1 /* Copyright (C) 2001-2002, 2004-2007, 2009, 2010
2 Free Software Foundation, Inc.
3 Written by Paul Eggert, Bruno Haible, Sam Steingold, Peter Burwood.
4 This file is part of gnulib.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software Foundation,
18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
21 * ISO C 99 <stdint.h> for platforms that lack it.
22 * <http://www.opengroup.org/susv3xbd/stdint.h.html>
27 /* When including a system file that in turn includes <inttypes.h>,
28 use the system <inttypes.h>, not our substitute. This avoids
29 problems with (for example) VMS, whose <sys/bitypes.h> includes
31 #define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
33 /* Get those types that are already defined in other system include
34 files, so that we can "#define int8_t signed char" below without
35 worrying about a later system include file containing a "typedef
36 signed char int8_t;" that will get messed up by our macro. Our
37 macros should all be consistent with the system versions, except
38 for the "fast" types and macros, which we recommend against using
39 in public interfaces due to compiler differences. */
42 # if defined __sgi && ! defined __c99
43 /* Bypass IRIX's <stdint.h> if in C89 mode, since it merely annoys users
44 with "This header file is to be used only for c99 mode compilations"
48 /* Other systems may have an incomplete or buggy <stdint.h>.
49 Include it before <inttypes.h>, since any "#include <stdint.h>"
50 in <inttypes.h> would reinclude us, skipping our contents because
51 _GL_STDINT_H is defined.
52 The include_next requires a split double-inclusion guard. */
53 # @INCLUDE_NEXT@ @NEXT_STDINT_H@
56 #if ! defined _GL_STDINT_H && ! defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H
59 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
60 IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
61 AIX 5.2 <sys/types.h> isn't needed and causes troubles.
62 MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
63 relies on the system <stdint.h> definitions, so include
64 <sys/types.h> after @NEXT_STDINT_H@. */
65 #if @HAVE_SYS_TYPES_H@ && ! defined _AIX
66 # include <sys/types.h>
69 /* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
73 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
74 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
75 <inttypes.h> also defines intptr_t and uintptr_t. */
76 # include <inttypes.h>
77 #elif @HAVE_SYS_INTTYPES_H@
78 /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
79 the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
80 # include <sys/inttypes.h>
83 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
84 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
85 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
86 included by <sys/types.h>. */
87 # include <sys/bitypes.h>
90 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
92 /* Get WCHAR_MIN, WCHAR_MAX. */
93 # if ! (defined WCHAR_MIN && defined WCHAR_MAX)
99 #undef _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
101 /* Minimum and maximum values for a integer type under the usual assumption.
102 Return an unspecified value if BITS == 0, adding a check to pacify
105 #define _STDINT_MIN(signed, bits, zero) \
106 ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
108 #define _STDINT_MAX(signed, bits, zero) \
110 ? ~ _STDINT_MIN (signed, bits, zero) \
111 : /* The expression for the unsigned case. The subtraction of (signed) \
112 is a nop in the unsigned case and avoids "signed integer overflow" \
113 warnings in the signed case. */ \
114 ((((zero) + 1) << ((bits) ? (bits) - 1 - (signed) : 0)) - 1) * 2 + 1)
116 /* 7.18.1.1. Exact-width integer types */
118 /* Here we assume a standard architecture where the hardware integer
119 types have 8, 16, 32, optionally 64 bits. */
123 #define int8_t signed char
124 #define uint8_t unsigned char
128 #define int16_t short int
129 #define uint16_t unsigned short int
134 #define uint32_t unsigned int
136 /* Do not undefine int64_t if gnulib is not being used with 64-bit
137 types, since otherwise it breaks platforms like Tandem/NSK. */
138 #if LONG_MAX >> 31 >> 31 == 1
140 # define int64_t long int
142 #elif defined _MSC_VER
144 # define int64_t __int64
146 #elif @HAVE_LONG_LONG_INT@
148 # define int64_t long long int
152 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
154 # define uint64_t unsigned long int
156 #elif defined _MSC_VER
158 # define uint64_t unsigned __int64
160 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
162 # define uint64_t unsigned long long int
166 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
172 /* 7.18.1.2. Minimum-width integer types */
174 /* Here we assume a standard architecture where the hardware integer
175 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
176 are the same as the corresponding N_t types. */
181 #undef uint_least16_t
183 #undef uint_least32_t
185 #undef uint_least64_t
186 #define int_least8_t int8_t
187 #define uint_least8_t uint8_t
188 #define int_least16_t int16_t
189 #define uint_least16_t uint16_t
190 #define int_least32_t int32_t
191 #define uint_least32_t uint32_t
193 # define int_least64_t int64_t
196 # define uint_least64_t uint64_t
199 /* 7.18.1.3. Fastest minimum-width integer types */
201 /* Note: Other <stdint.h> substitutes may define these types differently.
202 It is not recommended to use these types in public header files. */
204 /* Here we assume a standard architecture where the hardware integer
205 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
206 are taken from the same list of types. Assume that 'long int'
207 is fast enough for all narrower integers. */
217 #define int_fast8_t long int
218 #define uint_fast8_t unsigned int_fast8_t
219 #define int_fast16_t long int
220 #define uint_fast16_t unsigned int_fast16_t
221 #define int_fast32_t long int
222 #define uint_fast32_t unsigned int_fast32_t
224 # define int_fast64_t int64_t
227 # define uint_fast64_t uint64_t
230 /* 7.18.1.4. Integer types capable of holding object pointers */
234 #define intptr_t long int
235 #define uintptr_t unsigned long int
237 /* 7.18.1.5. Greatest-width integer types */
239 /* Note: These types are compiler dependent. It may be unwise to use them in
240 public header files. */
243 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
244 # define intmax_t long long int
245 #elif defined GL_INT64_T
246 # define intmax_t int64_t
248 # define intmax_t long int
252 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
253 # define uintmax_t unsigned long long int
254 #elif defined GL_UINT64_T
255 # define uintmax_t uint64_t
257 # define uintmax_t unsigned long int
260 /* Verify that intmax_t and uintmax_t have the same size. Too much code
261 breaks if this is not the case. If this check fails, the reason is likely
262 to be found in the autoconf macros. */
263 typedef int _verify_intmax_size
[2 * (sizeof (intmax_t) == sizeof (uintmax_t)) - 1];
265 /* 7.18.2. Limits of specified-width integer types */
267 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
269 /* 7.18.2.1. Limits of exact-width integer types */
271 /* Here we assume a standard architecture where the hardware integer
272 types have 8, 16, 32, optionally 64 bits. */
277 #define INT8_MIN (~ INT8_MAX)
279 #define UINT8_MAX 255
284 #define INT16_MIN (~ INT16_MAX)
285 #define INT16_MAX 32767
286 #define UINT16_MAX 65535
291 #define INT32_MIN (~ INT32_MAX)
292 #define INT32_MAX 2147483647
293 #define UINT32_MAX 4294967295U
298 /* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0
299 evaluates the latter incorrectly in preprocessor expressions. */
300 # define INT64_MIN (- INTMAX_C (1) << 63)
301 # define INT64_MAX INTMAX_C (9223372036854775807)
306 # define UINT64_MAX UINTMAX_C (18446744073709551615)
309 /* 7.18.2.2. Limits of minimum-width integer types */
311 /* Here we assume a standard architecture where the hardware integer
312 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
313 are the same as the corresponding N_t types. */
315 #undef INT_LEAST8_MIN
316 #undef INT_LEAST8_MAX
317 #undef UINT_LEAST8_MAX
318 #define INT_LEAST8_MIN INT8_MIN
319 #define INT_LEAST8_MAX INT8_MAX
320 #define UINT_LEAST8_MAX UINT8_MAX
322 #undef INT_LEAST16_MIN
323 #undef INT_LEAST16_MAX
324 #undef UINT_LEAST16_MAX
325 #define INT_LEAST16_MIN INT16_MIN
326 #define INT_LEAST16_MAX INT16_MAX
327 #define UINT_LEAST16_MAX UINT16_MAX
329 #undef INT_LEAST32_MIN
330 #undef INT_LEAST32_MAX
331 #undef UINT_LEAST32_MAX
332 #define INT_LEAST32_MIN INT32_MIN
333 #define INT_LEAST32_MAX INT32_MAX
334 #define UINT_LEAST32_MAX UINT32_MAX
336 #undef INT_LEAST64_MIN
337 #undef INT_LEAST64_MAX
339 # define INT_LEAST64_MIN INT64_MIN
340 # define INT_LEAST64_MAX INT64_MAX
343 #undef UINT_LEAST64_MAX
345 # define UINT_LEAST64_MAX UINT64_MAX
348 /* 7.18.2.3. Limits of fastest minimum-width integer types */
350 /* Here we assume a standard architecture where the hardware integer
351 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
352 are taken from the same list of types. */
356 #undef UINT_FAST8_MAX
357 #define INT_FAST8_MIN LONG_MIN
358 #define INT_FAST8_MAX LONG_MAX
359 #define UINT_FAST8_MAX ULONG_MAX
361 #undef INT_FAST16_MIN
362 #undef INT_FAST16_MAX
363 #undef UINT_FAST16_MAX
364 #define INT_FAST16_MIN LONG_MIN
365 #define INT_FAST16_MAX LONG_MAX
366 #define UINT_FAST16_MAX ULONG_MAX
368 #undef INT_FAST32_MIN
369 #undef INT_FAST32_MAX
370 #undef UINT_FAST32_MAX
371 #define INT_FAST32_MIN LONG_MIN
372 #define INT_FAST32_MAX LONG_MAX
373 #define UINT_FAST32_MAX ULONG_MAX
375 #undef INT_FAST64_MIN
376 #undef INT_FAST64_MAX
378 # define INT_FAST64_MIN INT64_MIN
379 # define INT_FAST64_MAX INT64_MAX
382 #undef UINT_FAST64_MAX
384 # define UINT_FAST64_MAX UINT64_MAX
387 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
392 #define INTPTR_MIN LONG_MIN
393 #define INTPTR_MAX LONG_MAX
394 #define UINTPTR_MAX ULONG_MAX
396 /* 7.18.2.5. Limits of greatest-width integer types */
401 # define INTMAX_MIN INT64_MIN
402 # define INTMAX_MAX INT64_MAX
404 # define INTMAX_MIN INT32_MIN
405 # define INTMAX_MAX INT32_MAX
410 # define UINTMAX_MAX UINT64_MAX
412 # define UINTMAX_MAX UINT32_MAX
415 /* 7.18.3. Limits of other integer types */
417 /* ptrdiff_t limits */
420 #define PTRDIFF_MIN \
421 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
422 #define PTRDIFF_MAX \
423 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
425 /* sig_atomic_t limits */
426 #undef SIG_ATOMIC_MIN
427 #undef SIG_ATOMIC_MAX
428 #define SIG_ATOMIC_MIN \
429 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
430 0@SIG_ATOMIC_T_SUFFIX@)
431 #define SIG_ATOMIC_MAX \
432 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
433 0@SIG_ATOMIC_T_SUFFIX@)
438 #define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
444 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
446 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
452 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
454 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
456 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
458 /* 7.18.4. Macros for integer constants */
460 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
462 /* 7.18.4.1. Macros for minimum-width integer constants */
463 /* According to ISO C 99 Technical Corrigendum 1 */
465 /* Here we assume a standard architecture where the hardware integer
466 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
476 #define UINT16_C(x) x
481 #define UINT32_C(x) x ## U
485 #if LONG_MAX >> 31 >> 31 == 1
486 # define INT64_C(x) x##L
487 #elif defined _MSC_VER
488 # define INT64_C(x) x##i64
489 #elif @HAVE_LONG_LONG_INT@
490 # define INT64_C(x) x##LL
492 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
493 # define UINT64_C(x) x##UL
494 #elif defined _MSC_VER
495 # define UINT64_C(x) x##ui64
496 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
497 # define UINT64_C(x) x##ULL
500 /* 7.18.4.2. Macros for greatest-width integer constants */
503 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
504 # define INTMAX_C(x) x##LL
505 #elif defined GL_INT64_T
506 # define INTMAX_C(x) INT64_C(x)
508 # define INTMAX_C(x) x##L
512 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
513 # define UINTMAX_C(x) x##ULL
514 #elif defined GL_UINT64_T
515 # define UINTMAX_C(x) UINT64_C(x)
517 # define UINTMAX_C(x) x##UL
520 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
522 #endif /* _GL_STDINT_H */
523 #endif /* !defined _GL_STDINT_H && !defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H */
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