
174 *
175 * The following people have made significant contributions to the
176 * development and testing of this file:
177 *
178 * Chris Howie
179 * John Steele Scott
180 * Dave Thorup
181 *
182 */
183
184 /* Use sys/stdint.h on Modern BSDs */
185 #ifndef _SYS_STDINT_H_
186
187 #include <stddef.h>
188 #include <limits.h>
189 #include <signal.h>
190
191 /*
192 * For gcc with _STDINT_H, fill in the PRINTF_INT*_MODIFIER macros, and
193 * do nothing else. On the Mac OS X version of gcc this is _STDINT_H_.
194 */
195
196 #if ((defined(__STDC__) && __STDC__ && __STDC_VERSION__ >= 199901L) || (defined (__WATCOMC__) && (defined (_STDINT_H_INCLUDED) || __WATCOMC__ >= 1250)) || (defined(__GNUC__) && (defined(_STDINT_H) || defined(_STDINT_H_)) )) && !defined (_PSTDINT_H_INCLUDED) || defined(__FreeBSD__) || defined(__OpenBSD__)
197 #include <stdint.h>
198 #define _PSTDINT_H_INCLUDED
199 # ifndef PRINTF_INT64_MODIFIER
200 # define PRINTF_INT64_MODIFIER "ll"
201 # endif
202 # ifndef PRINTF_INT32_MODIFIER
203 # define PRINTF_INT32_MODIFIER "l"
204 # endif
205 # ifndef PRINTF_INT16_MODIFIER
206 # define PRINTF_INT16_MODIFIER "h"
207 # endif
208 # ifndef PRINTF_INTMAX_MODIFIER
209 # define PRINTF_INTMAX_MODIFIER PRINTF_INT64_MODIFIER
210 # endif
211 # ifndef PRINTF_INT64_HEX_WIDTH
212 # define PRINTF_INT64_HEX_WIDTH "16"
213 # endif
214 # ifndef PRINTF_INT32_HEX_WIDTH
215 # define PRINTF_INT32_HEX_WIDTH "8"
216 # endif
217 # ifndef PRINTF_INT16_HEX_WIDTH
218 # define PRINTF_INT16_HEX_WIDTH "4"
219 # endif
220 # ifndef PRINTF_INT8_HEX_WIDTH
221 # define PRINTF_INT8_HEX_WIDTH "2"
222 # endif
223 # ifndef PRINTF_INT64_DEC_WIDTH
224 # define PRINTF_INT64_DEC_WIDTH "20"
225 # endif
226 # ifndef PRINTF_INT32_DEC_WIDTH
227 # define PRINTF_INT32_DEC_WIDTH "10"
228 # endif
229 # ifndef PRINTF_INT16_DEC_WIDTH
230 # define PRINTF_INT16_DEC_WIDTH "5"
231 # endif
232 # ifndef PRINTF_INT8_DEC_WIDTH
233 # define PRINTF_INT8_DEC_WIDTH "3"
234 # endif
235 # ifndef PRINTF_INTMAX_HEX_WIDTH
236 # define PRINTF_INTMAX_HEX_WIDTH PRINTF_INT64_HEX_WIDTH
237 # endif
238 # ifndef PRINTF_INTMAX_DEC_WIDTH
239 # define PRINTF_INTMAX_DEC_WIDTH PRINTF_INT64_DEC_WIDTH
240 # endif
241
242 /*
243 * Something really weird is going on with Open Watcom. Just pull some of
244 * these duplicated definitions from Open Watcom's stdint.h file for now.
245 */
246
247 # if defined (__WATCOMC__) && __WATCOMC__ >= 1250
248 # if !defined (INT64_C)
249 # define INT64_C(x) (x + (INT64_MAX - INT64_MAX))
250 # endif
251 # if !defined (UINT64_C)
252 # define UINT64_C(x) (x + (UINT64_MAX - UINT64_MAX))
253 # endif
254 # if !defined (INT32_C)
255 # define INT32_C(x) (x + (INT32_MAX - INT32_MAX))
256 # endif
257 # if !defined (UINT32_C)
258 # define UINT32_C(x) (x + (UINT32_MAX - UINT32_MAX))
259 # endif
260 # if !defined (INT16_C)
261 # define INT16_C(x) (x)
262 # endif
263 # if !defined (UINT16_C)
264 # define UINT16_C(x) (x)
265 # endif
266 # if !defined (INT8_C)
267 # define INT8_C(x) (x)
268 # endif
269 # if !defined (UINT8_C)
270 # define UINT8_C(x) (x)
271 # endif
272 # if !defined (UINT64_MAX)
273 # define UINT64_MAX 18446744073709551615ULL
274 # endif
275 # if !defined (INT64_MAX)
276 # define INT64_MAX 9223372036854775807LL
277 # endif
278 # if !defined (UINT32_MAX)
279 # define UINT32_MAX 4294967295UL
280 # endif
281 # if !defined (INT32_MAX)
282 # define INT32_MAX 2147483647L
283 # endif
284 # if !defined (INTMAX_MAX)
285 # define INTMAX_MAX INT64_MAX
286 # endif
287 # if !defined (INTMAX_MIN)
288 # define INTMAX_MIN INT64_MIN
289 # endif
290 # endif
291 #endif
292
293 #ifndef _PSTDINT_H_INCLUDED
294 #define _PSTDINT_H_INCLUDED
295
296 #ifndef SIZE_MAX
297 # define SIZE_MAX (~(size_t)0)
298 #endif
299
300 /*
301 * Deduce the type assignments from limits.h under the assumption that
302 * integer sizes in bits are powers of 2, and follow the ANSI
303 * definitions.
304 */
305
306 #ifndef UINT8_MAX
307 # define UINT8_MAX 0xff
308 #endif
309 #ifndef uint8_t
310 # if (UCHAR_MAX == UINT8_MAX) || defined (S_SPLINT_S)
311 typedef unsigned char uint8_t;
312 # define UINT8_C(v) ((uint8_t) v)
313 # else
314 # error "Platform not supported"
315 # endif
316 #endif
317
318 #ifndef INT8_MAX
319 # define INT8_MAX 0x7f
320 #endif
321 #ifndef INT8_MIN
322 # define INT8_MIN INT8_C(0x80)
323 #endif
324 #ifndef int8_t
325 # if (SCHAR_MAX == INT8_MAX) || defined (S_SPLINT_S)
326 typedef signed char int8_t;
327 # define INT8_C(v) ((int8_t) v)
328 # else
329 # error "Platform not supported"
330 # endif
331 #endif
332
333 #ifndef UINT16_MAX
334 # define UINT16_MAX 0xffff
335 #endif
336 #ifndef uint16_t
337 #if (UINT_MAX == UINT16_MAX) || defined (S_SPLINT_S)
338 typedef unsigned int uint16_t;
339 # ifndef PRINTF_INT16_MODIFIER
340 # define PRINTF_INT16_MODIFIER ""
341 # endif
342 # define UINT16_C(v) ((uint16_t) (v))
343 #elif (USHRT_MAX == UINT16_MAX)
344 typedef unsigned short uint16_t;
345 # define UINT16_C(v) ((uint16_t) (v))
346 # ifndef PRINTF_INT16_MODIFIER
347 # define PRINTF_INT16_MODIFIER "h"
348 # endif
349 #else
350 #error "Platform not supported"
351 #endif
352 #endif
353
354 #ifndef INT16_MAX
355 # define INT16_MAX 0x7fff
356 #endif
357 #ifndef INT16_MIN
358 # define INT16_MIN INT16_C(0x8000)
359 #endif
360 #ifndef int16_t
361 #if (INT_MAX == INT16_MAX) || defined (S_SPLINT_S)
362 typedef signed int int16_t;
363 # define INT16_C(v) ((int16_t) (v))
364 # ifndef PRINTF_INT16_MODIFIER
365 # define PRINTF_INT16_MODIFIER ""
366 # endif
367 #elif (SHRT_MAX == INT16_MAX)
368 typedef signed short int16_t;
369 # define INT16_C(v) ((int16_t) (v))
370 # ifndef PRINTF_INT16_MODIFIER
371 # define PRINTF_INT16_MODIFIER "h"
372 # endif
373 #else
374 #error "Platform not supported"
375 #endif
376 #endif
377
378 #ifndef UINT32_MAX
379 # define UINT32_MAX (0xffffffffUL)
380 #endif
381 #ifndef uint32_t
382 #if (ULONG_MAX == UINT32_MAX) || defined (S_SPLINT_S)
383 typedef unsigned long uint32_t;
384 # define UINT32_C(v) v ## UL
385 # ifndef PRINTF_INT32_MODIFIER
386 # define PRINTF_INT32_MODIFIER "l"
387 # endif
388 #elif (UINT_MAX == UINT32_MAX)
389 typedef unsigned int uint32_t;
390 # ifndef PRINTF_INT32_MODIFIER
391 # define PRINTF_INT32_MODIFIER ""
392 # endif
393 # define UINT32_C(v) v ## U
394 #elif (USHRT_MAX == UINT32_MAX)
395 typedef unsigned short uint32_t;
396 # define UINT32_C(v) ((unsigned short) (v))
397 # ifndef PRINTF_INT32_MODIFIER
398 # define PRINTF_INT32_MODIFIER ""
399 # endif
400 #else
401 #error "Platform not supported"
402 #endif
403 #endif
404
405 #ifndef INT32_MAX
406 # define INT32_MAX (0x7fffffffL)
407 #endif
408 #ifndef INT32_MIN
409 # define INT32_MIN INT32_C(0x80000000)
410 #endif
411 #ifndef int32_t
412 #if (LONG_MAX == INT32_MAX) || defined (S_SPLINT_S)
413 typedef signed long int32_t;
414 # define INT32_C(v) v ## L
415 # ifndef PRINTF_INT32_MODIFIER
416 # define PRINTF_INT32_MODIFIER "l"
417 # endif
418 #elif (INT_MAX == INT32_MAX)
419 typedef signed int int32_t;
420 # define INT32_C(v) v
421 # ifndef PRINTF_INT32_MODIFIER
422 # define PRINTF_INT32_MODIFIER ""
423 # endif
424 #elif (SHRT_MAX == INT32_MAX)
425 typedef signed short int32_t;
426 # define INT32_C(v) ((short) (v))
427 # ifndef PRINTF_INT32_MODIFIER
428 # define PRINTF_INT32_MODIFIER ""
429 # endif
430 #else
431 #error "Platform not supported"
432 #endif
433 #endif
434
435 /*
436 * The macro stdint_int64_defined is temporarily used to record
437 * whether or not 64 integer support is available. It must be
438 * defined for any 64 integer extensions for new platforms that are
439 * added.
440 */
441
442 #undef stdint_int64_defined
443 #if (defined(__STDC__) && defined(__STDC_VERSION__)) || defined (S_SPLINT_S)
444 # if (__STDC__ && __STDC_VERSION >= 199901L) || defined (S_SPLINT_S)
445 # define stdint_int64_defined
446 typedef long long int64_t;
447 typedef unsigned long long uint64_t;
448 # define UINT64_C(v) v ## ULL
449 # define INT64_C(v) v ## LL
450 # ifndef PRINTF_INT64_MODIFIER
451 # define PRINTF_INT64_MODIFIER "ll"
452 # endif
453 # endif
454 #endif
455
456 #if !defined (stdint_int64_defined)
457 # if defined(__GNUC__)
458 # define stdint_int64_defined
459 __extension__ typedef long long int64_t;
460 __extension__ typedef unsigned long long uint64_t;
461 # define UINT64_C(v) v ## ULL
462 # define INT64_C(v) v ## LL
463 # ifndef PRINTF_INT64_MODIFIER
464 # define PRINTF_INT64_MODIFIER "ll"
465 # endif
466 # elif defined(__MWERKS__) || defined (__SUNPRO_C) || defined (__SUNPRO_CC) || defined (__APPLE_CC__) || defined (_LONG_LONG) || defined (_CRAYC) || defined (S_SPLINT_S)
467 # define stdint_int64_defined
468 typedef long long int64_t;
469 typedef unsigned long long uint64_t;
470 # define UINT64_C(v) v ## ULL
471 # define INT64_C(v) v ## LL
472 # ifndef PRINTF_INT64_MODIFIER
473 # define PRINTF_INT64_MODIFIER "ll"
474 # endif
475 # elif (defined(__WATCOMC__) && defined(__WATCOM_INT64__)) || (defined(_MSC_VER) && _INTEGRAL_MAX_BITS >= 64) || (defined (__BORLANDC__) && __BORLANDC__ > 0x460) || defined (__alpha) || defined (__DECC)
476 # define stdint_int64_defined
477 typedef __int64 int64_t;
478 typedef unsigned __int64 uint64_t;
479 # define UINT64_C(v) v ## UI64
480 # define INT64_C(v) v ## I64
481 # ifndef PRINTF_INT64_MODIFIER
482 # define PRINTF_INT64_MODIFIER "I64"
483 # endif
484 # endif
485 #endif
486
487 #if !defined (LONG_LONG_MAX) && defined (INT64_C)
488 # define LONG_LONG_MAX INT64_C (9223372036854775807)
489 #endif
490 #ifndef ULONG_LONG_MAX
491 # define ULONG_LONG_MAX UINT64_C (18446744073709551615)
492 #endif
493
494 #if !defined (INT64_MAX) && defined (INT64_C)
495 # define INT64_MAX INT64_C (9223372036854775807)
496 #endif
497 #if !defined (INT64_MIN) && defined (INT64_C)
498 # define INT64_MIN INT64_C (-9223372036854775808)
499 #endif
500 #if !defined (UINT64_MAX) && defined (INT64_C)
501 # define UINT64_MAX UINT64_C (18446744073709551615)
502 #endif
503
504 /*
505 * Width of hexadecimal for number field.
506 */
507
508 #ifndef PRINTF_INT64_HEX_WIDTH
509 # define PRINTF_INT64_HEX_WIDTH "16"
510 #endif
511 #ifndef PRINTF_INT32_HEX_WIDTH
512 # define PRINTF_INT32_HEX_WIDTH "8"
513 #endif
514 #ifndef PRINTF_INT16_HEX_WIDTH
515 # define PRINTF_INT16_HEX_WIDTH "4"
516 #endif
517 #ifndef PRINTF_INT8_HEX_WIDTH
518 # define PRINTF_INT8_HEX_WIDTH "2"
519 #endif
520
521 #ifndef PRINTF_INT64_DEC_WIDTH
522 # define PRINTF_INT64_DEC_WIDTH "20"
523 #endif
524 #ifndef PRINTF_INT32_DEC_WIDTH
525 # define PRINTF_INT32_DEC_WIDTH "10"
526 #endif
527 #ifndef PRINTF_INT16_DEC_WIDTH
528 # define PRINTF_INT16_DEC_WIDTH "5"
529 #endif
530 #ifndef PRINTF_INT8_DEC_WIDTH
531 # define PRINTF_INT8_DEC_WIDTH "3"
532 #endif
533
534 /*
535 * Ok, lets not worry about 128 bit integers for now. Moore's law says
536 * we don't need to worry about that until about 2040 at which point
537 * we'll have bigger things to worry about.
538 */
539
540 #ifdef stdint_int64_defined
541 typedef int64_t intmax_t;
542 typedef uint64_t uintmax_t;
543 # define INTMAX_MAX INT64_MAX
544 # define INTMAX_MIN INT64_MIN
545 # define UINTMAX_MAX UINT64_MAX
546 # define UINTMAX_C(v) UINT64_C(v)
547 # define INTMAX_C(v) INT64_C(v)
548 # ifndef PRINTF_INTMAX_MODIFIER
549 # define PRINTF_INTMAX_MODIFIER PRINTF_INT64_MODIFIER
550 # endif
551 # ifndef PRINTF_INTMAX_HEX_WIDTH
552 # define PRINTF_INTMAX_HEX_WIDTH PRINTF_INT64_HEX_WIDTH
553 # endif
554 # ifndef PRINTF_INTMAX_DEC_WIDTH
555 # define PRINTF_INTMAX_DEC_WIDTH PRINTF_INT64_DEC_WIDTH
556 # endif
557 #else
558 typedef int32_t intmax_t;
559 typedef uint32_t uintmax_t;
560 # define INTMAX_MAX INT32_MAX
561 # define UINTMAX_MAX UINT32_MAX
562 # define UINTMAX_C(v) UINT32_C(v)
563 # define INTMAX_C(v) INT32_C(v)
564 # ifndef PRINTF_INTMAX_MODIFIER
565 # define PRINTF_INTMAX_MODIFIER PRINTF_INT32_MODIFIER
566 # endif
567 # ifndef PRINTF_INTMAX_HEX_WIDTH
568 # define PRINTF_INTMAX_HEX_WIDTH PRINTF_INT32_HEX_WIDTH
569 # endif
570 # ifndef PRINTF_INTMAX_DEC_WIDTH
571 # define PRINTF_INTMAX_DEC_WIDTH PRINTF_INT32_DEC_WIDTH
572 # endif
573 #endif
574
575 /*
576 * Because this file currently only supports platforms which have
577 * precise powers of 2 as bit sizes for the default integers, the
578 * least definitions are all trivial. Its possible that a future
579 * version of this file could have different definitions.
580 */
581
582 #ifndef stdint_least_defined
583 typedef int8_t int_least8_t;
584 typedef uint8_t uint_least8_t;
585 typedef int16_t int_least16_t;
586 typedef uint16_t uint_least16_t;
587 typedef int32_t int_least32_t;
588 typedef uint32_t uint_least32_t;
589 # define PRINTF_LEAST32_MODIFIER PRINTF_INT32_MODIFIER
590 # define PRINTF_LEAST16_MODIFIER PRINTF_INT16_MODIFIER
591 # define UINT_LEAST8_MAX UINT8_MAX
592 # define INT_LEAST8_MAX INT8_MAX
593 # define UINT_LEAST16_MAX UINT16_MAX
594 # define INT_LEAST16_MAX INT16_MAX
595 # define UINT_LEAST32_MAX UINT32_MAX
596 # define INT_LEAST32_MAX INT32_MAX
597 # define INT_LEAST8_MIN INT8_MIN
598 # define INT_LEAST16_MIN INT16_MIN
599 # define INT_LEAST32_MIN INT32_MIN
600 # ifdef stdint_int64_defined
601 typedef int64_t int_least64_t;
602 typedef uint64_t uint_least64_t;
603 # define PRINTF_LEAST64_MODIFIER PRINTF_INT64_MODIFIER
604 # define UINT_LEAST64_MAX UINT64_MAX
605 # define INT_LEAST64_MAX INT64_MAX
606 # define INT_LEAST64_MIN INT64_MIN
607 # endif
608 #endif
609 #undef stdint_least_defined
610
611 /*
612 * The ANSI C committee pretending to know or specify anything about
613 * performance is the epitome of misguided arrogance. The mandate of
614 * this file is to *ONLY* ever support that absolute minimum
615 * definition of the fast integer types, for compatibility purposes.
616 * No extensions, and no attempt to suggest what may or may not be a
617 * faster integer type will ever be made in this file. Developers are
618 * warned to stay away from these types when using this or any other
619 * stdint.h.
620 */
621
622 typedef int_least8_t int_fast8_t;
623 typedef uint_least8_t uint_fast8_t;
624 typedef int_least16_t int_fast16_t;
625 typedef uint_least16_t uint_fast16_t;
626 typedef int_least32_t int_fast32_t;
627 typedef uint_least32_t uint_fast32_t;
628 #define UINT_FAST8_MAX UINT_LEAST8_MAX
629 #define INT_FAST8_MAX INT_LEAST8_MAX
630 #define UINT_FAST16_MAX UINT_LEAST16_MAX
631 #define INT_FAST16_MAX INT_LEAST16_MAX
632 #define UINT_FAST32_MAX UINT_LEAST32_MAX
633 #define INT_FAST32_MAX INT_LEAST32_MAX
634 #define INT_FAST8_MIN INT_LEAST8_MIN
635 #define INT_FAST16_MIN INT_LEAST16_MIN
636 #define INT_FAST32_MIN INT_LEAST32_MIN
637 #ifdef stdint_int64_defined
638 typedef int_least64_t int_fast64_t;
639 typedef uint_least64_t uint_fast64_t;
640 # define UINT_FAST64_MAX UINT_LEAST64_MAX
641 # define INT_FAST64_MAX INT_LEAST64_MAX
642 # define INT_FAST64_MIN INT_LEAST64_MIN
643 #endif
644
645 #undef stdint_int64_defined
646
647 /*
648 * Whatever piecemeal, per compiler thing we can do about the wchar_t
649 * type limits.
650 */
651
652 #if defined(__WATCOMC__) || defined(_MSC_VER) || defined (__GNUC__)
653 # include <wchar.h>
654 # ifndef WCHAR_MIN
655 # define WCHAR_MIN 0
656 # endif
657 # ifndef WCHAR_MAX
658 # define WCHAR_MAX ((wchar_t)-1)
659 # endif
660 #endif
661
662 /*
663 * Whatever piecemeal, per compiler/platform thing we can do about the
664 * (u)intptr_t types and limits.
665 */
666
667 #if defined (_MSC_VER) && defined (_UINTPTR_T_DEFINED)
668 # define STDINT_H_UINTPTR_T_DEFINED
669 #endif
670
671 #ifndef STDINT_H_UINTPTR_T_DEFINED
672 # if defined (__alpha__) || defined (__ia64__) || defined (__x86_64__) || defined (_WIN64)
673 # define stdint_intptr_bits 64
674 # elif defined (__WATCOMC__) || defined (__TURBOC__)
675 # if defined(__TINY__) || defined(__SMALL__) || defined(__MEDIUM__)
676 # define stdint_intptr_bits 16
677 # else
678 # define stdint_intptr_bits 32
679 # endif
680 # elif defined (__i386__) || defined (_WIN32) || defined (WIN32)
681 # define stdint_intptr_bits 32
682 # elif defined (__INTEL_COMPILER)
683 /* TODO -- what will Intel do about x86-64? */
684 # endif
685
686 # ifdef stdint_intptr_bits
687 # define stdint_intptr_glue3_i(a,b,c) a##b##c
688 # define stdint_intptr_glue3(a,b,c) stdint_intptr_glue3_i(a,b,c)
689 # ifndef PRINTF_INTPTR_MODIFIER
690 # define PRINTF_INTPTR_MODIFIER stdint_intptr_glue3(PRINTF_INT,stdint_intptr_bits,_MODIFIER)
691 # endif
692 # ifndef PTRDIFF_MAX
693 # define PTRDIFF_MAX stdint_intptr_glue3(INT,stdint_intptr_bits,_MAX)
694 # endif
695 # ifndef PTRDIFF_MIN
696 # define PTRDIFF_MIN stdint_intptr_glue3(INT,stdint_intptr_bits,_MIN)
697 # endif
698 # ifndef UINTPTR_MAX
699 # define UINTPTR_MAX stdint_intptr_glue3(UINT,stdint_intptr_bits,_MAX)
700 # endif
701 # ifndef INTPTR_MAX
702 # define INTPTR_MAX stdint_intptr_glue3(INT,stdint_intptr_bits,_MAX)
703 # endif
704 # ifndef INTPTR_MIN
705 # define INTPTR_MIN stdint_intptr_glue3(INT,stdint_intptr_bits,_MIN)
706 # endif
707 # ifndef INTPTR_C
708 # define INTPTR_C(x) stdint_intptr_glue3(INT,stdint_intptr_bits,_C)(x)
709 # endif
710 # ifndef UINTPTR_C
711 # define UINTPTR_C(x) stdint_intptr_glue3(UINT,stdint_intptr_bits,_C)(x)
712 # endif
713 typedef stdint_intptr_glue3(uint,stdint_intptr_bits,_t) uintptr_t;
714 typedef stdint_intptr_glue3( int,stdint_intptr_bits,_t) intptr_t;
715 # else
716 /* TODO -- This following is likely wrong for some platforms, and does
717 nothing for the definition of uintptr_t. */
718 typedef ptrdiff_t intptr_t;
719 # endif
720 # define STDINT_H_UINTPTR_T_DEFINED
721 #endif
722
723 /*
724 * Assumes sig_atomic_t is signed and we have a 2s complement machine.
725 */
726
727 #ifndef SIG_ATOMIC_MAX
728 # define SIG_ATOMIC_MAX ((((sig_atomic_t) 1) << (sizeof (sig_atomic_t)*CHAR_BIT-1)) - 1)
729 #endif
730
731 #endif
732
733 #if defined (__TEST_PSTDINT_FOR_CORRECTNESS)
734
735 /*
736 * Please compile with the maximum warning settings to make sure macros are not
737 * defined more than once.
738 */
739
740 #include <stdlib.h>
741 #include <stdio.h>
742 #include <string.h>
743
744 #define glue3_aux(x,y,z) x ## y ## z
745 #define glue3(x,y,z) glue3_aux(x,y,z)
746
747 #define DECLU(bits) glue3(uint,bits,_t) glue3(u,bits,=) glue3(UINT,bits,_C) (0);
748 #define DECLI(bits) glue3(int,bits,_t) glue3(i,bits,=) glue3(INT,bits,_C) (0);
749
750 #define DECL(us,bits) glue3(DECL,us,) (bits)
751
752 #define TESTUMAX(bits) glue3(u,bits,=) glue3(~,u,bits); if (glue3(UINT,bits,_MAX) glue3(!=,u,bits)) printf ("Something wrong with UINT%d_MAX\n", bits)
753
main()754 int main () {
755 DECL(I,8)
756 DECL(U,8)
757 DECL(I,16)
758 DECL(U,16)
759 DECL(I,32)
760 DECL(U,32)
761 #ifdef INT64_MAX
762 DECL(I,64)
763 DECL(U,64)
764 #endif
765 intmax_t imax = INTMAX_C(0);
766 uintmax_t umax = UINTMAX_C(0);
767 char str0[256], str1[256];
768
769 sprintf (str0, "%d %x\n", 0, ~0);
770
771 sprintf (str1, "%d %x\n", i8, ~0);
772 if (0 != strcmp (str0, str1)) printf ("Something wrong with i8 : %s\n", str1);
773 sprintf (str1, "%u %x\n", u8, ~0);
774 if (0 != strcmp (str0, str1)) printf ("Something wrong with u8 : %s\n", str1);
775 sprintf (str1, "%d %x\n", i16, ~0);
776 if (0 != strcmp (str0, str1)) printf ("Something wrong with i16 : %s\n", str1);
777 sprintf (str1, "%u %x\n", u16, ~0);
778 if (0 != strcmp (str0, str1)) printf ("Something wrong with u16 : %s\n", str1);
779 sprintf (str1, "%" PRINTF_INT32_MODIFIER "d %x\n", i32, ~0);
780 if (0 != strcmp (str0, str1)) printf ("Something wrong with i32 : %s\n", str1);
781 sprintf (str1, "%" PRINTF_INT32_MODIFIER "u %x\n", u32, ~0);
782 if (0 != strcmp (str0, str1)) printf ("Something wrong with u32 : %s\n", str1);
783 #ifdef INT64_MAX
784 sprintf (str1, "%" PRINTF_INT64_MODIFIER "d %x\n", i64, ~0);
785 if (0 != strcmp (str0, str1)) printf ("Something wrong with i64 : %s\n", str1);
786 #endif
787 sprintf (str1, "%" PRINTF_INTMAX_MODIFIER "d %x\n", imax, ~0);
788 if (0 != strcmp (str0, str1)) printf ("Something wrong with imax : %s\n", str1);
789 sprintf (str1, "%" PRINTF_INTMAX_MODIFIER "u %x\n", umax, ~0);
790 if (0 != strcmp (str0, str1)) printf ("Something wrong with umax : %s\n", str1);
791
792 TESTUMAX(8);
793 TESTUMAX(16);
794 TESTUMAX(32);
795 #ifdef INT64_MAX
796 TESTUMAX(64);
797 #endif
798
799 return EXIT_SUCCESS;
800 }
801
802 #endif
803
804 #endif /* _SYS_STDINT_H_ */
805