1 /* Copyright (C) 2001-2002, 2004-2006 Free Software Foundation, Inc.
2 Written by Paul Eggert, Bruno Haible, Sam Steingold, Peter Burwood.
3 This file is part of gnulib.
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 2, or (at your option)
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.
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. */
23 * ISO C 99 <stdint.h> for platforms that lack it.
24 * <http://www.opengroup.org/susv3xbd/stdint.h.html>
27 /* Get those types that are already defined in other system include
28 files, so that we can "#define int8_t signed char" below without
29 worrying about a later system include file containing a "typedef
30 signed char int8_t;" that will get messed up by our macro. Our
31 macros should all be consistent with the system versions, except
32 for the "fast" types and macros, which we recommend against using
33 in public interfaces due to compiler differences. */
36 # if defined __sgi && ! defined __c99
37 /* Bypass IRIX's <stdint.h> if in C89 mode, since it merely annoys users
38 with "This header file is to be used only for c99 mode compilations"
42 /* Other systems may have an incomplete or buggy <stdint.h>.
43 Include it before <inttypes.h>, since any "#include <stdint.h>"
44 in <inttypes.h> would reinclude us, skipping our contents because
45 _GL_STDINT_H is defined. */
46 # include @ABSOLUTE_STDINT_H@
49 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
50 IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
51 AIX 5.2 <sys/types.h> isn't needed and causes troubles.
52 MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
53 relies on the system <stdint.h> definitions, so include
54 <sys/types.h> after @ABSOLUTE_STDINT_H@. */
55 #if @HAVE_SYS_TYPES_H@ && ! defined _AIX
56 # include <sys/types.h>
59 /* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
63 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
64 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
65 <inttypes.h> also defines intptr_t and uintptr_t. */
66 # define _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
67 # include <inttypes.h>
68 # undef _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
69 #elif @HAVE_SYS_INTTYPES_H@
70 /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
71 the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
72 # include <sys/inttypes.h>
75 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
76 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
77 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
78 included by <sys/types.h>. */
79 # include <sys/bitypes.h>
82 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
84 /* Get WCHAR_MIN, WCHAR_MAX. */
85 # if @HAVE_WCHAR_H@ && ! (defined WCHAR_MIN && defined WCHAR_MAX)
86 /* BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
95 /* Minimum and maximum values for a integer type under the usual assumption.
96 Return an unspecified value if BITS == 0, adding a check to pacify
99 #define _STDINT_MIN(signed, bits, zero) \
100 ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
102 #define _STDINT_MAX(signed, bits, zero) \
104 ? ~ _STDINT_MIN (signed, bits, zero) \
105 : ((((zero) + 1) << ((bits) ? (bits) - 1 : 0)) - 1) * 2 + 1)
107 /* 7.18.1.1. Exact-width integer types */
109 /* Here we assume a standard architecture where the hardware integer
110 types have 8, 16, 32, optionally 64 bits. */
114 #define int8_t signed char
115 #define uint8_t unsigned char
119 #define int16_t short int
120 #define uint16_t unsigned short int
125 #define uint32_t unsigned int
128 #if LONG_MAX >> 31 >> 31 == 1
129 # define int64_t long int
130 #elif defined _MSC_VER
131 # define int64_t __int64
132 #elif @HAVE_LONG_LONG_INT@
133 # define int64_t long long int
137 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
138 # define uint64_t unsigned long int
139 #elif defined _MSC_VER
140 # define uint64_t unsigned __int64
141 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
142 # define uint64_t unsigned long long int
145 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
151 /* 7.18.1.2. Minimum-width integer types */
153 /* Here we assume a standard architecture where the hardware integer
154 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
155 are the same as the corresponding N_t types. */
160 #undef uint_least16_t
162 #undef uint_least32_t
164 #undef uint_least64_t
165 #define int_least8_t int8_t
166 #define uint_least8_t uint8_t
167 #define int_least16_t int16_t
168 #define uint_least16_t uint16_t
169 #define int_least32_t int32_t
170 #define uint_least32_t uint32_t
172 # define int_least64_t int64_t
175 # define uint_least64_t uint64_t
178 /* 7.18.1.3. Fastest minimum-width integer types */
180 /* Note: Other <stdint.h> substitutes may define these types differently.
181 It is not recommended to use these types in public header files. */
183 /* Here we assume a standard architecture where the hardware integer
184 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
185 are taken from the same list of types. Assume that 'long int'
186 is fast enough for all narrower integers. */
196 #define int_fast8_t long int
197 #define uint_fast8_t unsigned int_fast8_t
198 #define int_fast16_t long int
199 #define uint_fast16_t unsigned int_fast16_t
200 #define int_fast32_t long int
201 #define uint_fast32_t unsigned int_fast32_t
203 # define int_fast64_t int64_t
206 # define uint_fast64_t uint64_t
209 /* 7.18.1.4. Integer types capable of holding object pointers */
213 #define intptr_t long int
214 #define uintptr_t unsigned long int
216 /* 7.18.1.5. Greatest-width integer types */
218 /* Note: These types are compiler dependent. It may be unwise to use them in
219 public header files. */
222 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
223 # define intmax_t long long int
224 #elif defined int64_t
225 # define intmax_t int64_t
227 # define intmax_t long int
231 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
232 # define uintmax_t unsigned long long int
233 #elif defined uint64_t
234 # define uintmax_t uint64_t
236 # define uintmax_t unsigned long int
239 /* 7.18.2. Limits of specified-width integer types */
241 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
243 /* 7.18.2.1. Limits of exact-width integer types */
245 /* Here we assume a standard architecture where the hardware integer
246 types have 8, 16, 32, optionally 64 bits. */
251 #define INT8_MIN (~ INT8_MAX)
253 #define UINT8_MAX 255
258 #define INT16_MIN (~ INT16_MAX)
259 #define INT16_MAX 32767
260 #define UINT16_MAX 65535
265 #define INT32_MIN (~ INT32_MAX)
266 #define INT32_MAX 2147483647
267 #define UINT32_MAX 4294967295U
272 # define INT64_MIN (~ INT64_MAX)
273 # define INT64_MAX INTMAX_C (9223372036854775807)
278 # define UINT64_MAX UINTMAX_C (18446744073709551615)
281 /* 7.18.2.2. Limits of minimum-width integer types */
283 /* Here we assume a standard architecture where the hardware integer
284 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
285 are the same as the corresponding N_t types. */
287 #undef INT_LEAST8_MIN
288 #undef INT_LEAST8_MAX
289 #undef UINT_LEAST8_MAX
290 #define INT_LEAST8_MIN INT8_MIN
291 #define INT_LEAST8_MAX INT8_MAX
292 #define UINT_LEAST8_MAX UINT8_MAX
294 #undef INT_LEAST16_MIN
295 #undef INT_LEAST16_MAX
296 #undef UINT_LEAST16_MAX
297 #define INT_LEAST16_MIN INT16_MIN
298 #define INT_LEAST16_MAX INT16_MAX
299 #define UINT_LEAST16_MAX UINT16_MAX
301 #undef INT_LEAST32_MIN
302 #undef INT_LEAST32_MAX
303 #undef UINT_LEAST32_MAX
304 #define INT_LEAST32_MIN INT32_MIN
305 #define INT_LEAST32_MAX INT32_MAX
306 #define UINT_LEAST32_MAX UINT32_MAX
308 #undef INT_LEAST64_MIN
309 #undef INT_LEAST64_MAX
311 # define INT_LEAST64_MIN INT64_MIN
312 # define INT_LEAST64_MAX INT64_MAX
315 #undef UINT_LEAST64_MAX
317 # define UINT_LEAST64_MAX UINT64_MAX
320 /* 7.18.2.3. Limits of fastest minimum-width integer types */
322 /* Here we assume a standard architecture where the hardware integer
323 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
324 are taken from the same list of types. */
328 #undef UINT_FAST8_MAX
329 #define INT_FAST8_MIN LONG_MIN
330 #define INT_FAST8_MAX LONG_MAX
331 #define UINT_FAST8_MAX ULONG_MAX
333 #undef INT_FAST16_MIN
334 #undef INT_FAST16_MAX
335 #undef UINT_FAST16_MAX
336 #define INT_FAST16_MIN LONG_MIN
337 #define INT_FAST16_MAX LONG_MAX
338 #define UINT_FAST16_MAX ULONG_MAX
340 #undef INT_FAST32_MIN
341 #undef INT_FAST32_MAX
342 #undef UINT_FAST32_MAX
343 #define INT_FAST32_MIN LONG_MIN
344 #define INT_FAST32_MAX LONG_MAX
345 #define UINT_FAST32_MAX ULONG_MAX
347 #undef INT_FAST64_MIN
348 #undef INT_FAST64_MAX
350 # define INT_FAST64_MIN INT64_MIN
351 # define INT_FAST64_MAX INT64_MAX
354 #undef UINT_FAST64_MAX
356 # define UINT_FAST64_MAX UINT64_MAX
359 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
364 #define INTPTR_MIN LONG_MIN
365 #define INTPTR_MAX LONG_MAX
366 #define UINTPTR_MAX ULONG_MAX
368 /* 7.18.2.5. Limits of greatest-width integer types */
372 #define INTMAX_MIN (~ INTMAX_MAX)
374 # define INTMAX_MAX INT64_MAX
376 # define INTMAX_MAX INT32_MAX
381 # define UINTMAX_MAX UINT64_MAX
383 # define UINTMAX_MAX UINT32_MAX
386 /* 7.18.3. Limits of other integer types */
388 /* ptrdiff_t limits */
391 #define PTRDIFF_MIN \
392 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
393 #define PTRDIFF_MAX \
394 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
396 /* sig_atomic_t limits */
397 #undef SIG_ATOMIC_MIN
398 #undef SIG_ATOMIC_MAX
399 #define SIG_ATOMIC_MIN \
400 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
401 0@SIG_ATOMIC_T_SUFFIX@)
402 #define SIG_ATOMIC_MAX \
403 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
404 0@SIG_ATOMIC_T_SUFFIX@)
409 #define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
415 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
417 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
423 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
425 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
427 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
429 /* 7.18.4. Macros for integer constants */
431 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
433 /* 7.18.4.1. Macros for minimum-width integer constants */
434 /* According to ISO C 99 Technical Corrigendum 1 */
436 /* Here we assume a standard architecture where the hardware integer
437 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
447 #define UINT16_C(x) x
452 #define UINT32_C(x) x ## U
456 #if LONG_MAX >> 31 >> 31 == 1
457 # define INT64_C(x) x##L
458 #elif defined _MSC_VER
459 # define INT64_C(x) x##i64
460 #elif @HAVE_LONG_LONG_INT@
461 # define INT64_C(x) x##LL
463 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
464 # define UINT64_C(x) x##UL
465 #elif defined _MSC_VER
466 # define UINT64_C(x) x##ui64
467 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
468 # define UINT64_C(x) x##ULL
471 /* 7.18.4.2. Macros for greatest-width integer constants */
474 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
475 # define INTMAX_C(x) x##LL
476 #elif defined int64_t
477 # define INTMAX_C(x) INT64_C(x)
479 # define INTMAX_C(x) x##L
483 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
484 # define UINTMAX_C(x) x##ULL
485 #elif defined uint64_t
486 # define UINTMAX_C(x) UINT64_C(x)
488 # define UINTMAX_C(x) x##UL
491 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
493 #endif /* _GL_STDINT_H */