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. */
20 * ISO C 99 <stdint.h> for platforms that lack it.
21 * <http://www.opengroup.org/susv3xbd/stdint.h.html>
26 /* Get those types that are already defined in other system include
27 files, so that we can "#define int8_t signed char" below without
28 worrying about a later system include file containing a "typedef
29 signed char int8_t;" that will get messed up by our macro. Our
30 macros should all be consistent with the system versions, except
31 for the "fast" types and macros, which we recommend against using
32 in public interfaces due to compiler differences. */
35 # if defined __sgi && ! defined __c99
36 /* Bypass IRIX's <stdint.h> if in C89 mode, since it merely annoys users
37 with "This header file is to be used only for c99 mode compilations"
41 /* Other systems may have an incomplete or buggy <stdint.h>.
42 Include it before <inttypes.h>, since any "#include <stdint.h>"
43 in <inttypes.h> would reinclude us, skipping our contents because
44 _GL_STDINT_H is defined.
45 The include_next requires a split double-inclusion guard. */
46 # @INCLUDE_NEXT@ @NEXT_STDINT_H@
49 #if ! defined _GL_STDINT_H && ! defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H
52 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
53 IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
54 AIX 5.2 <sys/types.h> isn't needed and causes troubles.
55 MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
56 relies on the system <stdint.h> definitions, so include
57 <sys/types.h> after @NEXT_STDINT_H@. */
58 #if @HAVE_SYS_TYPES_H@ && ! defined _AIX
59 # include <sys/types.h>
62 /* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
66 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
67 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
68 <inttypes.h> also defines intptr_t and uintptr_t. */
69 # define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
70 # include <inttypes.h>
71 # undef _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
72 #elif @HAVE_SYS_INTTYPES_H@
73 /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
74 the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
75 # include <sys/inttypes.h>
78 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
79 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
80 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
81 included by <sys/types.h>. */
82 # include <sys/bitypes.h>
85 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
87 /* Get WCHAR_MIN, WCHAR_MAX. */
88 # if ! (defined WCHAR_MIN && defined WCHAR_MAX)
94 /* Minimum and maximum values for a integer type under the usual assumption.
95 Return an unspecified value if BITS == 0, adding a check to pacify
98 #define _STDINT_MIN(signed, bits, zero) \
99 ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
101 #define _STDINT_MAX(signed, bits, zero) \
103 ? ~ _STDINT_MIN (signed, bits, zero) \
104 : ((((zero) + 1) << ((bits) ? (bits) - 1 : 0)) - 1) * 2 + 1)
106 /* 7.18.1.1. Exact-width integer types */
108 /* Here we assume a standard architecture where the hardware integer
109 types have 8, 16, 32, optionally 64 bits. */
113 #define int8_t signed char
114 #define uint8_t unsigned char
118 #define int16_t short int
119 #define uint16_t unsigned short int
124 #define uint32_t unsigned int
126 /* Do not undefine int64_t if gnulib is not being used with 64-bit
127 types, since otherwise it breaks platforms like Tandem/NSK. */
128 #if LONG_MAX >> 31 >> 31 == 1
130 # define int64_t long int
132 #elif defined _MSC_VER
134 # define int64_t __int64
136 #elif @HAVE_LONG_LONG_INT@
138 # define int64_t long long int
142 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
144 # define uint64_t unsigned long int
146 #elif defined _MSC_VER
148 # define uint64_t unsigned __int64
150 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
152 # define uint64_t unsigned long long int
156 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
162 /* 7.18.1.2. Minimum-width integer types */
164 /* Here we assume a standard architecture where the hardware integer
165 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
166 are the same as the corresponding N_t types. */
171 #undef uint_least16_t
173 #undef uint_least32_t
175 #undef uint_least64_t
176 #define int_least8_t int8_t
177 #define uint_least8_t uint8_t
178 #define int_least16_t int16_t
179 #define uint_least16_t uint16_t
180 #define int_least32_t int32_t
181 #define uint_least32_t uint32_t
183 # define int_least64_t int64_t
186 # define uint_least64_t uint64_t
189 /* 7.18.1.3. Fastest minimum-width integer types */
191 /* Note: Other <stdint.h> substitutes may define these types differently.
192 It is not recommended to use these types in public header files. */
194 /* Here we assume a standard architecture where the hardware integer
195 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
196 are taken from the same list of types. Assume that 'long int'
197 is fast enough for all narrower integers. */
207 #define int_fast8_t long int
208 #define uint_fast8_t unsigned int_fast8_t
209 #define int_fast16_t long int
210 #define uint_fast16_t unsigned int_fast16_t
211 #define int_fast32_t long int
212 #define uint_fast32_t unsigned int_fast32_t
214 # define int_fast64_t int64_t
217 # define uint_fast64_t uint64_t
220 /* 7.18.1.4. Integer types capable of holding object pointers */
224 #define intptr_t long int
225 #define uintptr_t unsigned long int
227 /* 7.18.1.5. Greatest-width integer types */
229 /* Note: These types are compiler dependent. It may be unwise to use them in
230 public header files. */
233 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
234 # define intmax_t long long int
235 #elif defined GL_INT64_T
236 # define intmax_t int64_t
238 # define intmax_t long int
242 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
243 # define uintmax_t unsigned long long int
244 #elif defined GL_UINT64_T
245 # define uintmax_t uint64_t
247 # define uintmax_t unsigned long int
250 /* Verify that intmax_t and uintmax_t have the same size. Too much code
251 breaks if this is not the case. If this check fails, the reason is likely
252 to be found in the autoconf macros. */
253 typedef int _verify_intmax_size[2 * (sizeof (intmax_t) == sizeof (uintmax_t)) - 1];
255 /* 7.18.2. Limits of specified-width integer types */
257 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
259 /* 7.18.2.1. Limits of exact-width integer types */
261 /* Here we assume a standard architecture where the hardware integer
262 types have 8, 16, 32, optionally 64 bits. */
267 #define INT8_MIN (~ INT8_MAX)
269 #define UINT8_MAX 255
274 #define INT16_MIN (~ INT16_MAX)
275 #define INT16_MAX 32767
276 #define UINT16_MAX 65535
281 #define INT32_MIN (~ INT32_MAX)
282 #define INT32_MAX 2147483647
283 #define UINT32_MAX 4294967295U
288 /* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0
289 evaluates the latter incorrectly in preprocessor expressions. */
290 # define INT64_MIN (- INTMAX_C (1) << 63)
291 # define INT64_MAX INTMAX_C (9223372036854775807)
296 # define UINT64_MAX UINTMAX_C (18446744073709551615)
299 /* 7.18.2.2. Limits of minimum-width integer types */
301 /* Here we assume a standard architecture where the hardware integer
302 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
303 are the same as the corresponding N_t types. */
305 #undef INT_LEAST8_MIN
306 #undef INT_LEAST8_MAX
307 #undef UINT_LEAST8_MAX
308 #define INT_LEAST8_MIN INT8_MIN
309 #define INT_LEAST8_MAX INT8_MAX
310 #define UINT_LEAST8_MAX UINT8_MAX
312 #undef INT_LEAST16_MIN
313 #undef INT_LEAST16_MAX
314 #undef UINT_LEAST16_MAX
315 #define INT_LEAST16_MIN INT16_MIN
316 #define INT_LEAST16_MAX INT16_MAX
317 #define UINT_LEAST16_MAX UINT16_MAX
319 #undef INT_LEAST32_MIN
320 #undef INT_LEAST32_MAX
321 #undef UINT_LEAST32_MAX
322 #define INT_LEAST32_MIN INT32_MIN
323 #define INT_LEAST32_MAX INT32_MAX
324 #define UINT_LEAST32_MAX UINT32_MAX
326 #undef INT_LEAST64_MIN
327 #undef INT_LEAST64_MAX
329 # define INT_LEAST64_MIN INT64_MIN
330 # define INT_LEAST64_MAX INT64_MAX
333 #undef UINT_LEAST64_MAX
335 # define UINT_LEAST64_MAX UINT64_MAX
338 /* 7.18.2.3. Limits of fastest minimum-width integer types */
340 /* Here we assume a standard architecture where the hardware integer
341 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
342 are taken from the same list of types. */
346 #undef UINT_FAST8_MAX
347 #define INT_FAST8_MIN LONG_MIN
348 #define INT_FAST8_MAX LONG_MAX
349 #define UINT_FAST8_MAX ULONG_MAX
351 #undef INT_FAST16_MIN
352 #undef INT_FAST16_MAX
353 #undef UINT_FAST16_MAX
354 #define INT_FAST16_MIN LONG_MIN
355 #define INT_FAST16_MAX LONG_MAX
356 #define UINT_FAST16_MAX ULONG_MAX
358 #undef INT_FAST32_MIN
359 #undef INT_FAST32_MAX
360 #undef UINT_FAST32_MAX
361 #define INT_FAST32_MIN LONG_MIN
362 #define INT_FAST32_MAX LONG_MAX
363 #define UINT_FAST32_MAX ULONG_MAX
365 #undef INT_FAST64_MIN
366 #undef INT_FAST64_MAX
368 # define INT_FAST64_MIN INT64_MIN
369 # define INT_FAST64_MAX INT64_MAX
372 #undef UINT_FAST64_MAX
374 # define UINT_FAST64_MAX UINT64_MAX
377 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
382 #define INTPTR_MIN LONG_MIN
383 #define INTPTR_MAX LONG_MAX
384 #define UINTPTR_MAX ULONG_MAX
386 /* 7.18.2.5. Limits of greatest-width integer types */
391 # define INTMAX_MIN INT64_MIN
392 # define INTMAX_MAX INT64_MAX
394 # define INTMAX_MIN INT32_MIN
395 # define INTMAX_MAX INT32_MAX
400 # define UINTMAX_MAX UINT64_MAX
402 # define UINTMAX_MAX UINT32_MAX
405 /* 7.18.3. Limits of other integer types */
407 /* ptrdiff_t limits */
410 #define PTRDIFF_MIN \
411 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
412 #define PTRDIFF_MAX \
413 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
415 /* sig_atomic_t limits */
416 #undef SIG_ATOMIC_MIN
417 #undef SIG_ATOMIC_MAX
418 #define SIG_ATOMIC_MIN \
419 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
420 0@SIG_ATOMIC_T_SUFFIX@)
421 #define SIG_ATOMIC_MAX \
422 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
423 0@SIG_ATOMIC_T_SUFFIX@)
428 #define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
434 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
436 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
442 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
444 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
446 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
448 /* 7.18.4. Macros for integer constants */
450 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
452 /* 7.18.4.1. Macros for minimum-width integer constants */
453 /* According to ISO C 99 Technical Corrigendum 1 */
455 /* Here we assume a standard architecture where the hardware integer
456 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
466 #define UINT16_C(x) x
471 #define UINT32_C(x) x ## U
475 #if LONG_MAX >> 31 >> 31 == 1
476 # define INT64_C(x) x##L
477 #elif defined _MSC_VER
478 # define INT64_C(x) x##i64
479 #elif @HAVE_LONG_LONG_INT@
480 # define INT64_C(x) x##LL
482 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
483 # define UINT64_C(x) x##UL
484 #elif defined _MSC_VER
485 # define UINT64_C(x) x##ui64
486 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
487 # define UINT64_C(x) x##ULL
490 /* 7.18.4.2. Macros for greatest-width integer constants */
493 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
494 # define INTMAX_C(x) x##LL
495 #elif defined GL_INT64_T
496 # define INTMAX_C(x) INT64_C(x)
498 # define INTMAX_C(x) x##L
502 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
503 # define UINTMAX_C(x) x##ULL
504 #elif defined GL_UINT64_T
505 # define UINTMAX_C(x) UINT64_C(x)
507 # define UINTMAX_C(x) x##UL
510 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
512 #endif /* _GL_STDINT_H */
513 #endif /* !defined _GL_STDINT_H && !defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H */