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.
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 ! (defined WCHAR_MIN && defined WCHAR_MAX)
91 /* Minimum and maximum values for a integer type under the usual assumption.
92 Return an unspecified value if BITS == 0, adding a check to pacify
95 #define _STDINT_MIN(signed, bits, zero) \
96 ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
98 #define _STDINT_MAX(signed, bits, zero) \
100 ? ~ _STDINT_MIN (signed, bits, zero) \
101 : ((((zero) + 1) << ((bits) ? (bits) - 1 : 0)) - 1) * 2 + 1)
103 /* 7.18.1.1. Exact-width integer types */
105 /* Here we assume a standard architecture where the hardware integer
106 types have 8, 16, 32, optionally 64 bits. */
110 #define int8_t signed char
111 #define uint8_t unsigned char
115 #define int16_t short int
116 #define uint16_t unsigned short int
121 #define uint32_t unsigned int
124 #if LONG_MAX >> 31 >> 31 == 1
125 # define int64_t long int
126 #elif defined _MSC_VER
127 # define int64_t __int64
128 #elif @HAVE_LONG_LONG_INT@
129 # define int64_t long long int
133 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
134 # define uint64_t unsigned long int
135 #elif defined _MSC_VER
136 # define uint64_t unsigned __int64
137 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
138 # define uint64_t unsigned long long int
141 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
147 /* 7.18.1.2. Minimum-width integer types */
149 /* Here we assume a standard architecture where the hardware integer
150 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
151 are the same as the corresponding N_t types. */
156 #undef uint_least16_t
158 #undef uint_least32_t
160 #undef uint_least64_t
161 #define int_least8_t int8_t
162 #define uint_least8_t uint8_t
163 #define int_least16_t int16_t
164 #define uint_least16_t uint16_t
165 #define int_least32_t int32_t
166 #define uint_least32_t uint32_t
168 # define int_least64_t int64_t
171 # define uint_least64_t uint64_t
174 /* 7.18.1.3. Fastest minimum-width integer types */
176 /* Note: Other <stdint.h> substitutes may define these types differently.
177 It is not recommended to use these types in public header files. */
179 /* Here we assume a standard architecture where the hardware integer
180 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
181 are taken from the same list of types. Assume that 'long int'
182 is fast enough for all narrower integers. */
192 #define int_fast8_t long int
193 #define uint_fast8_t unsigned int_fast8_t
194 #define int_fast16_t long int
195 #define uint_fast16_t unsigned int_fast16_t
196 #define int_fast32_t long int
197 #define uint_fast32_t unsigned int_fast32_t
199 # define int_fast64_t int64_t
202 # define uint_fast64_t uint64_t
205 /* 7.18.1.4. Integer types capable of holding object pointers */
209 #define intptr_t long int
210 #define uintptr_t unsigned long int
212 /* 7.18.1.5. Greatest-width integer types */
214 /* Note: These types are compiler dependent. It may be unwise to use them in
215 public header files. */
218 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
219 # define intmax_t long long int
220 #elif defined int64_t
221 # define intmax_t int64_t
223 # define intmax_t long int
227 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
228 # define uintmax_t unsigned long long int
229 #elif defined uint64_t
230 # define uintmax_t uint64_t
232 # define uintmax_t unsigned long int
235 /* 7.18.2. Limits of specified-width integer types */
237 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
239 /* 7.18.2.1. Limits of exact-width integer types */
241 /* Here we assume a standard architecture where the hardware integer
242 types have 8, 16, 32, optionally 64 bits. */
247 #define INT8_MIN (~ INT8_MAX)
249 #define UINT8_MAX 255
254 #define INT16_MIN (~ INT16_MAX)
255 #define INT16_MAX 32767
256 #define UINT16_MAX 65535
261 #define INT32_MIN (~ INT32_MAX)
262 #define INT32_MAX 2147483647
263 #define UINT32_MAX 4294967295U
268 # define INT64_MIN (~ INT64_MAX)
269 # define INT64_MAX INTMAX_C (9223372036854775807)
274 # define UINT64_MAX UINTMAX_C (18446744073709551615)
277 /* 7.18.2.2. Limits of minimum-width integer types */
279 /* Here we assume a standard architecture where the hardware integer
280 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
281 are the same as the corresponding N_t types. */
283 #undef INT_LEAST8_MIN
284 #undef INT_LEAST8_MAX
285 #undef UINT_LEAST8_MAX
286 #define INT_LEAST8_MIN INT8_MIN
287 #define INT_LEAST8_MAX INT8_MAX
288 #define UINT_LEAST8_MAX UINT8_MAX
290 #undef INT_LEAST16_MIN
291 #undef INT_LEAST16_MAX
292 #undef UINT_LEAST16_MAX
293 #define INT_LEAST16_MIN INT16_MIN
294 #define INT_LEAST16_MAX INT16_MAX
295 #define UINT_LEAST16_MAX UINT16_MAX
297 #undef INT_LEAST32_MIN
298 #undef INT_LEAST32_MAX
299 #undef UINT_LEAST32_MAX
300 #define INT_LEAST32_MIN INT32_MIN
301 #define INT_LEAST32_MAX INT32_MAX
302 #define UINT_LEAST32_MAX UINT32_MAX
304 #undef INT_LEAST64_MIN
305 #undef INT_LEAST64_MAX
307 # define INT_LEAST64_MIN INT64_MIN
308 # define INT_LEAST64_MAX INT64_MAX
311 #undef UINT_LEAST64_MAX
313 # define UINT_LEAST64_MAX UINT64_MAX
316 /* 7.18.2.3. Limits of fastest minimum-width integer types */
318 /* Here we assume a standard architecture where the hardware integer
319 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
320 are taken from the same list of types. */
324 #undef UINT_FAST8_MAX
325 #define INT_FAST8_MIN LONG_MIN
326 #define INT_FAST8_MAX LONG_MAX
327 #define UINT_FAST8_MAX ULONG_MAX
329 #undef INT_FAST16_MIN
330 #undef INT_FAST16_MAX
331 #undef UINT_FAST16_MAX
332 #define INT_FAST16_MIN LONG_MIN
333 #define INT_FAST16_MAX LONG_MAX
334 #define UINT_FAST16_MAX ULONG_MAX
336 #undef INT_FAST32_MIN
337 #undef INT_FAST32_MAX
338 #undef UINT_FAST32_MAX
339 #define INT_FAST32_MIN LONG_MIN
340 #define INT_FAST32_MAX LONG_MAX
341 #define UINT_FAST32_MAX ULONG_MAX
343 #undef INT_FAST64_MIN
344 #undef INT_FAST64_MAX
346 # define INT_FAST64_MIN INT64_MIN
347 # define INT_FAST64_MAX INT64_MAX
350 #undef UINT_FAST64_MAX
352 # define UINT_FAST64_MAX UINT64_MAX
355 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
360 #define INTPTR_MIN LONG_MIN
361 #define INTPTR_MAX LONG_MAX
362 #define UINTPTR_MAX ULONG_MAX
364 /* 7.18.2.5. Limits of greatest-width integer types */
368 #define INTMAX_MIN (~ INTMAX_MAX)
370 # define INTMAX_MAX INT64_MAX
372 # define INTMAX_MAX INT32_MAX
377 # define UINTMAX_MAX UINT64_MAX
379 # define UINTMAX_MAX UINT32_MAX
382 /* 7.18.3. Limits of other integer types */
384 /* ptrdiff_t limits */
387 #define PTRDIFF_MIN \
388 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
389 #define PTRDIFF_MAX \
390 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
392 /* sig_atomic_t limits */
393 #undef SIG_ATOMIC_MIN
394 #undef SIG_ATOMIC_MAX
395 #define SIG_ATOMIC_MIN \
396 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
397 0@SIG_ATOMIC_T_SUFFIX@)
398 #define SIG_ATOMIC_MAX \
399 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
400 0@SIG_ATOMIC_T_SUFFIX@)
405 #define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
411 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
413 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
419 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
421 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
423 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
425 /* 7.18.4. Macros for integer constants */
427 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
429 /* 7.18.4.1. Macros for minimum-width integer constants */
430 /* According to ISO C 99 Technical Corrigendum 1 */
432 /* Here we assume a standard architecture where the hardware integer
433 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
443 #define UINT16_C(x) x
448 #define UINT32_C(x) x ## U
452 #if LONG_MAX >> 31 >> 31 == 1
453 # define INT64_C(x) x##L
454 #elif defined _MSC_VER
455 # define INT64_C(x) x##i64
456 #elif @HAVE_LONG_LONG_INT@
457 # define INT64_C(x) x##LL
459 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
460 # define UINT64_C(x) x##UL
461 #elif defined _MSC_VER
462 # define UINT64_C(x) x##ui64
463 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
464 # define UINT64_C(x) x##ULL
467 /* 7.18.4.2. Macros for greatest-width integer constants */
470 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
471 # define INTMAX_C(x) x##LL
472 #elif defined int64_t
473 # define INTMAX_C(x) INT64_C(x)
475 # define INTMAX_C(x) x##L
479 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
480 # define UINTMAX_C(x) x##ULL
481 #elif defined uint64_t
482 # define UINTMAX_C(x) UINT64_C(x)
484 # define UINTMAX_C(x) x##UL
487 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
489 #endif /* _GL_STDINT_H */