1 /* Copyright (C) 2001-2002, 2004-2011 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>
27 @PRAGMA_SYSTEM_HEADER@
31 /* When including a system file that in turn includes <inttypes.h>,
32 use the system <inttypes.h>, not our substitute. This avoids
33 problems with (for example) VMS, whose <sys/bitypes.h> includes
35 #define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
37 /* Get those types that are already defined in other system include
38 files, so that we can "#define int8_t signed char" below without
39 worrying about a later system include file containing a "typedef
40 signed char int8_t;" that will get messed up by our macro. Our
41 macros should all be consistent with the system versions, except
42 for the "fast" types and macros, which we recommend against using
43 in public interfaces due to compiler differences. */
46 # if defined __sgi && ! defined __c99
47 /* Bypass IRIX's <stdint.h> if in C89 mode, since it merely annoys users
48 with "This header file is to be used only for c99 mode compilations"
52 /* Other systems may have an incomplete or buggy <stdint.h>.
53 Include it before <inttypes.h>, since any "#include <stdint.h>"
54 in <inttypes.h> would reinclude us, skipping our contents because
55 _GL_STDINT_H is defined.
56 The include_next requires a split double-inclusion guard. */
57 # @INCLUDE_NEXT@ @NEXT_STDINT_H@
60 #if ! defined _GL_STDINT_H && ! defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H
63 /* <sys/types.h> defines some of the stdint.h types as well, on glibc,
64 IRIX 6.5, and OpenBSD 3.8 (via <machine/types.h>).
65 AIX 5.2 <sys/types.h> isn't needed and causes troubles.
66 MacOS X 10.4.6 <sys/types.h> includes <stdint.h> (which is us), but
67 relies on the system <stdint.h> definitions, so include
68 <sys/types.h> after @NEXT_STDINT_H@. */
69 #if @HAVE_SYS_TYPES_H@ && ! defined _AIX
70 # include <sys/types.h>
73 /* Get LONG_MIN, LONG_MAX, ULONG_MAX. */
77 /* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
78 int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
79 <inttypes.h> also defines intptr_t and uintptr_t. */
80 # include <inttypes.h>
81 #elif @HAVE_SYS_INTTYPES_H@
82 /* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
83 the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
84 # include <sys/inttypes.h>
87 #if @HAVE_SYS_BITYPES_H@ && ! defined __BIT_TYPES_DEFINED__
88 /* Linux libc4 >= 4.6.7 and libc5 have a <sys/bitypes.h> that defines
89 int{8,16,32,64}_t and __BIT_TYPES_DEFINED__. In libc5 >= 5.2.2 it is
90 included by <sys/types.h>. */
91 # include <sys/bitypes.h>
94 #undef _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
96 /* Minimum and maximum values for a integer type under the usual assumption.
97 Return an unspecified value if BITS == 0, adding a check to pacify
100 #define _STDINT_MIN(signed, bits, zero) \
101 ((signed) ? (- ((zero) + 1) << ((bits) ? (bits) - 1 : 0)) : (zero))
103 #define _STDINT_MAX(signed, bits, zero) \
105 ? ~ _STDINT_MIN (signed, bits, zero) \
106 : /* The expression for the unsigned case. The subtraction of (signed) \
107 is a nop in the unsigned case and avoids "signed integer overflow" \
108 warnings in the signed case. */ \
109 ((((zero) + 1) << ((bits) ? (bits) - 1 - (signed) : 0)) - 1) * 2 + 1)
111 /* 7.18.1.1. Exact-width integer types */
113 /* Here we assume a standard architecture where the hardware integer
114 types have 8, 16, 32, optionally 64 bits. */
118 typedef signed char gl_int8_t;
119 typedef unsigned char gl_uint8_t;
120 #define int8_t gl_int8_t
121 #define uint8_t gl_uint8_t
125 typedef short int gl_int16_t;
126 typedef unsigned short int gl_uint16_t;
127 #define int16_t gl_int16_t
128 #define uint16_t gl_uint16_t
132 typedef int gl_int32_t;
133 typedef unsigned int gl_uint32_t;
134 #define int32_t gl_int32_t
135 #define uint32_t gl_uint32_t
137 /* If the system defines INT64_MAX, assume int64_t works. That way,
138 if the underlying platform defines int64_t to be a 64-bit long long
139 int, the code below won't mistakenly define it to be a 64-bit long
140 int, which would mess up C++ name mangling. We must use #ifdef
141 rather than #if, to avoid an error with HP-UX 10.20 cc. */
146 /* Do not undefine int64_t if gnulib is not being used with 64-bit
147 types, since otherwise it breaks platforms like Tandem/NSK. */
148 # if LONG_MAX >> 31 >> 31 == 1
150 typedef long int gl_int64_t;
151 # define int64_t gl_int64_t
153 # elif defined _MSC_VER
155 typedef __int64 gl_int64_t;
156 # define int64_t gl_int64_t
158 # elif @HAVE_LONG_LONG_INT@
160 typedef long long int gl_int64_t;
161 # define int64_t gl_int64_t
169 # if ULONG_MAX >> 31 >> 31 >> 1 == 1
171 typedef unsigned long int gl_uint64_t;
172 # define uint64_t gl_uint64_t
174 # elif defined _MSC_VER
176 typedef unsigned __int64 gl_uint64_t;
177 # define uint64_t gl_uint64_t
179 # elif @HAVE_UNSIGNED_LONG_LONG_INT@
181 typedef unsigned long long int gl_uint64_t;
182 # define uint64_t gl_uint64_t
187 /* Avoid collision with Solaris 2.5.1 <pthread.h> etc. */
193 /* 7.18.1.2. Minimum-width integer types */
195 /* Here we assume a standard architecture where the hardware integer
196 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
197 are the same as the corresponding N_t types. */
202 #undef uint_least16_t
204 #undef uint_least32_t
206 #undef uint_least64_t
207 #define int_least8_t int8_t
208 #define uint_least8_t uint8_t
209 #define int_least16_t int16_t
210 #define uint_least16_t uint16_t
211 #define int_least32_t int32_t
212 #define uint_least32_t uint32_t
214 # define int_least64_t int64_t
217 # define uint_least64_t uint64_t
220 /* 7.18.1.3. Fastest minimum-width integer types */
222 /* Note: Other <stdint.h> substitutes may define these types differently.
223 It is not recommended to use these types in public header files. */
225 /* Here we assume a standard architecture where the hardware integer
226 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
227 are taken from the same list of types. Assume that 'long int'
228 is fast enough for all narrower integers. */
238 typedef long int gl_int_fast8_t;
239 typedef unsigned long int gl_uint_fast8_t;
240 typedef long int gl_int_fast16_t;
241 typedef unsigned long int gl_uint_fast16_t;
242 typedef long int gl_int_fast32_t;
243 typedef unsigned long int gl_uint_fast32_t;
244 #define int_fast8_t gl_int_fast8_t
245 #define uint_fast8_t gl_uint_fast8_t
246 #define int_fast16_t gl_int_fast16_t
247 #define uint_fast16_t gl_uint_fast16_t
248 #define int_fast32_t gl_int_fast32_t
249 #define uint_fast32_t gl_uint_fast32_t
251 # define int_fast64_t int64_t
254 # define uint_fast64_t uint64_t
257 /* 7.18.1.4. Integer types capable of holding object pointers */
261 typedef long int gl_intptr_t;
262 typedef unsigned long int gl_uintptr_t;
263 #define intptr_t gl_intptr_t
264 #define uintptr_t gl_uintptr_t
266 /* 7.18.1.5. Greatest-width integer types */
268 /* Note: These types are compiler dependent. It may be unwise to use them in
269 public header files. */
272 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
273 typedef long long int gl_intmax_t;
274 # define intmax_t gl_intmax_t
275 #elif defined GL_INT64_T
276 # define intmax_t int64_t
278 typedef long int gl_intmax_t;
279 # define intmax_t gl_intmax_t
283 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
284 typedef unsigned long long int gl_uintmax_t;
285 # define uintmax_t gl_uintmax_t
286 #elif defined GL_UINT64_T
287 # define uintmax_t uint64_t
289 typedef unsigned long int gl_uintmax_t;
290 # define uintmax_t gl_uintmax_t
293 /* Verify that intmax_t and uintmax_t have the same size. Too much code
294 breaks if this is not the case. If this check fails, the reason is likely
295 to be found in the autoconf macros. */
296 typedef int _verify_intmax_size[sizeof (intmax_t) == sizeof (uintmax_t)
299 /* 7.18.2. Limits of specified-width integer types */
301 #if ! defined __cplusplus || defined __STDC_LIMIT_MACROS
303 /* 7.18.2.1. Limits of exact-width integer types */
305 /* Here we assume a standard architecture where the hardware integer
306 types have 8, 16, 32, optionally 64 bits. */
311 #define INT8_MIN (~ INT8_MAX)
313 #define UINT8_MAX 255
318 #define INT16_MIN (~ INT16_MAX)
319 #define INT16_MAX 32767
320 #define UINT16_MAX 65535
325 #define INT32_MIN (~ INT32_MAX)
326 #define INT32_MAX 2147483647
327 #define UINT32_MAX 4294967295U
329 #if defined GL_INT64_T && ! defined INT64_MAX
330 /* Prefer (- INTMAX_C (1) << 63) over (~ INT64_MAX) because SunPRO C 5.0
331 evaluates the latter incorrectly in preprocessor expressions. */
332 # define INT64_MIN (- INTMAX_C (1) << 63)
333 # define INT64_MAX INTMAX_C (9223372036854775807)
336 #if defined GL_UINT64_T && ! defined UINT64_MAX
337 # define UINT64_MAX UINTMAX_C (18446744073709551615)
340 /* 7.18.2.2. Limits of minimum-width integer types */
342 /* Here we assume a standard architecture where the hardware integer
343 types have 8, 16, 32, optionally 64 bits. Therefore the leastN_t types
344 are the same as the corresponding N_t types. */
346 #undef INT_LEAST8_MIN
347 #undef INT_LEAST8_MAX
348 #undef UINT_LEAST8_MAX
349 #define INT_LEAST8_MIN INT8_MIN
350 #define INT_LEAST8_MAX INT8_MAX
351 #define UINT_LEAST8_MAX UINT8_MAX
353 #undef INT_LEAST16_MIN
354 #undef INT_LEAST16_MAX
355 #undef UINT_LEAST16_MAX
356 #define INT_LEAST16_MIN INT16_MIN
357 #define INT_LEAST16_MAX INT16_MAX
358 #define UINT_LEAST16_MAX UINT16_MAX
360 #undef INT_LEAST32_MIN
361 #undef INT_LEAST32_MAX
362 #undef UINT_LEAST32_MAX
363 #define INT_LEAST32_MIN INT32_MIN
364 #define INT_LEAST32_MAX INT32_MAX
365 #define UINT_LEAST32_MAX UINT32_MAX
367 #undef INT_LEAST64_MIN
368 #undef INT_LEAST64_MAX
370 # define INT_LEAST64_MIN INT64_MIN
371 # define INT_LEAST64_MAX INT64_MAX
374 #undef UINT_LEAST64_MAX
376 # define UINT_LEAST64_MAX UINT64_MAX
379 /* 7.18.2.3. Limits of fastest minimum-width integer types */
381 /* Here we assume a standard architecture where the hardware integer
382 types have 8, 16, 32, optionally 64 bits. Therefore the fastN_t types
383 are taken from the same list of types. */
387 #undef UINT_FAST8_MAX
388 #define INT_FAST8_MIN LONG_MIN
389 #define INT_FAST8_MAX LONG_MAX
390 #define UINT_FAST8_MAX ULONG_MAX
392 #undef INT_FAST16_MIN
393 #undef INT_FAST16_MAX
394 #undef UINT_FAST16_MAX
395 #define INT_FAST16_MIN LONG_MIN
396 #define INT_FAST16_MAX LONG_MAX
397 #define UINT_FAST16_MAX ULONG_MAX
399 #undef INT_FAST32_MIN
400 #undef INT_FAST32_MAX
401 #undef UINT_FAST32_MAX
402 #define INT_FAST32_MIN LONG_MIN
403 #define INT_FAST32_MAX LONG_MAX
404 #define UINT_FAST32_MAX ULONG_MAX
406 #undef INT_FAST64_MIN
407 #undef INT_FAST64_MAX
409 # define INT_FAST64_MIN INT64_MIN
410 # define INT_FAST64_MAX INT64_MAX
413 #undef UINT_FAST64_MAX
415 # define UINT_FAST64_MAX UINT64_MAX
418 /* 7.18.2.4. Limits of integer types capable of holding object pointers */
423 #define INTPTR_MIN LONG_MIN
424 #define INTPTR_MAX LONG_MAX
425 #define UINTPTR_MAX ULONG_MAX
427 /* 7.18.2.5. Limits of greatest-width integer types */
432 # define INTMAX_MIN INT64_MIN
433 # define INTMAX_MAX INT64_MAX
435 # define INTMAX_MIN INT32_MIN
436 # define INTMAX_MAX INT32_MAX
441 # define UINTMAX_MAX UINT64_MAX
443 # define UINTMAX_MAX UINT32_MAX
446 /* 7.18.3. Limits of other integer types */
448 /* ptrdiff_t limits */
451 #if @APPLE_UNIVERSAL_BUILD@
453 # define PTRDIFF_MIN _STDINT_MIN (1, 64, 0l)
454 # define PTRDIFF_MAX _STDINT_MAX (1, 64, 0l)
456 # define PTRDIFF_MIN _STDINT_MIN (1, 32, 0)
457 # define PTRDIFF_MAX _STDINT_MAX (1, 32, 0)
460 # define PTRDIFF_MIN \
461 _STDINT_MIN (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
462 # define PTRDIFF_MAX \
463 _STDINT_MAX (1, @BITSIZEOF_PTRDIFF_T@, 0@PTRDIFF_T_SUFFIX@)
466 /* sig_atomic_t limits */
467 #undef SIG_ATOMIC_MIN
468 #undef SIG_ATOMIC_MAX
469 #define SIG_ATOMIC_MIN \
470 _STDINT_MIN (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
471 0@SIG_ATOMIC_T_SUFFIX@)
472 #define SIG_ATOMIC_MAX \
473 _STDINT_MAX (@HAVE_SIGNED_SIG_ATOMIC_T@, @BITSIZEOF_SIG_ATOMIC_T@, \
474 0@SIG_ATOMIC_T_SUFFIX@)
479 #if @APPLE_UNIVERSAL_BUILD@
481 # define SIZE_MAX _STDINT_MAX (0, 64, 0ul)
483 # define SIZE_MAX _STDINT_MAX (0, 32, 0ul)
486 # define SIZE_MAX _STDINT_MAX (0, @BITSIZEOF_SIZE_T@, 0@SIZE_T_SUFFIX@)
490 /* Get WCHAR_MIN, WCHAR_MAX.
491 This include is not on the top, above, because on OSF/1 4.0 we have a
492 sequence of nested includes
493 <wchar.h> -> <stdio.h> -> <getopt.h> -> <stdlib.h>, and the latter includes
494 <stdint.h> and assumes its types are already defined. */
495 #if ! (defined WCHAR_MIN && defined WCHAR_MAX)
496 # define _GL_JUST_INCLUDE_SYSTEM_WCHAR_H
498 # undef _GL_JUST_INCLUDE_SYSTEM_WCHAR_H
503 _STDINT_MIN (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
505 _STDINT_MAX (@HAVE_SIGNED_WCHAR_T@, @BITSIZEOF_WCHAR_T@, 0@WCHAR_T_SUFFIX@)
511 _STDINT_MIN (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
513 _STDINT_MAX (@HAVE_SIGNED_WINT_T@, @BITSIZEOF_WINT_T@, 0@WINT_T_SUFFIX@)
515 #endif /* !defined __cplusplus || defined __STDC_LIMIT_MACROS */
517 /* 7.18.4. Macros for integer constants */
519 #if ! defined __cplusplus || defined __STDC_CONSTANT_MACROS
521 /* 7.18.4.1. Macros for minimum-width integer constants */
522 /* According to ISO C 99 Technical Corrigendum 1 */
524 /* Here we assume a standard architecture where the hardware integer
525 types have 8, 16, 32, optionally 64 bits, and int is 32 bits. */
535 #define UINT16_C(x) x
540 #define UINT32_C(x) x ## U
544 #if LONG_MAX >> 31 >> 31 == 1
545 # define INT64_C(x) x##L
546 #elif defined _MSC_VER
547 # define INT64_C(x) x##i64
548 #elif @HAVE_LONG_LONG_INT@
549 # define INT64_C(x) x##LL
551 #if ULONG_MAX >> 31 >> 31 >> 1 == 1
552 # define UINT64_C(x) x##UL
553 #elif defined _MSC_VER
554 # define UINT64_C(x) x##ui64
555 #elif @HAVE_UNSIGNED_LONG_LONG_INT@
556 # define UINT64_C(x) x##ULL
559 /* 7.18.4.2. Macros for greatest-width integer constants */
562 #if @HAVE_LONG_LONG_INT@ && LONG_MAX >> 30 == 1
563 # define INTMAX_C(x) x##LL
564 #elif defined GL_INT64_T
565 # define INTMAX_C(x) INT64_C(x)
567 # define INTMAX_C(x) x##L
571 #if @HAVE_UNSIGNED_LONG_LONG_INT@ && ULONG_MAX >> 31 == 1
572 # define UINTMAX_C(x) x##ULL
573 #elif defined GL_UINT64_T
574 # define UINTMAX_C(x) UINT64_C(x)
576 # define UINTMAX_C(x) x##UL
579 #endif /* !defined __cplusplus || defined __STDC_CONSTANT_MACROS */
581 #endif /* _GL_STDINT_H */
582 #endif /* !defined _GL_STDINT_H && !defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H */