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 # include @ABSOLUTE_STDINT_H@
49 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
50 IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
51 AIX 5.2 <sys/types.h> isn't needed and causes troubles.
52 MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
53 relies on the system <stdint.h> definitions, so include
54 <sys/types.h> after @ABSOLUTE_STDINT_H@. */
55 #if @HAVE_SYS_TYPES_H@ && ! defined _AIX
56 # include <sys/types.h>
59 /* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
63 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
64 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
65 <inttypes.h> also defines intptr_t and uintptr_t. */
66 # define _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
67 # include <inttypes.h>
68 # undef _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
69 #elif @HAVE_SYS_INTTYPES_H@
70 /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
71 the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
72 # include <sys/inttypes.h>
75 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
76 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
77 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
78 included by <sys/types.h>. */
79 # include <sys/bitypes.h>
82 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
84 /* Get WCHAR_MIN, WCHAR_MAX. */
85 # if ! (defined WCHAR_MIN && defined WCHAR_MAX)
91 /* Minimum and maximum values for a integer type under the usual assumption.
92 Return an unspecified value if BITS == 0, adding a check to pacify
95 #define _STDINT_MIN(signed, bits, zero) \
96 ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
98 #define _STDINT_MAX(signed, bits, zero) \
100 ? ~ _STDINT_MIN (signed, bits, zero) \
101 : ((((zero) + 1) << ((bits) ? (bits) - 1 : 0)) - 1) * 2 + 1)
103 /* 7.18.1.1. Exact-width integer types */
105 /* Here we assume a standard architecture where the hardware integer
106 types have 8, 16, 32, optionally 64 bits. */
110 #define int8_t signed char
111 #define uint8_t unsigned char
115 #define int16_t short int
116 #define uint16_t unsigned short int
121 #define uint32_t unsigned int
123 /* Do not undefine int64_t if gnulib is not being used with 64-bit
124 types, since otherwise it breaks platforms like Tandem/NSK. */
125 #if LONG_MAX >> 31 >> 31 == 1
127 # define int64_t long int
129 #elif defined _MSC_VER
131 # define int64_t __int64
133 #elif @HAVE_LONG_LONG_INT@
135 # define int64_t long long int
139 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
141 # define uint64_t unsigned long int
143 #elif defined _MSC_VER
145 # define uint64_t unsigned __int64
147 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
149 # define uint64_t unsigned long long int
153 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
159 /* 7.18.1.2. Minimum-width integer types */
161 /* Here we assume a standard architecture where the hardware integer
162 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
163 are the same as the corresponding N_t types. */
168 #undef uint_least16_t
170 #undef uint_least32_t
172 #undef uint_least64_t
173 #define int_least8_t int8_t
174 #define uint_least8_t uint8_t
175 #define int_least16_t int16_t
176 #define uint_least16_t uint16_t
177 #define int_least32_t int32_t
178 #define uint_least32_t uint32_t
180 # define int_least64_t int64_t
183 # define uint_least64_t uint64_t
186 /* 7.18.1.3. Fastest minimum-width integer types */
188 /* Note: Other <stdint.h> substitutes may define these types differently.
189 It is not recommended to use these types in public header files. */
191 /* Here we assume a standard architecture where the hardware integer
192 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
193 are taken from the same list of types. Assume that 'long int'
194 is fast enough for all narrower integers. */
204 #define int_fast8_t long int
205 #define uint_fast8_t unsigned int_fast8_t
206 #define int_fast16_t long int
207 #define uint_fast16_t unsigned int_fast16_t
208 #define int_fast32_t long int
209 #define uint_fast32_t unsigned int_fast32_t
211 # define int_fast64_t int64_t
214 # define uint_fast64_t uint64_t
217 /* 7.18.1.4. Integer types capable of holding object pointers */
221 #define intptr_t long int
222 #define uintptr_t unsigned long int
224 /* 7.18.1.5. Greatest-width integer types */
226 /* Note: These types are compiler dependent. It may be unwise to use them in
227 public header files. */
230 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
231 # define intmax_t long long int
232 #elif defined GL_INT64_T
233 # define intmax_t int64_t
235 # define intmax_t long int
239 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
240 # define uintmax_t unsigned long long int
241 #elif defined GL_UINT64_T
242 # define uintmax_t uint64_t
244 # define uintmax_t unsigned long int
247 /* 7.18.2. Limits of specified-width integer types */
249 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
251 /* 7.18.2.1. Limits of exact-width integer types */
253 /* Here we assume a standard architecture where the hardware integer
254 types have 8, 16, 32, optionally 64 bits. */
259 #define INT8_MIN (~ INT8_MAX)
261 #define UINT8_MAX 255
266 #define INT16_MIN (~ INT16_MAX)
267 #define INT16_MAX 32767
268 #define UINT16_MAX 65535
273 #define INT32_MIN (~ INT32_MAX)
274 #define INT32_MAX 2147483647
275 #define UINT32_MAX 4294967295U
280 /* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0
281 evaluates the latter incorrectly in preprocessor expressions. */
282 # define INT64_MIN (- INTMAX_C (1) << 63)
283 # define INT64_MAX INTMAX_C (9223372036854775807)
288 # define UINT64_MAX UINTMAX_C (18446744073709551615)
291 /* 7.18.2.2. Limits of minimum-width integer types */
293 /* Here we assume a standard architecture where the hardware integer
294 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
295 are the same as the corresponding N_t types. */
297 #undef INT_LEAST8_MIN
298 #undef INT_LEAST8_MAX
299 #undef UINT_LEAST8_MAX
300 #define INT_LEAST8_MIN INT8_MIN
301 #define INT_LEAST8_MAX INT8_MAX
302 #define UINT_LEAST8_MAX UINT8_MAX
304 #undef INT_LEAST16_MIN
305 #undef INT_LEAST16_MAX
306 #undef UINT_LEAST16_MAX
307 #define INT_LEAST16_MIN INT16_MIN
308 #define INT_LEAST16_MAX INT16_MAX
309 #define UINT_LEAST16_MAX UINT16_MAX
311 #undef INT_LEAST32_MIN
312 #undef INT_LEAST32_MAX
313 #undef UINT_LEAST32_MAX
314 #define INT_LEAST32_MIN INT32_MIN
315 #define INT_LEAST32_MAX INT32_MAX
316 #define UINT_LEAST32_MAX UINT32_MAX
318 #undef INT_LEAST64_MIN
319 #undef INT_LEAST64_MAX
321 # define INT_LEAST64_MIN INT64_MIN
322 # define INT_LEAST64_MAX INT64_MAX
325 #undef UINT_LEAST64_MAX
327 # define UINT_LEAST64_MAX UINT64_MAX
330 /* 7.18.2.3. Limits of fastest minimum-width integer types */
332 /* Here we assume a standard architecture where the hardware integer
333 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
334 are taken from the same list of types. */
338 #undef UINT_FAST8_MAX
339 #define INT_FAST8_MIN LONG_MIN
340 #define INT_FAST8_MAX LONG_MAX
341 #define UINT_FAST8_MAX ULONG_MAX
343 #undef INT_FAST16_MIN
344 #undef INT_FAST16_MAX
345 #undef UINT_FAST16_MAX
346 #define INT_FAST16_MIN LONG_MIN
347 #define INT_FAST16_MAX LONG_MAX
348 #define UINT_FAST16_MAX ULONG_MAX
350 #undef INT_FAST32_MIN
351 #undef INT_FAST32_MAX
352 #undef UINT_FAST32_MAX
353 #define INT_FAST32_MIN LONG_MIN
354 #define INT_FAST32_MAX LONG_MAX
355 #define UINT_FAST32_MAX ULONG_MAX
357 #undef INT_FAST64_MIN
358 #undef INT_FAST64_MAX
360 # define INT_FAST64_MIN INT64_MIN
361 # define INT_FAST64_MAX INT64_MAX
364 #undef UINT_FAST64_MAX
366 # define UINT_FAST64_MAX UINT64_MAX
369 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
374 #define INTPTR_MIN LONG_MIN
375 #define INTPTR_MAX LONG_MAX
376 #define UINTPTR_MAX ULONG_MAX
378 /* 7.18.2.5. Limits of greatest-width integer types */
383 # define INTMAX_MIN INT64_MIN
384 # define INTMAX_MAX INT64_MAX
386 # define INTMAX_MIN INT32_MIN
387 # define INTMAX_MAX INT32_MAX
392 # define UINTMAX_MAX UINT64_MAX
394 # define UINTMAX_MAX UINT32_MAX
397 /* 7.18.3. Limits of other integer types */
399 /* ptrdiff_t limits */
402 #define PTRDIFF_MIN \
403 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
404 #define PTRDIFF_MAX \
405 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
407 /* sig_atomic_t limits */
408 #undef SIG_ATOMIC_MIN
409 #undef SIG_ATOMIC_MAX
410 #define SIG_ATOMIC_MIN \
411 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
412 0@SIG_ATOMIC_T_SUFFIX@)
413 #define SIG_ATOMIC_MAX \
414 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
415 0@SIG_ATOMIC_T_SUFFIX@)
420 #define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
426 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
428 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
434 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
436 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
438 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
440 /* 7.18.4. Macros for integer constants */
442 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
444 /* 7.18.4.1. Macros for minimum-width integer constants */
445 /* According to ISO C 99 Technical Corrigendum 1 */
447 /* Here we assume a standard architecture where the hardware integer
448 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
458 #define UINT16_C(x) x
463 #define UINT32_C(x) x ## U
467 #if LONG_MAX >> 31 >> 31 == 1
468 # define INT64_C(x) x##L
469 #elif defined _MSC_VER
470 # define INT64_C(x) x##i64
471 #elif @HAVE_LONG_LONG_INT@
472 # define INT64_C(x) x##LL
474 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
475 # define UINT64_C(x) x##UL
476 #elif defined _MSC_VER
477 # define UINT64_C(x) x##ui64
478 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
479 # define UINT64_C(x) x##ULL
482 /* 7.18.4.2. Macros for greatest-width integer constants */
485 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
486 # define INTMAX_C(x) x##LL
487 #elif defined GL_INT64_T
488 # define INTMAX_C(x) INT64_C(x)
490 # define INTMAX_C(x) x##L
494 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
495 # define UINTMAX_C(x) x##ULL
496 #elif defined GL_UINT64_T
497 # define UINTMAX_C(x) UINT64_C(x)
499 # define UINTMAX_C(x) x##UL
502 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
504 #endif /* _GL_STDINT_H */