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