1 /* Copyright (C) 2001-2002, 2004-2008 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. */
20 * ISO C 99 <stdint.h> for platforms that lack it.
21 * <http://www.opengroup.org/susv3xbd/stdint.h.html>
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
30 #define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
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. */
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"
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. */
53 @PRAGMA_SYSTEM_HEADER@
55 # @INCLUDE_NEXT@ @NEXT_STDINT_H@
58 #if ! defined _GL_STDINT_H && ! defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H
61 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
62 IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
63 AIX 5.2 <sys/types.h> isn't needed and causes troubles.
64 MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
65 relies on the system <stdint.h> definitions, so include
66 <sys/types.h> after @NEXT_STDINT_H@. */
67 #if @HAVE_SYS_TYPES_H@ && ! defined _AIX
68 # include <sys/types.h>
71 /* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
75 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
76 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
77 <inttypes.h> also defines intptr_t and uintptr_t. */
78 # include <inttypes.h>
79 #elif @HAVE_SYS_INTTYPES_H@
80 /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
81 the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
82 # include <sys/inttypes.h>
85 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
86 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
87 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
88 included by <sys/types.h>. */
89 # include <sys/bitypes.h>
92 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
94 /* Get WCHAR_MIN, WCHAR_MAX. */
95 # if ! (defined WCHAR_MIN && defined WCHAR_MAX)
101 #undef _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
103 /* Minimum and maximum values for a integer type under the usual assumption.
104 Return an unspecified value if BITS == 0, adding a check to pacify
107 #define _STDINT_MIN(signed, bits, zero) \
108 ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
110 #define _STDINT_MAX(signed, bits, zero) \
112 ? ~ _STDINT_MIN (signed, bits, zero) \
113 : /* The expression for the unsigned case. The subtraction of (signed) \
114 is a nop in the unsigned case and avoids "signed integer overflow" \
115 warnings in the signed case. */ \
116 ((((zero) + 1) << ((bits) ? (bits) - 1 - (signed) : 0)) - 1) * 2 + 1)
118 /* 7.18.1.1. Exact-width integer types */
120 /* Here we assume a standard architecture where the hardware integer
121 types have 8, 16, 32, optionally 64 bits. */
125 #define int8_t signed char
126 #define uint8_t unsigned char
130 #define int16_t short int
131 #define uint16_t unsigned short int
136 #define uint32_t unsigned int
138 /* Do not undefine int64_t if gnulib is not being used with 64-bit
139 types, since otherwise it breaks platforms like Tandem/NSK. */
140 #if LONG_MAX >> 31 >> 31 == 1
142 # define int64_t long int
144 #elif defined _MSC_VER
146 # define int64_t __int64
148 #elif @HAVE_LONG_LONG_INT@
150 # define int64_t long long int
154 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
156 # define uint64_t unsigned long int
158 #elif defined _MSC_VER
160 # define uint64_t unsigned __int64
162 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
164 # define uint64_t unsigned long long int
168 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
174 /* 7.18.1.2. Minimum-width integer types */
176 /* Here we assume a standard architecture where the hardware integer
177 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
178 are the same as the corresponding N_t types. */
183 #undef uint_least16_t
185 #undef uint_least32_t
187 #undef uint_least64_t
188 #define int_least8_t int8_t
189 #define uint_least8_t uint8_t
190 #define int_least16_t int16_t
191 #define uint_least16_t uint16_t
192 #define int_least32_t int32_t
193 #define uint_least32_t uint32_t
195 # define int_least64_t int64_t
198 # define uint_least64_t uint64_t
201 /* 7.18.1.3. Fastest minimum-width integer types */
203 /* Note: Other <stdint.h> substitutes may define these types differently.
204 It is not recommended to use these types in public header files. */
206 /* Here we assume a standard architecture where the hardware integer
207 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
208 are taken from the same list of types. Assume that 'long int'
209 is fast enough for all narrower integers. */
219 #define int_fast8_t long int
220 #define uint_fast8_t unsigned int_fast8_t
221 #define int_fast16_t long int
222 #define uint_fast16_t unsigned int_fast16_t
223 #define int_fast32_t long int
224 #define uint_fast32_t unsigned int_fast32_t
226 # define int_fast64_t int64_t
229 # define uint_fast64_t uint64_t
232 /* 7.18.1.4. Integer types capable of holding object pointers */
236 #define intptr_t long int
237 #define uintptr_t unsigned long int
239 /* 7.18.1.5. Greatest-width integer types */
241 /* Note: These types are compiler dependent. It may be unwise to use them in
242 public header files. */
245 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
246 # define intmax_t long long int
247 #elif defined GL_INT64_T
248 # define intmax_t int64_t
250 # define intmax_t long int
254 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
255 # define uintmax_t unsigned long long int
256 #elif defined GL_UINT64_T
257 # define uintmax_t uint64_t
259 # define uintmax_t unsigned long int
262 /* Verify that intmax_t and uintmax_t have the same size. Too much code
263 breaks if this is not the case. If this check fails, the reason is likely
264 to be found in the autoconf macros. */
265 typedef int _verify_intmax_size[2 * (sizeof (intmax_t) == sizeof (uintmax_t)) - 1];
267 /* 7.18.2. Limits of specified-width integer types */
269 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
271 /* 7.18.2.1. Limits of exact-width integer types */
273 /* Here we assume a standard architecture where the hardware integer
274 types have 8, 16, 32, optionally 64 bits. */
279 #define INT8_MIN (~ INT8_MAX)
281 #define UINT8_MAX 255
286 #define INT16_MIN (~ INT16_MAX)
287 #define INT16_MAX 32767
288 #define UINT16_MAX 65535
293 #define INT32_MIN (~ INT32_MAX)
294 #define INT32_MAX 2147483647
295 #define UINT32_MAX 4294967295U
300 /* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0
301 evaluates the latter incorrectly in preprocessor expressions. */
302 # define INT64_MIN (- INTMAX_C (1) << 63)
303 # define INT64_MAX INTMAX_C (9223372036854775807)
308 # define UINT64_MAX UINTMAX_C (18446744073709551615)
311 /* 7.18.2.2. Limits of minimum-width integer types */
313 /* Here we assume a standard architecture where the hardware integer
314 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
315 are the same as the corresponding N_t types. */
317 #undef INT_LEAST8_MIN
318 #undef INT_LEAST8_MAX
319 #undef UINT_LEAST8_MAX
320 #define INT_LEAST8_MIN INT8_MIN
321 #define INT_LEAST8_MAX INT8_MAX
322 #define UINT_LEAST8_MAX UINT8_MAX
324 #undef INT_LEAST16_MIN
325 #undef INT_LEAST16_MAX
326 #undef UINT_LEAST16_MAX
327 #define INT_LEAST16_MIN INT16_MIN
328 #define INT_LEAST16_MAX INT16_MAX
329 #define UINT_LEAST16_MAX UINT16_MAX
331 #undef INT_LEAST32_MIN
332 #undef INT_LEAST32_MAX
333 #undef UINT_LEAST32_MAX
334 #define INT_LEAST32_MIN INT32_MIN
335 #define INT_LEAST32_MAX INT32_MAX
336 #define UINT_LEAST32_MAX UINT32_MAX
338 #undef INT_LEAST64_MIN
339 #undef INT_LEAST64_MAX
341 # define INT_LEAST64_MIN INT64_MIN
342 # define INT_LEAST64_MAX INT64_MAX
345 #undef UINT_LEAST64_MAX
347 # define UINT_LEAST64_MAX UINT64_MAX
350 /* 7.18.2.3. Limits of fastest minimum-width integer types */
352 /* Here we assume a standard architecture where the hardware integer
353 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
354 are taken from the same list of types. */
358 #undef UINT_FAST8_MAX
359 #define INT_FAST8_MIN LONG_MIN
360 #define INT_FAST8_MAX LONG_MAX
361 #define UINT_FAST8_MAX ULONG_MAX
363 #undef INT_FAST16_MIN
364 #undef INT_FAST16_MAX
365 #undef UINT_FAST16_MAX
366 #define INT_FAST16_MIN LONG_MIN
367 #define INT_FAST16_MAX LONG_MAX
368 #define UINT_FAST16_MAX ULONG_MAX
370 #undef INT_FAST32_MIN
371 #undef INT_FAST32_MAX
372 #undef UINT_FAST32_MAX
373 #define INT_FAST32_MIN LONG_MIN
374 #define INT_FAST32_MAX LONG_MAX
375 #define UINT_FAST32_MAX ULONG_MAX
377 #undef INT_FAST64_MIN
378 #undef INT_FAST64_MAX
380 # define INT_FAST64_MIN INT64_MIN
381 # define INT_FAST64_MAX INT64_MAX
384 #undef UINT_FAST64_MAX
386 # define UINT_FAST64_MAX UINT64_MAX
389 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
394 #define INTPTR_MIN LONG_MIN
395 #define INTPTR_MAX LONG_MAX
396 #define UINTPTR_MAX ULONG_MAX
398 /* 7.18.2.5. Limits of greatest-width integer types */
403 # define INTMAX_MIN INT64_MIN
404 # define INTMAX_MAX INT64_MAX
406 # define INTMAX_MIN INT32_MIN
407 # define INTMAX_MAX INT32_MAX
412 # define UINTMAX_MAX UINT64_MAX
414 # define UINTMAX_MAX UINT32_MAX
417 /* 7.18.3. Limits of other integer types */
419 /* ptrdiff_t limits */
422 #define PTRDIFF_MIN \
423 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
424 #define PTRDIFF_MAX \
425 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
427 /* sig_atomic_t limits */
428 #undef SIG_ATOMIC_MIN
429 #undef SIG_ATOMIC_MAX
430 #define SIG_ATOMIC_MIN \
431 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
432 0@SIG_ATOMIC_T_SUFFIX@)
433 #define SIG_ATOMIC_MAX \
434 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
435 0@SIG_ATOMIC_T_SUFFIX@)
440 #define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
446 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
448 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
454 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
456 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
458 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
460 /* 7.18.4. Macros for integer constants */
462 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
464 /* 7.18.4.1. Macros for minimum-width integer constants */
465 /* According to ISO C 99 Technical Corrigendum 1 */
467 /* Here we assume a standard architecture where the hardware integer
468 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
478 #define UINT16_C(x) x
483 #define UINT32_C(x) x ## U
487 #if LONG_MAX >> 31 >> 31 == 1
488 # define INT64_C(x) x##L
489 #elif defined _MSC_VER
490 # define INT64_C(x) x##i64
491 #elif @HAVE_LONG_LONG_INT@
492 # define INT64_C(x) x##LL
494 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
495 # define UINT64_C(x) x##UL
496 #elif defined _MSC_VER
497 # define UINT64_C(x) x##ui64
498 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
499 # define UINT64_C(x) x##ULL
502 /* 7.18.4.2. Macros for greatest-width integer constants */
505 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
506 # define INTMAX_C(x) x##LL
507 #elif defined GL_INT64_T
508 # define INTMAX_C(x) INT64_C(x)
510 # define INTMAX_C(x) x##L
514 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
515 # define UINTMAX_C(x) x##ULL
516 #elif defined GL_UINT64_T
517 # define UINTMAX_C(x) UINT64_C(x)
519 # define UINTMAX_C(x) x##UL
522 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
524 #endif /* _GL_STDINT_H */
525 #endif /* !defined _GL_STDINT_H && !defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H */