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 # if @HAVE_INCLUDE_NEXT@
47 # include_next <stdint.h>
49 # include @ABSOLUTE_STDINT_H@
53 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
54 IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
55 AIX 5.2 <sys/types.h> isn't needed and causes troubles.
56 MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
57 relies on the system <stdint.h> definitions, so include
58 <sys/types.h> after @ABSOLUTE_STDINT_H@. */
59 #if @HAVE_SYS_TYPES_H@ && ! defined _AIX
60 # include <sys/types.h>
63 /* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
67 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
68 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
69 <inttypes.h> also defines intptr_t and uintptr_t. */
70 # define _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
71 # include <inttypes.h>
72 # undef _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
73 #elif @HAVE_SYS_INTTYPES_H@
74 /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
75 the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
76 # include <sys/inttypes.h>
79 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
80 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
81 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
82 included by <sys/types.h>. */
83 # include <sys/bitypes.h>
86 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
88 /* Get WCHAR_MIN, WCHAR_MAX. */
89 # if ! (defined WCHAR_MIN && defined WCHAR_MAX)
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
127 /* Do not undefine int64_t if gnulib is not being used with 64-bit
128 types, since otherwise it breaks platforms like Tandem/NSK. */
129 #if LONG_MAX >> 31 >> 31 == 1
131 # define int64_t long int
133 #elif defined _MSC_VER
135 # define int64_t __int64
137 #elif @HAVE_LONG_LONG_INT@
139 # define int64_t long long int
143 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
145 # define uint64_t unsigned long int
147 #elif defined _MSC_VER
149 # define uint64_t unsigned __int64
151 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
153 # define uint64_t unsigned long long int
157 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
163 /* 7.18.1.2. Minimum-width integer types */
165 /* Here we assume a standard architecture where the hardware integer
166 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
167 are the same as the corresponding N_t types. */
172 #undef uint_least16_t
174 #undef uint_least32_t
176 #undef uint_least64_t
177 #define int_least8_t int8_t
178 #define uint_least8_t uint8_t
179 #define int_least16_t int16_t
180 #define uint_least16_t uint16_t
181 #define int_least32_t int32_t
182 #define uint_least32_t uint32_t
184 # define int_least64_t int64_t
187 # define uint_least64_t uint64_t
190 /* 7.18.1.3. Fastest minimum-width integer types */
192 /* Note: Other <stdint.h> substitutes may define these types differently.
193 It is not recommended to use these types in public header files. */
195 /* Here we assume a standard architecture where the hardware integer
196 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
197 are taken from the same list of types. Assume that 'long int'
198 is fast enough for all narrower integers. */
208 #define int_fast8_t long int
209 #define uint_fast8_t unsigned int_fast8_t
210 #define int_fast16_t long int
211 #define uint_fast16_t unsigned int_fast16_t
212 #define int_fast32_t long int
213 #define uint_fast32_t unsigned int_fast32_t
215 # define int_fast64_t int64_t
218 # define uint_fast64_t uint64_t
221 /* 7.18.1.4. Integer types capable of holding object pointers */
225 #define intptr_t long int
226 #define uintptr_t unsigned long int
228 /* 7.18.1.5. Greatest-width integer types */
230 /* Note: These types are compiler dependent. It may be unwise to use them in
231 public header files. */
234 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
235 # define intmax_t long long int
236 #elif defined GL_INT64_T
237 # define intmax_t int64_t
239 # define intmax_t long int
243 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
244 # define uintmax_t unsigned long long int
245 #elif defined GL_UINT64_T
246 # define uintmax_t uint64_t
248 # define uintmax_t unsigned long int
251 /* 7.18.2. Limits of specified-width integer types */
253 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
255 /* 7.18.2.1. Limits of exact-width integer types */
257 /* Here we assume a standard architecture where the hardware integer
258 types have 8, 16, 32, optionally 64 bits. */
263 #define INT8_MIN (~ INT8_MAX)
265 #define UINT8_MAX 255
270 #define INT16_MIN (~ INT16_MAX)
271 #define INT16_MAX 32767
272 #define UINT16_MAX 65535
277 #define INT32_MIN (~ INT32_MAX)
278 #define INT32_MAX 2147483647
279 #define UINT32_MAX 4294967295U
284 /* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0
285 evaluates the latter incorrectly in preprocessor expressions. */
286 # define INT64_MIN (- INTMAX_C (1) << 63)
287 # define INT64_MAX INTMAX_C (9223372036854775807)
292 # define UINT64_MAX UINTMAX_C (18446744073709551615)
295 /* 7.18.2.2. Limits of minimum-width integer types */
297 /* Here we assume a standard architecture where the hardware integer
298 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
299 are the same as the corresponding N_t types. */
301 #undef INT_LEAST8_MIN
302 #undef INT_LEAST8_MAX
303 #undef UINT_LEAST8_MAX
304 #define INT_LEAST8_MIN INT8_MIN
305 #define INT_LEAST8_MAX INT8_MAX
306 #define UINT_LEAST8_MAX UINT8_MAX
308 #undef INT_LEAST16_MIN
309 #undef INT_LEAST16_MAX
310 #undef UINT_LEAST16_MAX
311 #define INT_LEAST16_MIN INT16_MIN
312 #define INT_LEAST16_MAX INT16_MAX
313 #define UINT_LEAST16_MAX UINT16_MAX
315 #undef INT_LEAST32_MIN
316 #undef INT_LEAST32_MAX
317 #undef UINT_LEAST32_MAX
318 #define INT_LEAST32_MIN INT32_MIN
319 #define INT_LEAST32_MAX INT32_MAX
320 #define UINT_LEAST32_MAX UINT32_MAX
322 #undef INT_LEAST64_MIN
323 #undef INT_LEAST64_MAX
325 # define INT_LEAST64_MIN INT64_MIN
326 # define INT_LEAST64_MAX INT64_MAX
329 #undef UINT_LEAST64_MAX
331 # define UINT_LEAST64_MAX UINT64_MAX
334 /* 7.18.2.3. Limits of fastest minimum-width integer types */
336 /* Here we assume a standard architecture where the hardware integer
337 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
338 are taken from the same list of types. */
342 #undef UINT_FAST8_MAX
343 #define INT_FAST8_MIN LONG_MIN
344 #define INT_FAST8_MAX LONG_MAX
345 #define UINT_FAST8_MAX ULONG_MAX
347 #undef INT_FAST16_MIN
348 #undef INT_FAST16_MAX
349 #undef UINT_FAST16_MAX
350 #define INT_FAST16_MIN LONG_MIN
351 #define INT_FAST16_MAX LONG_MAX
352 #define UINT_FAST16_MAX ULONG_MAX
354 #undef INT_FAST32_MIN
355 #undef INT_FAST32_MAX
356 #undef UINT_FAST32_MAX
357 #define INT_FAST32_MIN LONG_MIN
358 #define INT_FAST32_MAX LONG_MAX
359 #define UINT_FAST32_MAX ULONG_MAX
361 #undef INT_FAST64_MIN
362 #undef INT_FAST64_MAX
364 # define INT_FAST64_MIN INT64_MIN
365 # define INT_FAST64_MAX INT64_MAX
368 #undef UINT_FAST64_MAX
370 # define UINT_FAST64_MAX UINT64_MAX
373 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
378 #define INTPTR_MIN LONG_MIN
379 #define INTPTR_MAX LONG_MAX
380 #define UINTPTR_MAX ULONG_MAX
382 /* 7.18.2.5. Limits of greatest-width integer types */
387 # define INTMAX_MIN INT64_MIN
388 # define INTMAX_MAX INT64_MAX
390 # define INTMAX_MIN INT32_MIN
391 # define INTMAX_MAX INT32_MAX
396 # define UINTMAX_MAX UINT64_MAX
398 # define UINTMAX_MAX UINT32_MAX
401 /* 7.18.3. Limits of other integer types */
403 /* ptrdiff_t limits */
406 #define PTRDIFF_MIN \
407 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
408 #define PTRDIFF_MAX \
409 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
411 /* sig_atomic_t limits */
412 #undef SIG_ATOMIC_MIN
413 #undef SIG_ATOMIC_MAX
414 #define SIG_ATOMIC_MIN \
415 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
416 0@SIG_ATOMIC_T_SUFFIX@)
417 #define SIG_ATOMIC_MAX \
418 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
419 0@SIG_ATOMIC_T_SUFFIX@)
424 #define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
430 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
432 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
438 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
440 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
442 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
444 /* 7.18.4. Macros for integer constants */
446 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
448 /* 7.18.4.1. Macros for minimum-width integer constants */
449 /* According to ISO C 99 Technical Corrigendum 1 */
451 /* Here we assume a standard architecture where the hardware integer
452 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
462 #define UINT16_C(x) x
467 #define UINT32_C(x) x ## U
471 #if LONG_MAX >> 31 >> 31 == 1
472 # define INT64_C(x) x##L
473 #elif defined _MSC_VER
474 # define INT64_C(x) x##i64
475 #elif @HAVE_LONG_LONG_INT@
476 # define INT64_C(x) x##LL
478 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
479 # define UINT64_C(x) x##UL
480 #elif defined _MSC_VER
481 # define UINT64_C(x) x##ui64
482 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
483 # define UINT64_C(x) x##ULL
486 /* 7.18.4.2. Macros for greatest-width integer constants */
489 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
490 # define INTMAX_C(x) x##LL
491 #elif defined GL_INT64_T
492 # define INTMAX_C(x) INT64_C(x)
494 # define INTMAX_C(x) x##L
498 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
499 # define UINTMAX_C(x) x##ULL
500 #elif defined GL_UINT64_T
501 # define UINTMAX_C(x) UINT64_C(x)
503 # define UINTMAX_C(x) x##UL
506 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
508 #endif /* _GL_STDINT_H */