1 /* Copyright (C) 2001-2002, 2004-2006 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. */
35 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
36 IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>). */
37 #if @HAVE_SYS_TYPES_H@
38 # include <sys/types.h>
41 /* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
45 # if defined __sgi && ! defined __c99
46 /* Bypass IRIX's <stdint.h> if in C89 mode, since it merely annoys users
47 with "This header file is to be used only for c99 mode compilations"
51 /* Other systems may have an incomplete or buggy <stdint.h>.
52 Include it before <inttypes.h>, since any "#include <stdint.h>"
53 in <inttypes.h> would reinclude us, skipping our contents because
54 _GL_STDINT_H is defined. */
55 # include @FULL_PATH_STDINT_H@
59 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
60 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
61 <inttypes.h> also defines intptr_t and uintptr_t. */
62 # include <inttypes.h>
65 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
66 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
67 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
68 included by <sys/types.h>. */
69 # include <sys/bitypes.h>
72 #if @HAVE_SYS_INTTYPES_H@ && !@HAVE_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 But note that <sys/int_types.h> contains only the type definitions! */
76 # include <sys/inttypes.h>
79 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
81 /* Get WCHAR_MIN, WCHAR_MAX. */
82 # if @HAVE_WCHAR_H@ && ! (defined WCHAR_MIN && defined WCHAR_MAX)
83 /* BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
92 /* Minimum and maximum values for a integer type under the usual assumption.
93 Return an unspecified value if BITS == 0, adding a check to pacify
96 #define _STDINT_MIN(signed, bits, zero) \
97 ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
99 #define _STDINT_MAX(signed, bits, zero) \
101 ? ~ _STDINT_MIN (signed, bits, zero) \
102 : ((((zero) + 1) << ((bits) ? (bits) - 1 : 0)) - 1) * 2 + 1)
104 /* 7.18.1.1. Exact-width integer types */
106 /* Here we assume a standard architecture where the hardware integer
107 types have 8, 16, 32, optionally 64 bits. */
111 #define int8_t signed char
112 #define uint8_t unsigned char
116 #define int16_t short int
117 #define uint16_t unsigned short int
122 #define uint32_t unsigned int
126 #if LONG_MAX >> 31 >> 31 == 1
127 # define int64_t long int
128 # define uint64_t unsigned long int
129 #elif defined _MSC_VER
130 # define int64_t __int64
131 # define uint64_t unsigned __int64
132 #elif @HAVE_LONG_LONG_INT@
133 # define int64_t long long int
134 # define uint64_t unsigned long long int
137 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
143 /* 7.18.1.2. Minimum-width integer types */
145 /* Here we assume a standard architecture where the hardware integer
146 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
147 are the same as the corresponding N_t types. */
152 #undef uint_least16_t
154 #undef uint_least32_t
156 #undef uint_least64_t
157 #define int_least8_t int8_t
158 #define uint_least8_t uint8_t
159 #define int_least16_t int16_t
160 #define uint_least16_t uint16_t
161 #define int_least32_t int32_t
162 #define uint_least32_t uint32_t
164 # define int_least64_t int64_t
165 # define uint_least64_t uint64_t
168 /* 7.18.1.3. Fastest minimum-width integer types */
170 /* Note: Other <stdint.h> substitutes may define these types differently.
171 It is not recommended to use these types in public header files. */
173 /* Here we assume a standard architecture where the hardware integer
174 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
175 are taken from the same list of types. Assume that 'long int'
176 is fast enough for all narrower integers. */
186 #define int_fast8_t long int
187 #define uint_fast8_t unsigned int_fast8_t
188 #define int_fast16_t long int
189 #define uint_fast16_t unsigned int_fast16_t
190 #define int_fast32_t long int
191 #define uint_fast32_t unsigned int_fast32_t
193 # define int_fast64_t int64_t
194 # define uint_fast64_t uint64_t
197 /* 7.18.1.4. Integer types capable of holding object pointers */
201 #define intptr_t long int
202 #define uintptr_t unsigned long int
204 /* 7.18.1.5. Greatest-width integer types */
206 /* Note: These types are compiler dependent. It may be unwise to use them in
207 public header files. */
211 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
212 # define intmax_t long long int
213 # define uintmax_t unsigned long long int
214 #elif defined int64_t
215 # define intmax_t int64_t
216 # define uintmax_t uint64_t
218 # define intmax_t long int
219 # define uintmax_t unsigned long int
222 /* 7.18.2. Limits of specified-width integer types */
224 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
226 /* 7.18.2.1. Limits of exact-width integer types */
228 /* Here we assume a standard architecture where the hardware integer
229 types have 8, 16, 32, optionally 64 bits. */
234 #define INT8_MIN (~ INT8_MAX)
236 #define UINT8_MAX 255
241 #define INT16_MIN (~ INT16_MAX)
242 #define INT16_MAX 32767
243 #define UINT16_MAX 65535
248 #define INT32_MIN (~ INT32_MAX)
249 #define INT32_MAX 2147483647
250 #define UINT32_MAX 4294967295U
256 # define INT64_MIN (~ INT64_MAX)
257 # define INT64_MAX INTMAX_C (9223372036854775807)
258 # define UINT64_MAX UINTMAX_C (18446744073709551615)
261 /* 7.18.2.2. Limits of minimum-width integer types */
263 /* Here we assume a standard architecture where the hardware integer
264 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
265 are the same as the corresponding N_t types. */
267 #undef INT_LEAST8_MIN
268 #undef INT_LEAST8_MAX
269 #undef UINT_LEAST8_MAX
270 #define INT_LEAST8_MIN INT8_MIN
271 #define INT_LEAST8_MAX INT8_MAX
272 #define UINT_LEAST8_MAX UINT8_MAX
274 #undef INT_LEAST16_MIN
275 #undef INT_LEAST16_MAX
276 #undef UINT_LEAST16_MAX
277 #define INT_LEAST16_MIN INT16_MIN
278 #define INT_LEAST16_MAX INT16_MAX
279 #define UINT_LEAST16_MAX UINT16_MAX
281 #undef INT_LEAST32_MIN
282 #undef INT_LEAST32_MAX
283 #undef UINT_LEAST32_MAX
284 #define INT_LEAST32_MIN INT32_MIN
285 #define INT_LEAST32_MAX INT32_MAX
286 #define UINT_LEAST32_MAX UINT32_MAX
288 #undef INT_LEAST64_MIN
289 #undef INT_LEAST64_MAX
290 #undef UINT_LEAST64_MAX
292 # define INT_LEAST64_MIN INT64_MIN
293 # define INT_LEAST64_MAX INT64_MAX
294 # define UINT_LEAST64_MAX UINT64_MAX
297 /* 7.18.2.3. Limits of fastest minimum-width integer types */
299 /* Here we assume a standard architecture where the hardware integer
300 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
301 are taken from the same list of types. */
305 #undef UINT_FAST8_MAX
306 #define INT_FAST8_MIN LONG_MIN
307 #define INT_FAST8_MAX LONG_MAX
308 #define UINT_FAST8_MAX ULONG_MAX
310 #undef INT_FAST16_MIN
311 #undef INT_FAST16_MAX
312 #undef UINT_FAST16_MAX
313 #define INT_FAST16_MIN LONG_MIN
314 #define INT_FAST16_MAX LONG_MAX
315 #define UINT_FAST16_MAX ULONG_MAX
317 #undef INT_FAST32_MIN
318 #undef INT_FAST32_MAX
319 #undef UINT_FAST32_MAX
320 #define INT_FAST32_MIN LONG_MIN
321 #define INT_FAST32_MAX LONG_MAX
322 #define UINT_FAST32_MAX ULONG_MAX
324 #undef INT_FAST64_MIN
325 #undef INT_FAST64_MAX
326 #undef UINT_FAST64_MAX
328 # define INT_FAST64_MIN INT64_MIN
329 # define INT_FAST64_MAX INT64_MAX
330 # define UINT_FAST64_MAX UINT64_MAX
333 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
338 #define INTPTR_MIN LONG_MIN
339 #define INTPTR_MAX LONG_MAX
340 #define UINTPTR_MAX ULONG_MAX
342 /* 7.18.2.5. Limits of greatest-width integer types */
347 #define INTMAX_MIN (~ INTMAX_MAX)
349 # define INTMAX_MAX INT64_MAX
350 # define UINTMAX_MAX UINT64_MAX
352 # define INTMAX_MAX INT32_MAX
353 # define UINTMAX_MAX UINT32_MAX
356 /* 7.18.3. Limits of other integer types */
358 /* ptrdiff_t limits */
361 #define PTRDIFF_MIN \
362 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
363 #define PTRDIFF_MAX \
364 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
366 /* sig_atomic_t limits */
367 #undef SIG_ATOMIC_MIN
368 #undef SIG_ATOMIC_MAX
369 #define SIG_ATOMIC_MIN \
370 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
371 0@SIG_ATOMIC_T_SUFFIX@)
372 #define SIG_ATOMIC_MAX \
373 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
374 0@SIG_ATOMIC_T_SUFFIX@)
379 #define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
385 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
387 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
393 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
395 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
397 /* 7.18.4. Macros for integer constants */
399 /* 7.18.4.1. Macros for minimum-width integer constants */
400 /* According to ISO C 99 Technical Corrigendum 1 */
402 /* Here we assume a standard architecture where the hardware integer
403 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
413 #define UINT16_C(x) x
418 #define UINT32_C(x) x ## U
422 #if LONG_MAX >> 31 >> 31 == 1
423 # define INT64_C(x) x##L
424 # define UINT64_C(x) x##UL
425 #elif defined _MSC_VER
426 # define INT64_C(x) x##i64
427 # define UINT64_C(x) x##ui64
428 #elif @HAVE_LONG_LONG_INT@
429 # define INT64_C(x) x##LL
430 # define UINT64_C(x) x##ULL
433 /* 7.18.4.2. Macros for greatest-width integer constants */
437 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
438 # define INTMAX_C(x) x##LL
439 # define UINTMAX_C(x) x##ULL
440 #elif defined int64_t
441 # define INTMAX_C(x) INT64_C(x)
442 # define UINTMAX_C(x) UINT64_C(x)
444 # define INTMAX_C(x) x##L
445 # define UINTMAX_C(x) x##UL
448 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
450 #endif /* _GL_STDINT_H */