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1/* Copyright (C) 2001-2002, 2004-2007 Free Software Foundation, Inc.
2 Written by Paul Eggert, Bruno Haible, Sam Steingold, Peter Burwood.
3 This file is part of gnulib.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3, or (at your option)
8 any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
18
19/*
20 * ISO C 99 <stdint.h> for platforms that lack it.
21 * <http://www.opengroup.org/susv3xbd/stdint.h.html>
22 */
23
24#ifndef _GL_STDINT_H
25
26/* When including a system file that in turn includes <inttypes.h>,
27 use the system <inttypes.h>, not our substitute. This avoids
28 problems with (for example) VMS, whose <sys/bitypes.h> includes
29 <inttypes.h>. */
30#define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
31
32/* Get those types that are already defined in other system include
33 files, so that we can "#define int8_t signed char" below without
34 worrying about a later system include file containing a "typedef
35 signed char int8_t;" that will get messed up by our macro. Our
36 macros should all be consistent with the system versions, except
37 for the "fast" types and macros, which we recommend against using
38 in public interfaces due to compiler differences. */
39
40#if @HAVE_STDINT_H@
41# if defined __sgi && ! defined __c99
42 /* Bypass IRIX's <stdint.h> if in C89 mode, since it merely annoys users
43 with "This header file is to be used only for c99 mode compilations"
44 diagnostics. */
45# define __STDINT_H__
46# endif
47 /* Other systems may have an incomplete or buggy <stdint.h>.
48 Include it before <inttypes.h>, since any "#include <stdint.h>"
49 in <inttypes.h> would reinclude us, skipping our contents because
50 _GL_STDINT_H is defined.
51 The include_next requires a split double-inclusion guard. */
52# @INCLUDE_NEXT@ @NEXT_STDINT_H@
53#endif
54
55#if ! defined _GL_STDINT_H && ! defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H
56#define _GL_STDINT_H
57
58/* <sys/types.h> defines some of the stdint.h types as well, on glibc,
59 IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
60 AIX 5.2 <sys/types.h> isn't needed and causes troubles.
61 MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
62 relies on the system <stdint.h> definitions, so include
63 <sys/types.h> after @NEXT_STDINT_H@. */
64#if @HAVE_SYS_TYPES_H@ && ! defined _AIX
65# include <sys/types.h>
66#endif
67
68/* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
69#include <limits.h>
70
71#if @HAVE_INTTYPES_H@
72 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
73 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
74 <inttypes.h> also defines intptr_t and uintptr_t. */
75# include <inttypes.h>
76#elif @HAVE_SYS_INTTYPES_H@
77 /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
78 the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
79# include <sys/inttypes.h>
80#endif
81
82#if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
83 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
84 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
85 included by <sys/types.h>. */
86# include <sys/bitypes.h>
87#endif
88
89#if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
90
91/* Get WCHAR_MIN, WCHAR_MAX. */
92# if ! (defined WCHAR_MIN && defined WCHAR_MAX)
93# include <wchar.h>
94# endif
95
96#endif
97
98#undef _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
99
100/* Minimum and maximum values for a integer type under the usual assumption.
101 Return an unspecified value if BITS == 0, adding a check to pacify
102 picky compilers. */
103
104#define _STDINT_MIN(signed, bits, zero) \
105 ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
106
107#define _STDINT_MAX(signed, bits, zero) \
108 ((signed) \
109 ? ~ _STDINT_MIN (signed, bits, zero) \
110 : /* The expression for the unsigned case. The subtraction of (signed) \
111 is a nop in the unsigned case and avoids "signed integer overflow" \
112 warnings in the signed case. */ \
113 ((((zero) + 1) << ((bits) ? (bits) - 1 - (signed) : 0)) - 1) * 2 + 1)
114
115/* 7.18.1.1. Exact-width integer types */
116
117/* Here we assume a standard architecture where the hardware integer
118 types have 8, 16, 32, optionally 64 bits. */
119
120#undef int8_t
121#undef uint8_t
122#define int8_t signed char
123#define uint8_t unsigned char
124
125#undef int16_t
126#undef uint16_t
127#define int16_t short int
128#define uint16_t unsigned short int
129
130#undef int32_t
131#undef uint32_t
132#define int32_t int
133#define uint32_t unsigned int
134
135/* Do not undefine int64_t if gnulib is not being used with 64-bit
136 types, since otherwise it breaks platforms like Tandem/NSK. */
137#if LONG_MAX >> 31 >> 31 == 1
138# undef int64_t
139# define int64_t long int
140# define GL_INT64_T
141#elif defined _MSC_VER
142# undef int64_t
143# define int64_t __int64
144# define GL_INT64_T
145#elif @HAVE_LONG_LONG_INT@
146# undef int64_t
147# define int64_t long long int
148# define GL_INT64_T
149#endif
150
151#if ULONG_MAX >> 31 >> 31 >> 1 == 1
152# undef uint64_t
153# define uint64_t unsigned long int
154# define GL_UINT64_T
155#elif defined _MSC_VER
156# undef uint64_t
157# define uint64_t unsigned __int64
158# define GL_UINT64_T
159#elif @HAVE_UNSIGNED_LONG_LONG_INT@
160# undef uint64_t
161# define uint64_t unsigned long long int
162# define GL_UINT64_T
163#endif
164
165/* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
166#define _UINT8_T
167#define _UINT32_T
168#define _UINT64_T
169
170
171/* 7.18.1.2. Minimum-width integer types */
172
173/* Here we assume a standard architecture where the hardware integer
174 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
175 are the same as the corresponding N_t types. */
176
177#undef int_least8_t
178#undef uint_least8_t
179#undef int_least16_t
180#undef uint_least16_t
181#undef int_least32_t
182#undef uint_least32_t
183#undef int_least64_t
184#undef uint_least64_t
185#define int_least8_t int8_t
186#define uint_least8_t uint8_t
187#define int_least16_t int16_t
188#define uint_least16_t uint16_t
189#define int_least32_t int32_t
190#define uint_least32_t uint32_t
191#ifdef GL_INT64_T
192# define int_least64_t int64_t
193#endif
194#ifdef GL_UINT64_T
195# define uint_least64_t uint64_t
196#endif
197
198/* 7.18.1.3. Fastest minimum-width integer types */
199
200/* Note: Other <stdint.h> substitutes may define these types differently.
201 It is not recommended to use these types in public header files. */
202
203/* Here we assume a standard architecture where the hardware integer
204 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
205 are taken from the same list of types. Assume that 'long int'
206 is fast enough for all narrower integers. */
207
208#undef int_fast8_t
209#undef uint_fast8_t
210#undef int_fast16_t
211#undef uint_fast16_t
212#undef int_fast32_t
213#undef uint_fast32_t
214#undef int_fast64_t
215#undef uint_fast64_t
216#define int_fast8_t long int
217#define uint_fast8_t unsigned int_fast8_t
218#define int_fast16_t long int
219#define uint_fast16_t unsigned int_fast16_t
220#define int_fast32_t long int
221#define uint_fast32_t unsigned int_fast32_t
222#ifdef GL_INT64_T
223# define int_fast64_t int64_t
224#endif
225#ifdef GL_UINT64_T
226# define uint_fast64_t uint64_t
227#endif
228
229/* 7.18.1.4. Integer types capable of holding object pointers */
230
231#undef intptr_t
232#undef uintptr_t
233#define intptr_t long int
234#define uintptr_t unsigned long int
235
236/* 7.18.1.5. Greatest-width integer types */
237
238/* Note: These types are compiler dependent. It may be unwise to use them in
239 public header files. */
240
241#undef intmax_t
242#if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
243# define intmax_t long long int
244#elif defined GL_INT64_T
245# define intmax_t int64_t
246#else
247# define intmax_t long int
248#endif
249
250#undef uintmax_t
251#if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
252# define uintmax_t unsigned long long int
253#elif defined GL_UINT64_T
254# define uintmax_t uint64_t
255#else
256# define uintmax_t unsigned long int
257#endif
258
259/* Verify that intmax_t and uintmax_t have the same size. Too much code
260 breaks if this is not the case. If this check fails, the reason is likely
261 to be found in the autoconf macros. */
262typedef int _verify_intmax_size[2 * (sizeof (intmax_t) == sizeof (uintmax_t)) - 1];
263
264/* 7.18.2. Limits of specified-width integer types */
265
266#if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
267
268/* 7.18.2.1. Limits of exact-width integer types */
269
270/* Here we assume a standard architecture where the hardware integer
271 types have 8, 16, 32, optionally 64 bits. */
272
273#undef INT8_MIN
274#undef INT8_MAX
275#undef UINT8_MAX
276#define INT8_MIN (~ INT8_MAX)
277#define INT8_MAX 127
278#define UINT8_MAX 255
279
280#undef INT16_MIN
281#undef INT16_MAX
282#undef UINT16_MAX
283#define INT16_MIN (~ INT16_MAX)
284#define INT16_MAX 32767
285#define UINT16_MAX 65535
286
287#undef INT32_MIN
288#undef INT32_MAX
289#undef UINT32_MAX
290#define INT32_MIN (~ INT32_MAX)
291#define INT32_MAX 2147483647
292#define UINT32_MAX 4294967295U
293
294#undef INT64_MIN
295#undef INT64_MAX
296#ifdef GL_INT64_T
297/* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0
298 evaluates the latter incorrectly in preprocessor expressions. */
299# define INT64_MIN (- INTMAX_C (1) << 63)
300# define INT64_MAX INTMAX_C (9223372036854775807)
301#endif
302
303#undef UINT64_MAX
304#ifdef GL_UINT64_T
305# define UINT64_MAX UINTMAX_C (18446744073709551615)
306#endif
307
308/* 7.18.2.2. Limits of minimum-width integer types */
309
310/* Here we assume a standard architecture where the hardware integer
311 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
312 are the same as the corresponding N_t types. */
313
314#undef INT_LEAST8_MIN
315#undef INT_LEAST8_MAX
316#undef UINT_LEAST8_MAX
317#define INT_LEAST8_MIN INT8_MIN
318#define INT_LEAST8_MAX INT8_MAX
319#define UINT_LEAST8_MAX UINT8_MAX
320
321#undef INT_LEAST16_MIN
322#undef INT_LEAST16_MAX
323#undef UINT_LEAST16_MAX
324#define INT_LEAST16_MIN INT16_MIN
325#define INT_LEAST16_MAX INT16_MAX
326#define UINT_LEAST16_MAX UINT16_MAX
327
328#undef INT_LEAST32_MIN
329#undef INT_LEAST32_MAX
330#undef UINT_LEAST32_MAX
331#define INT_LEAST32_MIN INT32_MIN
332#define INT_LEAST32_MAX INT32_MAX
333#define UINT_LEAST32_MAX UINT32_MAX
334
335#undef INT_LEAST64_MIN
336#undef INT_LEAST64_MAX
337#ifdef GL_INT64_T
338# define INT_LEAST64_MIN INT64_MIN
339# define INT_LEAST64_MAX INT64_MAX
340#endif
341
342#undef UINT_LEAST64_MAX
343#ifdef GL_UINT64_T
344# define UINT_LEAST64_MAX UINT64_MAX
345#endif
346
347/* 7.18.2.3. Limits of fastest minimum-width integer types */
348
349/* Here we assume a standard architecture where the hardware integer
350 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
351 are taken from the same list of types. */
352
353#undef INT_FAST8_MIN
354#undef INT_FAST8_MAX
355#undef UINT_FAST8_MAX
356#define INT_FAST8_MIN LONG_MIN
357#define INT_FAST8_MAX LONG_MAX
358#define UINT_FAST8_MAX ULONG_MAX
359
360#undef INT_FAST16_MIN
361#undef INT_FAST16_MAX
362#undef UINT_FAST16_MAX
363#define INT_FAST16_MIN LONG_MIN
364#define INT_FAST16_MAX LONG_MAX
365#define UINT_FAST16_MAX ULONG_MAX
366
367#undef INT_FAST32_MIN
368#undef INT_FAST32_MAX
369#undef UINT_FAST32_MAX
370#define INT_FAST32_MIN LONG_MIN
371#define INT_FAST32_MAX LONG_MAX
372#define UINT_FAST32_MAX ULONG_MAX
373
374#undef INT_FAST64_MIN
375#undef INT_FAST64_MAX
376#ifdef GL_INT64_T
377# define INT_FAST64_MIN INT64_MIN
378# define INT_FAST64_MAX INT64_MAX
379#endif
380
381#undef UINT_FAST64_MAX
382#ifdef GL_UINT64_T
383# define UINT_FAST64_MAX UINT64_MAX
384#endif
385
386/* 7.18.2.4. Limits of integer types capable of holding object pointers */
387
388#undef INTPTR_MIN
389#undef INTPTR_MAX
390#undef UINTPTR_MAX
391#define INTPTR_MIN LONG_MIN
392#define INTPTR_MAX LONG_MAX
393#define UINTPTR_MAX ULONG_MAX
394
395/* 7.18.2.5. Limits of greatest-width integer types */
396
397#undef INTMAX_MIN
398#undef INTMAX_MAX
399#ifdef INT64_MAX
400# define INTMAX_MIN INT64_MIN
401# define INTMAX_MAX INT64_MAX
402#else
403# define INTMAX_MIN INT32_MIN
404# define INTMAX_MAX INT32_MAX
405#endif
406
407#undef UINTMAX_MAX
408#ifdef UINT64_MAX
409# define UINTMAX_MAX UINT64_MAX
410#else
411# define UINTMAX_MAX UINT32_MAX
412#endif
413
414/* 7.18.3. Limits of other integer types */
415
416/* ptrdiff_t limits */
417#undef PTRDIFF_MIN
418#undef PTRDIFF_MAX
419#define PTRDIFF_MIN \
420 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
421#define PTRDIFF_MAX \
422 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
423
424/* sig_atomic_t limits */
425#undef SIG_ATOMIC_MIN
426#undef SIG_ATOMIC_MAX
427#define SIG_ATOMIC_MIN \
428 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
429 0@SIG_ATOMIC_T_SUFFIX@)
430#define SIG_ATOMIC_MAX \
431 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
432 0@SIG_ATOMIC_T_SUFFIX@)
433
434
435/* size_t limit */
436#undef SIZE_MAX
437#define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
438
439/* wchar_t limits */
440#undef WCHAR_MIN
441#undef WCHAR_MAX
442#define WCHAR_MIN \
443 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
444#define WCHAR_MAX \
445 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
446
447/* wint_t limits */
448#undef WINT_MIN
449#undef WINT_MAX
450#define WINT_MIN \
451 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
452#define WINT_MAX \
453 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
454
455#endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
456
457/* 7.18.4. Macros for integer constants */
458
459#if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
460
461/* 7.18.4.1. Macros for minimum-width integer constants */
462/* According to ISO C 99 Technical Corrigendum 1 */
463
464/* Here we assume a standard architecture where the hardware integer
465 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
466
467#undef INT8_C
468#undef UINT8_C
469#define INT8_C(x) x
470#define UINT8_C(x) x
471
472#undef INT16_C
473#undef UINT16_C
474#define INT16_C(x) x
475#define UINT16_C(x) x
476
477#undef INT32_C
478#undef UINT32_C
479#define INT32_C(x) x
480#define UINT32_C(x) x ## U
481
482#undef INT64_C
483#undef UINT64_C
484#if LONG_MAX >> 31 >> 31 == 1
485# define INT64_C(x) x##L
486#elif defined _MSC_VER
487# define INT64_C(x) x##i64
488#elif @HAVE_LONG_LONG_INT@
489# define INT64_C(x) x##LL
490#endif
491#if ULONG_MAX >> 31 >> 31 >> 1 == 1
492# define UINT64_C(x) x##UL
493#elif defined _MSC_VER
494# define UINT64_C(x) x##ui64
495#elif @HAVE_UNSIGNED_LONG_LONG_INT@
496# define UINT64_C(x) x##ULL
497#endif
498
499/* 7.18.4.2. Macros for greatest-width integer constants */
500
501#undef INTMAX_C
502#if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
503# define INTMAX_C(x) x##LL
504#elif defined GL_INT64_T
505# define INTMAX_C(x) INT64_C(x)
506#else
507# define INTMAX_C(x) x##L
508#endif
509
510#undef UINTMAX_C
511#if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
512# define UINTMAX_C(x) x##ULL
513#elif defined GL_UINT64_T
514# define UINTMAX_C(x) UINT64_C(x)
515#else
516# define UINTMAX_C(x) x##UL
517#endif
518
519#endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
520
521#endif /* _GL_STDINT_H */
522#endif /* !defined _GL_STDINT_H && !defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H */