1 /* Copyright (C) 2001-2002, 2004-2007, 2009 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. */
52 # @INCLUDE_NEXT@ @NEXT_STDINT_H@
55 #if ! defined _GL_STDINT_H && ! defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H
58 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
59 IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
60 AIX 5.2 <sys/types.h> isn't needed and causes troubles.
61 MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
62 relies on the system <stdint.h> definitions, so include
63 <sys/types.h> after @NEXT_STDINT_H@. */
64 #if @HAVE_SYS_TYPES_H@ && ! defined _AIX
65 # include <sys/types.h>
68 /* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
72 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
73 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
74 <inttypes.h> also defines intptr_t and uintptr_t. */
75 # include <inttypes.h>
76 #elif @HAVE_SYS_INTTYPES_H@
77 /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
78 the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
79 # include <sys/inttypes.h>
82 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
83 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
84 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
85 included by <sys/types.h>. */
86 # include <sys/bitypes.h>
89 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
91 /* Get WCHAR_MIN, WCHAR_MAX. */
92 # if ! (defined WCHAR_MIN && defined WCHAR_MAX)
98 #undef _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
100 /* Minimum and maximum values for a integer type under the usual assumption.
101 Return an unspecified value if BITS == 0, adding a check to pacify
104 #define _STDINT_MIN(signed, bits, zero) \
105 ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
107 #define _STDINT_MAX(signed, bits, zero) \
109 ? ~ _STDINT_MIN (signed, bits, zero) \
110 : /* The expression for the unsigned case. The subtraction of (signed) \
111 is a nop in the unsigned case and avoids "signed integer overflow" \
112 warnings in the signed case. */ \
113 ((((zero) + 1) << ((bits) ? (bits) - 1 - (signed) : 0)) - 1) * 2 + 1)
115 /* 7.18.1.1. Exact-width integer types */
117 /* Here we assume a standard architecture where the hardware integer
118 types have 8, 16, 32, optionally 64 bits. */
122 #define int8_t signed char
123 #define uint8_t unsigned char
127 #define int16_t short int
128 #define uint16_t unsigned short int
133 #define uint32_t unsigned int
135 /* Do not undefine int64_t if gnulib is not being used with 64-bit
136 types, since otherwise it breaks platforms like Tandem/NSK. */
137 #if LONG_MAX >> 31 >> 31 == 1
139 # define int64_t long int
141 #elif defined _MSC_VER
143 # define int64_t __int64
145 #elif @HAVE_LONG_LONG_INT@
147 # define int64_t long long int
151 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
153 # define uint64_t unsigned long int
155 #elif defined _MSC_VER
157 # define uint64_t unsigned __int64
159 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
161 # define uint64_t unsigned long long int
165 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
171 /* 7.18.1.2. Minimum-width integer types */
173 /* Here we assume a standard architecture where the hardware integer
174 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
175 are the same as the corresponding N_t types. */
180 #undef uint_least16_t
182 #undef uint_least32_t
184 #undef uint_least64_t
185 #define int_least8_t int8_t
186 #define uint_least8_t uint8_t
187 #define int_least16_t int16_t
188 #define uint_least16_t uint16_t
189 #define int_least32_t int32_t
190 #define uint_least32_t uint32_t
192 # define int_least64_t int64_t
195 # define uint_least64_t uint64_t
198 /* 7.18.1.3. Fastest minimum-width integer types */
200 /* Note: Other <stdint.h> substitutes may define these types differently.
201 It is not recommended to use these types in public header files. */
203 /* Here we assume a standard architecture where the hardware integer
204 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
205 are taken from the same list of types. Assume that 'long int'
206 is fast enough for all narrower integers. */
216 #define int_fast8_t long int
217 #define uint_fast8_t unsigned int_fast8_t
218 #define int_fast16_t long int
219 #define uint_fast16_t unsigned int_fast16_t
220 #define int_fast32_t long int
221 #define uint_fast32_t unsigned int_fast32_t
223 # define int_fast64_t int64_t
226 # define uint_fast64_t uint64_t
229 /* 7.18.1.4. Integer types capable of holding object pointers */
233 #define intptr_t long int
234 #define uintptr_t unsigned long int
236 /* 7.18.1.5. Greatest-width integer types */
238 /* Note: These types are compiler dependent. It may be unwise to use them in
239 public header files. */
242 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
243 # define intmax_t long long int
244 #elif defined GL_INT64_T
245 # define intmax_t int64_t
247 # define intmax_t long int
251 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
252 # define uintmax_t unsigned long long int
253 #elif defined GL_UINT64_T
254 # define uintmax_t uint64_t
256 # define uintmax_t unsigned long int
259 /* Verify that intmax_t and uintmax_t have the same size. Too much code
260 breaks if this is not the case. If this check fails, the reason is likely
261 to be found in the autoconf macros. */
262 typedef int _verify_intmax_size
[2 * (sizeof (intmax_t) == sizeof (uintmax_t)) - 1];
264 /* 7.18.2. Limits of specified-width integer types */
266 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
268 /* 7.18.2.1. Limits of exact-width integer types */
270 /* Here we assume a standard architecture where the hardware integer
271 types have 8, 16, 32, optionally 64 bits. */
276 #define INT8_MIN (~ INT8_MAX)
278 #define UINT8_MAX 255
283 #define INT16_MIN (~ INT16_MAX)
284 #define INT16_MAX 32767
285 #define UINT16_MAX 65535
290 #define INT32_MIN (~ INT32_MAX)
291 #define INT32_MAX 2147483647
292 #define UINT32_MAX 4294967295U
297 /* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0
298 evaluates the latter incorrectly in preprocessor expressions. */
299 # define INT64_MIN (- INTMAX_C (1) << 63)
300 # define INT64_MAX INTMAX_C (9223372036854775807)
305 # define UINT64_MAX UINTMAX_C (18446744073709551615)
308 /* 7.18.2.2. Limits of minimum-width integer types */
310 /* Here we assume a standard architecture where the hardware integer
311 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
312 are the same as the corresponding N_t types. */
314 #undef INT_LEAST8_MIN
315 #undef INT_LEAST8_MAX
316 #undef UINT_LEAST8_MAX
317 #define INT_LEAST8_MIN INT8_MIN
318 #define INT_LEAST8_MAX INT8_MAX
319 #define UINT_LEAST8_MAX UINT8_MAX
321 #undef INT_LEAST16_MIN
322 #undef INT_LEAST16_MAX
323 #undef UINT_LEAST16_MAX
324 #define INT_LEAST16_MIN INT16_MIN
325 #define INT_LEAST16_MAX INT16_MAX
326 #define UINT_LEAST16_MAX UINT16_MAX
328 #undef INT_LEAST32_MIN
329 #undef INT_LEAST32_MAX
330 #undef UINT_LEAST32_MAX
331 #define INT_LEAST32_MIN INT32_MIN
332 #define INT_LEAST32_MAX INT32_MAX
333 #define UINT_LEAST32_MAX UINT32_MAX
335 #undef INT_LEAST64_MIN
336 #undef INT_LEAST64_MAX
338 # define INT_LEAST64_MIN INT64_MIN
339 # define INT_LEAST64_MAX INT64_MAX
342 #undef UINT_LEAST64_MAX
344 # define UINT_LEAST64_MAX UINT64_MAX
347 /* 7.18.2.3. Limits of fastest minimum-width integer types */
349 /* Here we assume a standard architecture where the hardware integer
350 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
351 are taken from the same list of types. */
355 #undef UINT_FAST8_MAX
356 #define INT_FAST8_MIN LONG_MIN
357 #define INT_FAST8_MAX LONG_MAX
358 #define UINT_FAST8_MAX ULONG_MAX
360 #undef INT_FAST16_MIN
361 #undef INT_FAST16_MAX
362 #undef UINT_FAST16_MAX
363 #define INT_FAST16_MIN LONG_MIN
364 #define INT_FAST16_MAX LONG_MAX
365 #define UINT_FAST16_MAX ULONG_MAX
367 #undef INT_FAST32_MIN
368 #undef INT_FAST32_MAX
369 #undef UINT_FAST32_MAX
370 #define INT_FAST32_MIN LONG_MIN
371 #define INT_FAST32_MAX LONG_MAX
372 #define UINT_FAST32_MAX ULONG_MAX
374 #undef INT_FAST64_MIN
375 #undef INT_FAST64_MAX
377 # define INT_FAST64_MIN INT64_MIN
378 # define INT_FAST64_MAX INT64_MAX
381 #undef UINT_FAST64_MAX
383 # define UINT_FAST64_MAX UINT64_MAX
386 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
391 #define INTPTR_MIN LONG_MIN
392 #define INTPTR_MAX LONG_MAX
393 #define UINTPTR_MAX ULONG_MAX
395 /* 7.18.2.5. Limits of greatest-width integer types */
400 # define INTMAX_MIN INT64_MIN
401 # define INTMAX_MAX INT64_MAX
403 # define INTMAX_MIN INT32_MIN
404 # define INTMAX_MAX INT32_MAX
409 # define UINTMAX_MAX UINT64_MAX
411 # define UINTMAX_MAX UINT32_MAX
414 /* 7.18.3. Limits of other integer types */
416 /* ptrdiff_t limits */
419 #define PTRDIFF_MIN \
420 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
421 #define PTRDIFF_MAX \
422 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
424 /* sig_atomic_t limits */
425 #undef SIG_ATOMIC_MIN
426 #undef SIG_ATOMIC_MAX
427 #define SIG_ATOMIC_MIN \
428 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
429 0@SIG_ATOMIC_T_SUFFIX@)
430 #define SIG_ATOMIC_MAX \
431 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
432 0@SIG_ATOMIC_T_SUFFIX@)
437 #define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
443 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
445 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
451 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
453 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
455 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
457 /* 7.18.4. Macros for integer constants */
459 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
461 /* 7.18.4.1. Macros for minimum-width integer constants */
462 /* According to ISO C 99 Technical Corrigendum 1 */
464 /* Here we assume a standard architecture where the hardware integer
465 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
475 #define UINT16_C(x) x
480 #define UINT32_C(x) x ## U
484 #if LONG_MAX >> 31 >> 31 == 1
485 # define INT64_C(x) x##L
486 #elif defined _MSC_VER
487 # define INT64_C(x) x##i64
488 #elif @HAVE_LONG_LONG_INT@
489 # define INT64_C(x) x##LL
491 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
492 # define UINT64_C(x) x##UL
493 #elif defined _MSC_VER
494 # define UINT64_C(x) x##ui64
495 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
496 # define UINT64_C(x) x##ULL
499 /* 7.18.4.2. Macros for greatest-width integer constants */
502 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
503 # define INTMAX_C(x) x##LL
504 #elif defined GL_INT64_T
505 # define INTMAX_C(x) INT64_C(x)
507 # define INTMAX_C(x) x##L
511 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
512 # define UINTMAX_C(x) x##ULL
513 #elif defined GL_UINT64_T
514 # define UINTMAX_C(x) UINT64_C(x)
516 # define UINTMAX_C(x) x##UL
519 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
521 #endif /* _GL_STDINT_H */
522 #endif /* !defined _GL_STDINT_H && !defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H */
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