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. */
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 MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
52 relies on the system <stdint.h> definitions, so include
53 <sys/types.h> after @ABSOLUTE_STDINT_H@. */
54 #if @HAVE_SYS_TYPES_H@
55 # include <sys/types.h>
58 /* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
62 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
63 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
64 <inttypes.h> also defines intptr_t and uintptr_t. */
65 # define _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
66 # include <inttypes.h>
67 # undef _GL_JUST_INCLUDE_ABSOLUTE_INTTYPES_H
68 #elif @HAVE_SYS_INTTYPES_H@
69 /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
70 the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
71 # include <sys/inttypes.h>
74 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
75 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
76 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
77 included by <sys/types.h>. */
78 # include <sys/bitypes.h>
81 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
83 /* Get WCHAR_MIN, WCHAR_MAX. */
84 # if @HAVE_WCHAR_H@ && ! (defined WCHAR_MIN && defined WCHAR_MAX)
85 /* BSD/OS 4.1 has a bug: <stdio.h> and <time.h> must be included before
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
128 #if LONG_MAX >> 31 >> 31 == 1
129 # define int64_t long int
130 # define uint64_t unsigned long int
131 #elif defined _MSC_VER
132 # define int64_t __int64
133 # define uint64_t unsigned __int64
134 #elif @HAVE_LONG_LONG_INT@
135 # define int64_t long long int
136 # define uint64_t unsigned long long int
139 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
145 /* 7.18.1.2. Minimum-width integer types */
147 /* Here we assume a standard architecture where the hardware integer
148 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
149 are the same as the corresponding N_t types. */
154 #undef uint_least16_t
156 #undef uint_least32_t
158 #undef uint_least64_t
159 #define int_least8_t int8_t
160 #define uint_least8_t uint8_t
161 #define int_least16_t int16_t
162 #define uint_least16_t uint16_t
163 #define int_least32_t int32_t
164 #define uint_least32_t uint32_t
166 # define int_least64_t int64_t
167 # define uint_least64_t uint64_t
170 /* 7.18.1.3. Fastest minimum-width integer types */
172 /* Note: Other <stdint.h> substitutes may define these types differently.
173 It is not recommended to use these types in public header files. */
175 /* Here we assume a standard architecture where the hardware integer
176 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
177 are taken from the same list of types. Assume that 'long int'
178 is fast enough for all narrower integers. */
188 #define int_fast8_t long int
189 #define uint_fast8_t unsigned int_fast8_t
190 #define int_fast16_t long int
191 #define uint_fast16_t unsigned int_fast16_t
192 #define int_fast32_t long int
193 #define uint_fast32_t unsigned int_fast32_t
195 # define int_fast64_t int64_t
196 # define uint_fast64_t uint64_t
199 /* 7.18.1.4. Integer types capable of holding object pointers */
203 #define intptr_t long int
204 #define uintptr_t unsigned long int
206 /* 7.18.1.5. Greatest-width integer types */
208 /* Note: These types are compiler dependent. It may be unwise to use them in
209 public header files. */
213 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
214 # define intmax_t long long int
215 # define uintmax_t unsigned long long int
216 #elif defined int64_t
217 # define intmax_t int64_t
218 # define uintmax_t uint64_t
220 # define intmax_t long int
221 # define uintmax_t unsigned long int
224 /* 7.18.2. Limits of specified-width integer types */
226 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
228 /* 7.18.2.1. Limits of exact-width integer types */
230 /* Here we assume a standard architecture where the hardware integer
231 types have 8, 16, 32, optionally 64 bits. */
236 #define INT8_MIN (~ INT8_MAX)
238 #define UINT8_MAX 255
243 #define INT16_MIN (~ INT16_MAX)
244 #define INT16_MAX 32767
245 #define UINT16_MAX 65535
250 #define INT32_MIN (~ INT32_MAX)
251 #define INT32_MAX 2147483647
252 #define UINT32_MAX 4294967295U
258 # define INT64_MIN (~ INT64_MAX)
259 # define INT64_MAX INTMAX_C (9223372036854775807)
260 # define UINT64_MAX UINTMAX_C (18446744073709551615)
263 /* 7.18.2.2. Limits of minimum-width integer types */
265 /* Here we assume a standard architecture where the hardware integer
266 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
267 are the same as the corresponding N_t types. */
269 #undef INT_LEAST8_MIN
270 #undef INT_LEAST8_MAX
271 #undef UINT_LEAST8_MAX
272 #define INT_LEAST8_MIN INT8_MIN
273 #define INT_LEAST8_MAX INT8_MAX
274 #define UINT_LEAST8_MAX UINT8_MAX
276 #undef INT_LEAST16_MIN
277 #undef INT_LEAST16_MAX
278 #undef UINT_LEAST16_MAX
279 #define INT_LEAST16_MIN INT16_MIN
280 #define INT_LEAST16_MAX INT16_MAX
281 #define UINT_LEAST16_MAX UINT16_MAX
283 #undef INT_LEAST32_MIN
284 #undef INT_LEAST32_MAX
285 #undef UINT_LEAST32_MAX
286 #define INT_LEAST32_MIN INT32_MIN
287 #define INT_LEAST32_MAX INT32_MAX
288 #define UINT_LEAST32_MAX UINT32_MAX
290 #undef INT_LEAST64_MIN
291 #undef INT_LEAST64_MAX
292 #undef UINT_LEAST64_MAX
294 # define INT_LEAST64_MIN INT64_MIN
295 # define INT_LEAST64_MAX INT64_MAX
296 # define UINT_LEAST64_MAX UINT64_MAX
299 /* 7.18.2.3. Limits of fastest 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 fastN_t types
303 are taken from the same list of types. */
307 #undef UINT_FAST8_MAX
308 #define INT_FAST8_MIN LONG_MIN
309 #define INT_FAST8_MAX LONG_MAX
310 #define UINT_FAST8_MAX ULONG_MAX
312 #undef INT_FAST16_MIN
313 #undef INT_FAST16_MAX
314 #undef UINT_FAST16_MAX
315 #define INT_FAST16_MIN LONG_MIN
316 #define INT_FAST16_MAX LONG_MAX
317 #define UINT_FAST16_MAX ULONG_MAX
319 #undef INT_FAST32_MIN
320 #undef INT_FAST32_MAX
321 #undef UINT_FAST32_MAX
322 #define INT_FAST32_MIN LONG_MIN
323 #define INT_FAST32_MAX LONG_MAX
324 #define UINT_FAST32_MAX ULONG_MAX
326 #undef INT_FAST64_MIN
327 #undef INT_FAST64_MAX
328 #undef UINT_FAST64_MAX
330 # define INT_FAST64_MIN INT64_MIN
331 # define INT_FAST64_MAX INT64_MAX
332 # define UINT_FAST64_MAX UINT64_MAX
335 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
340 #define INTPTR_MIN LONG_MIN
341 #define INTPTR_MAX LONG_MAX
342 #define UINTPTR_MAX ULONG_MAX
344 /* 7.18.2.5. Limits of greatest-width integer types */
349 #define INTMAX_MIN (~ INTMAX_MAX)
351 # define INTMAX_MAX INT64_MAX
352 # define UINTMAX_MAX UINT64_MAX
354 # define INTMAX_MAX INT32_MAX
355 # define UINTMAX_MAX UINT32_MAX
358 /* 7.18.3. Limits of other integer types */
360 /* ptrdiff_t limits */
363 #define PTRDIFF_MIN \
364 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
365 #define PTRDIFF_MAX \
366 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
368 /* sig_atomic_t limits */
369 #undef SIG_ATOMIC_MIN
370 #undef SIG_ATOMIC_MAX
371 #define SIG_ATOMIC_MIN \
372 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
373 0@SIG_ATOMIC_T_SUFFIX@)
374 #define SIG_ATOMIC_MAX \
375 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
376 0@SIG_ATOMIC_T_SUFFIX@)
381 #define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
387 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
389 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
395 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
397 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
399 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
401 /* 7.18.4. Macros for integer constants */
403 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
405 /* 7.18.4.1. Macros for minimum-width integer constants */
406 /* According to ISO C 99 Technical Corrigendum 1 */
408 /* Here we assume a standard architecture where the hardware integer
409 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
419 #define UINT16_C(x) x
424 #define UINT32_C(x) x ## U
428 #if LONG_MAX >> 31 >> 31 == 1
429 # define INT64_C(x) x##L
430 # define UINT64_C(x) x##UL
431 #elif defined _MSC_VER
432 # define INT64_C(x) x##i64
433 # define UINT64_C(x) x##ui64
434 #elif @HAVE_LONG_LONG_INT@
435 # define INT64_C(x) x##LL
436 # define UINT64_C(x) x##ULL
439 /* 7.18.4.2. Macros for greatest-width integer constants */
443 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
444 # define INTMAX_C(x) x##LL
445 # define UINTMAX_C(x) x##ULL
446 #elif defined int64_t
447 # define INTMAX_C(x) INT64_C(x)
448 # define UINTMAX_C(x) UINT64_C(x)
450 # define INTMAX_C(x) x##L
451 # define UINTMAX_C(x) x##UL
454 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
456 #endif /* _GL_STDINT_H */