stdint.h revision 199512
1193326Sed/*===---- stdint.h - Standard header for sized integer types --------------===*\
2193326Sed *
3193326Sed * Copyright (c) 2009 Chris Lattner
4193326Sed *
5193326Sed * Permission is hereby granted, free of charge, to any person obtaining a copy
6193326Sed * of this software and associated documentation files (the "Software"), to deal
7193326Sed * in the Software without restriction, including without limitation the rights
8193326Sed * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9193326Sed * copies of the Software, and to permit persons to whom the Software is
10193326Sed * furnished to do so, subject to the following conditions:
11193326Sed *
12193326Sed * The above copyright notice and this permission notice shall be included in
13193326Sed * all copies or substantial portions of the Software.
14193326Sed *
15193326Sed * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16193326Sed * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17193326Sed * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18193326Sed * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19193326Sed * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20193326Sed * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21193326Sed * THE SOFTWARE.
22193326Sed *
23193326Sed\*===----------------------------------------------------------------------===*/
24193326Sed
25193326Sed#ifndef __CLANG_STDINT_H
26193326Sed#define __CLANG_STDINT_H
27193326Sed
28193326Sed/* If we're hosted, fall back to the system's stdint.h, which might have
29193326Sed * additional definitions.
30193326Sed */
31198893Srdivacky#if __STDC_HOSTED__ && \
32198893Srdivacky    defined(__has_include_next) && __has_include_next(<stdint.h>)
33193326Sed# include_next <stdint.h>
34193326Sed#else
35193326Sed
36193326Sed/* C99 7.18.1.1 Exact-width integer types.
37193326Sed * C99 7.18.1.2 Minimum-width integer types.
38193326Sed * C99 7.18.1.3 Fastest minimum-width integer types.
39199482Srdivacky *
40199482Srdivacky * The standard requires that exact-width type be defined for 8-, 16-, 32-, and
41199482Srdivacky * 64-bit types if they are implemented. Other exact width types are optional.
42199482Srdivacky * This implementation defines an exact-width types for every integer width
43199482Srdivacky * that is represented in the standard integer types.
44199482Srdivacky *
45199482Srdivacky * The standard also requires minimum-width types be defined for 8-, 16-, 32-,
46199482Srdivacky * and 64-bit widths regardless of whether there are corresponding exact-width
47199482Srdivacky * types.
48199482Srdivacky *
49199482Srdivacky * To accomodate targets that are missing types that are exactly 8, 16, 32, or
50199482Srdivacky * 64 bits wide, this implementation takes an approach of cascading
51199482Srdivacky * redefintions, redefining __int_leastN_t to successively smaller exact-width
52199482Srdivacky * types. It is therefore important that the types are defined in order of
53199482Srdivacky * descending widths.
54199482Srdivacky *
55199482Srdivacky * We currently assume that the minimum-width types and the fastest
56199482Srdivacky * minimum-width types are the same. This is allowed by the standard, but is
57199482Srdivacky * suboptimal.
58199482Srdivacky *
59199482Srdivacky * In violation of the standard, some targets do not implement a type that is
60199482Srdivacky * wide enough to represent all of the required widths (8-, 16-, 32-, 64-bit).
61199482Srdivacky * To accomodate these targets, a required minimum-width type is only
62199482Srdivacky * defined if there exists an exact-width type of equal or greater width.
63193326Sed */
64193326Sed
65198954Srdivacky#ifdef __INT64_TYPE__
66199482Srdivacky# ifndef __int8_t_defined /* glibc sys/types.h also defines int64_t*/
67199482Srdivackytypedef signed __INT64_TYPE__ int64_t;
68199482Srdivacky# endif /* __int8_t_defined */
69198954Srdivackytypedef unsigned __INT64_TYPE__ uint64_t;
70199482Srdivacky# define __int_least64_t int64_t
71199482Srdivacky# define __uint_least64_t uint64_t
72199482Srdivacky# define __int_least32_t int64_t
73199482Srdivacky# define __uint_least32_t uint64_t
74199482Srdivacky# define __int_least16_t int64_t
75199482Srdivacky# define __uint_least16_t uint64_t
76199482Srdivacky# define __int_least8_t int64_t
77199482Srdivacky# define __uint_least8_t uint64_t
78199482Srdivacky#endif /* __INT64_TYPE__ */
79193326Sed
80199482Srdivacky#ifdef __int_least64_t
81199482Srdivackytypedef __int_least64_t int_least64_t;
82199482Srdivackytypedef __uint_least64_t uint_least64_t;
83199482Srdivackytypedef __int_least64_t int_fast64_t;
84199482Srdivackytypedef __uint_least64_t uint_fast64_t;
85199482Srdivacky#endif /* __int_least64_t */
86199482Srdivacky
87199482Srdivacky#ifdef __INT56_TYPE__
88199482Srdivackytypedef signed __INT56_TYPE__ int56_t;
89199482Srdivackytypedef unsigned __INT56_TYPE__ uint56_t;
90199482Srdivackytypedef int56_t int_least56_t;
91199482Srdivackytypedef uint56_t uint_least56_t;
92199482Srdivackytypedef int56_t int_fast56_t;
93199482Srdivackytypedef uint56_t uint_fast56_t;
94199482Srdivacky# define __int_least32_t int56_t
95199482Srdivacky# define __uint_least32_t uint56_t
96199482Srdivacky# define __int_least16_t int56_t
97199482Srdivacky# define __uint_least16_t uint56_t
98199482Srdivacky# define __int_least8_t int56_t
99199482Srdivacky# define __uint_least8_t uint56_t
100199482Srdivacky#endif /* __INT56_TYPE__ */
101199482Srdivacky
102199482Srdivacky
103199482Srdivacky#ifdef __INT48_TYPE__
104199482Srdivackytypedef signed __INT48_TYPE__ int48_t;
105199482Srdivackytypedef unsigned __INT48_TYPE__ uint48_t;
106199482Srdivackytypedef int48_t int_least48_t;
107199482Srdivackytypedef uint48_t uint_least48_t;
108199482Srdivackytypedef int48_t int_fast48_t;
109199482Srdivackytypedef uint48_t uint_fast48_t;
110199482Srdivacky# define __int_least32_t int48_t
111199482Srdivacky# define __uint_least32_t uint48_t
112199482Srdivacky# define __int_least16_t int48_t
113199482Srdivacky# define __uint_least16_t uint48_t
114199482Srdivacky# define __int_least8_t int48_t
115199482Srdivacky# define __uint_least8_t uint48_t
116199482Srdivacky#endif /* __INT48_TYPE__ */
117199482Srdivacky
118199482Srdivacky
119199482Srdivacky#ifdef __INT40_TYPE__
120199482Srdivackytypedef signed __INT40_TYPE__ int40_t;
121199482Srdivackytypedef unsigned __INT40_TYPE__ uint40_t;
122199482Srdivackytypedef int40_t int_least40_t;
123199482Srdivackytypedef uint40_t uint_least40_t;
124199482Srdivackytypedef int40_t int_fast40_t;
125199482Srdivackytypedef uint40_t uint_fast40_t;
126199482Srdivacky# define __int_least32_t int40_t
127199482Srdivacky# define __uint_least32_t uint40_t
128199482Srdivacky# define __int_least16_t int40_t
129199482Srdivacky# define __uint_least16_t uint40_t
130199482Srdivacky# define __int_least8_t int40_t
131199482Srdivacky# define __uint_least8_t uint40_t
132199482Srdivacky#endif /* __INT40_TYPE__ */
133199482Srdivacky
134199482Srdivacky
135199482Srdivacky#ifdef __INT32_TYPE__
136199482Srdivacky
137199482Srdivacky# ifndef __int8_t_defined /* glibc sys/types.h also defines int32_t*/
138199482Srdivackytypedef signed __INT32_TYPE__ int32_t;
139199482Srdivacky# endif /* __int8_t_defined */
140199482Srdivacky
141199482Srdivacky# ifndef __uint32_t_defined  /* more glibc compatibility */
142199482Srdivacky# define __uint32_t_defined
143193326Sedtypedef unsigned __INT32_TYPE__ uint32_t;
144199482Srdivacky# endif /* __uint32_t_defined */
145193326Sed
146199482Srdivacky# define __int_least32_t int32_t
147199482Srdivacky# define __uint_least32_t uint32_t
148199482Srdivacky# define __int_least16_t int32_t
149199482Srdivacky# define __uint_least16_t uint32_t
150199482Srdivacky# define __int_least8_t int32_t
151199482Srdivacky# define __uint_least8_t uint32_t
152199482Srdivacky#endif /* __INT32_TYPE__ */
153198954Srdivacky
154199482Srdivacky#ifdef __int_least32_t
155199482Srdivackytypedef __int_least32_t int_least32_t;
156199482Srdivackytypedef __uint_least32_t uint_least32_t;
157199482Srdivackytypedef __int_least32_t int_fast32_t;
158199482Srdivackytypedef __uint_least32_t uint_fast32_t;
159199482Srdivacky#endif /* __int_least32_t */
160199482Srdivacky
161199482Srdivacky#ifdef __INT24_TYPE__
162199482Srdivackytypedef signed __INT24_TYPE__ int24_t;
163199482Srdivackytypedef unsigned __INT24_TYPE__ uint24_t;
164199482Srdivackytypedef int24_t int_least24_t;
165199482Srdivackytypedef uint24_t uint_least24_t;
166199482Srdivackytypedef int24_t int_fast24_t;
167199482Srdivackytypedef uint24_t uint_fast24_t;
168199482Srdivacky# define __int_least16_t int24_t
169199482Srdivacky# define __uint_least16_t uint24_t
170199482Srdivacky# define __int_least8_t int24_t
171199482Srdivacky# define __uint_least8_t uint24_t
172199482Srdivacky#endif /* __INT24_TYPE__ */
173199482Srdivacky
174199482Srdivacky#ifdef __INT16_TYPE__
175199482Srdivacky#ifndef __int8_t_defined /* glibc sys/types.h also defines int16_t*/
176199482Srdivackytypedef signed __INT16_TYPE__ int16_t;
177199482Srdivacky#endif /* __int8_t_defined */
178198954Srdivackytypedef unsigned __INT16_TYPE__ uint16_t;
179199482Srdivacky# define __int_least16_t int16_t
180199482Srdivacky# define __uint_least16_t uint16_t
181199482Srdivacky# define __int_least8_t int16_t
182199482Srdivacky# define __uint_least8_t uint16_t
183199482Srdivacky#endif /* __INT16_TYPE__ */
184193326Sed
185199482Srdivacky#ifdef __int_least16_t
186199482Srdivackytypedef __int_least16_t int_least16_t;
187199482Srdivackytypedef __uint_least16_t uint_least16_t;
188199482Srdivackytypedef __int_least16_t int_fast16_t;
189199482Srdivackytypedef __uint_least16_t uint_fast16_t;
190199482Srdivacky#endif /* __int_least16_t */
191193326Sed
192199482Srdivacky
193199482Srdivacky#ifdef __INT8_TYPE__
194199482Srdivacky#ifndef __int8_t_defined  /* glibc sys/types.h also defines int8_t*/
195198954Srdivackytypedef signed __INT8_TYPE__ int8_t;
196199482Srdivacky#endif /* __int8_t_defined */
197198954Srdivackytypedef unsigned __INT8_TYPE__ uint8_t;
198199482Srdivacky# define __int_least8_t int8_t
199199482Srdivacky# define __uint_least8_t uint8_t
200199482Srdivacky#endif /* __INT8_TYPE__ */
201198954Srdivacky
202199482Srdivacky#ifdef __int_least8_t
203199482Srdivackytypedef __int_least8_t int_least8_t;
204199482Srdivackytypedef __uint_least8_t uint_least8_t;
205199482Srdivackytypedef __int_least8_t int_fast8_t;
206199482Srdivackytypedef __uint_least8_t uint_fast8_t;
207199482Srdivacky#endif /* __int_least8_t */
208199482Srdivacky
209198954Srdivacky/* prevent glibc sys/types.h from defining conflicting types */
210198954Srdivacky#ifndef __int8_t_defined
211198954Srdivacky# define __int8_t_defined
212198954Srdivacky#endif /* __int8_t_defined */
213198954Srdivacky
214193326Sed/* C99 7.18.1.4 Integer types capable of holding object pointers.
215193326Sed */
216199512Srdivacky#define __stdint_join3(a,b,c) a ## b ## c
217199512Srdivacky#define __stdint_exjoin3(a,b,c) __stdint_join3(a,b,c)
218199512Srdivacky
219193326Sed#ifndef __intptr_t_defined
220199512Srdivackytypedef __stdint_exjoin3( int, __INTPTR_WIDTH__, _t) intptr_t;
221193326Sed#define __intptr_t_defined
222193326Sed#endif
223199512Srdivackytypedef __stdint_exjoin3(uint, __INTPTR_WIDTH__, _t) uintptr_t;
224193326Sed
225193326Sed/* C99 7.18.1.5 Greatest-width integer types.
226193326Sed */
227199512Srdivackytypedef __stdint_exjoin3( int, __INTMAX_WIDTH__, _t) intmax_t;
228199512Srdivackytypedef __stdint_exjoin3(uint, __INTMAX_WIDTH__, _t) uintmax_t;
229193326Sed
230198954Srdivacky/* C99 7.18.4 Macros for minimum-width integer constants.
231198954Srdivacky *
232199482Srdivacky * The standard requires that integer constant macros be defined for all the
233199482Srdivacky * minimum-width types defined above. As 8-, 16-, 32-, and 64-bit minimum-width
234199482Srdivacky * types are required, the corresponding integer constant macros are defined
235199482Srdivacky * here. This implementation also defines minimum-width types for every other
236199482Srdivacky * integer width that the target implements, so corresponding macros are
237199482Srdivacky * defined below, too.
238199482Srdivacky *
239199482Srdivacky * These macros are defined using the same successive-shrinking approach as
240199482Srdivacky * the type definitions above. It is likewise important that macros are defined
241199482Srdivacky * in order of decending width.
242199482Srdivacky *
243198954Srdivacky * Note that C++ should not check __STDC_CONSTANT_MACROS here, contrary to the
244198954Srdivacky * claims of the C standard (see C++ 18.3.1p2, [cstdint.syn]).
245198954Srdivacky */
246198954Srdivacky
247199482Srdivacky#define __int_c_join(a, b) a ## b
248199482Srdivacky#define __int_c(v, suffix) __int_c_join(v, suffix)
249199482Srdivacky#define __uint_c(v, suffix) __int_c_join(v##U, suffix)
250199482Srdivacky
251199482Srdivacky
252198954Srdivacky#ifdef __INT64_TYPE__
253199482Srdivacky# ifdef __INT64_C_SUFFIX__
254199482Srdivacky#  define __int64_c_suffix __INT64_C_SUFFIX__
255199482Srdivacky#  define __int32_c_suffix __INT64_C_SUFFIX__
256199482Srdivacky#  define __int16_c_suffix __INT64_C_SUFFIX__
257199482Srdivacky#  define  __int8_c_suffix __INT64_C_SUFFIX__
258199482Srdivacky# else
259199482Srdivacky#  undef __int64_c_suffix
260199482Srdivacky#  undef __int32_c_suffix
261199482Srdivacky#  undef __int16_c_suffix
262199482Srdivacky#  undef  __int8_c_suffix
263199482Srdivacky# endif /* __INT64_C_SUFFIX__ */
264199482Srdivacky#endif /* __INT64_TYPE__ */
265198954Srdivacky
266199482Srdivacky#ifdef __int_least64_t
267199482Srdivacky# ifdef __int64_c_suffix
268199482Srdivacky#  define INT64_C(v) __int_c(v, __int64_c_suffix)
269199482Srdivacky#  define UINT64_C(v) __uint_c(v, __int64_c_suffix)
270199482Srdivacky# else
271199482Srdivacky#  define INT64_C(v) v
272199482Srdivacky#  define UINT64_C(v) v ## U
273199482Srdivacky# endif /* __int64_c_suffix */
274199482Srdivacky#endif /* __int_least64_t */
275198954Srdivacky
276199482Srdivacky
277199482Srdivacky#ifdef __INT56_TYPE__
278199482Srdivacky# ifdef __INT56_C_SUFFIX__
279199482Srdivacky#  define INT56_C(v) __int_c(v, __INT56_C_SUFFIX__)
280199482Srdivacky#  define UINT56_C(v) __uint_c(v, __INT56_C_SUFFIX__)
281199482Srdivacky#  define __int32_c_suffix __INT56_C_SUFFIX__
282199482Srdivacky#  define __int16_c_suffix __INT56_C_SUFFIX__
283199482Srdivacky#  define __int8_c_suffix  __INT56_C_SUFFIX__
284199482Srdivacky# else
285199482Srdivacky#  define INT56_C(v) v
286199482Srdivacky#  define UINT56_C(v) v ## U
287199482Srdivacky#  undef __int32_c_suffix
288199482Srdivacky#  undef __int16_c_suffix
289199482Srdivacky#  undef  __int8_c_suffix
290199482Srdivacky# endif /* __INT56_C_SUFFIX__ */
291199482Srdivacky#endif /* __INT56_TYPE__ */
292199482Srdivacky
293199482Srdivacky
294199482Srdivacky#ifdef __INT48_TYPE__
295199482Srdivacky# ifdef __INT48_C_SUFFIX__
296199482Srdivacky#  define INT48_C(v) __int_c(v, __INT48_C_SUFFIX__)
297199482Srdivacky#  define UINT48_C(v) __uint_c(v, __INT48_C_SUFFIX__)
298199482Srdivacky#  define __int32_c_suffix __INT48_C_SUFFIX__
299199482Srdivacky#  define __int16_c_suffix __INT48_C_SUFFIX__
300199482Srdivacky#  define __int8_c_suffix  __INT48_C_SUFFIX__
301199482Srdivacky# else
302199482Srdivacky#  define INT48_C(v) v
303199482Srdivacky#  define UINT48_C(v) v ## U
304199482Srdivacky#  undef __int32_c_suffix
305199482Srdivacky#  undef __int16_c_suffix
306199482Srdivacky#  undef  __int8_c_suffix
307199482Srdivacky# endif /* __INT48_C_SUFFIX__ */
308199482Srdivacky#endif /* __INT48_TYPE__ */
309199482Srdivacky
310199482Srdivacky
311199482Srdivacky#ifdef __INT40_TYPE__
312199482Srdivacky# ifdef __INT40_C_SUFFIX__
313199482Srdivacky#  define INT40_C(v) __int_c(v, __INT40_C_SUFFIX__)
314199482Srdivacky#  define UINT40_C(v) __uint_c(v, __INT40_C_SUFFIX__)
315199482Srdivacky#  define __int32_c_suffix __INT40_C_SUFFIX__
316199482Srdivacky#  define __int16_c_suffix __INT40_C_SUFFIX__
317199482Srdivacky#  define __int8_c_suffix  __INT40_C_SUFFIX__
318199482Srdivacky# else
319199482Srdivacky#  define INT40_C(v) v
320199482Srdivacky#  define UINT40_C(v) v ## U
321199482Srdivacky#  undef __int32_c_suffix
322199482Srdivacky#  undef __int16_c_suffix
323199482Srdivacky#  undef  __int8_c_suffix
324199482Srdivacky# endif /* __INT40_C_SUFFIX__ */
325199482Srdivacky#endif /* __INT40_TYPE__ */
326199482Srdivacky
327199482Srdivacky
328199482Srdivacky#ifdef __INT32_TYPE__
329199482Srdivacky# ifdef __INT32_C_SUFFIX__
330199482Srdivacky#  define __int32_c_suffix __INT32_C_SUFFIX__
331199482Srdivacky#  define __int16_c_suffix __INT32_C_SUFFIX__
332199482Srdivacky#  define __int8_c_suffix  __INT32_C_SUFFIX__
333199482Srdivacky#else
334199482Srdivacky#  undef __int32_c_suffix
335199482Srdivacky#  undef __int16_c_suffix
336199482Srdivacky#  undef  __int8_c_suffix
337199482Srdivacky# endif /* __INT32_C_SUFFIX__ */
338199482Srdivacky#endif /* __INT32_TYPE__ */
339199482Srdivacky
340199482Srdivacky#ifdef __int_least32_t
341199482Srdivacky# ifdef __int32_c_suffix
342199482Srdivacky#  define INT32_C(v) __int_c(v, __int32_c_suffix)
343199482Srdivacky#  define UINT32_C(v) __uint_c(v, __int32_c_suffix)
344199482Srdivacky# else
345199482Srdivacky#  define INT32_C(v) v
346199482Srdivacky#  define UINT32_C(v) v ## U
347199482Srdivacky# endif /* __int32_c_suffix */
348199482Srdivacky#endif /* __int_least32_t */
349199482Srdivacky
350199482Srdivacky
351199482Srdivacky#ifdef __INT24_TYPE__
352199482Srdivacky# ifdef __INT24_C_SUFFIX__
353199482Srdivacky#  define INT24_C(v) __int_c(v, __INT24_C_SUFFIX__)
354199482Srdivacky#  define UINT24_C(v) __uint_c(v, __INT24_C_SUFFIX__)
355199482Srdivacky#  define __int16_c_suffix __INT24_C_SUFFIX__
356199482Srdivacky#  define __int8_c_suffix  __INT24_C_SUFFIX__
357199482Srdivacky# else
358199482Srdivacky#  define INT24_C(v) v
359199482Srdivacky#  define UINT24_C(v) v ## U
360199482Srdivacky#  undef __int16_c_suffix
361199482Srdivacky#  undef  __int8_c_suffix
362199482Srdivacky# endif /* __INT24_C_SUFFIX__ */
363199482Srdivacky#endif /* __INT24_TYPE__ */
364199482Srdivacky
365199482Srdivacky
366199482Srdivacky#ifdef __INT16_TYPE__
367199482Srdivacky# ifdef __INT16_C_SUFFIX__
368199482Srdivacky#  define __int16_c_suffix __INT16_C_SUFFIX__
369199482Srdivacky#  define __int8_c_suffix  __INT16_C_SUFFIX__
370199482Srdivacky#else
371199482Srdivacky#  undef __int16_c_suffix
372199482Srdivacky#  undef  __int8_c_suffix
373199482Srdivacky# endif /* __INT16_C_SUFFIX__ */
374199482Srdivacky#endif /* __INT16_TYPE__ */
375199482Srdivacky
376199482Srdivacky#ifdef __int_least16_t
377199482Srdivacky# ifdef __int16_c_suffix
378199482Srdivacky#  define INT16_C(v) __int_c(v, __int16_c_suffix)
379199482Srdivacky#  define UINT16_C(v) __uint_c(v, __int16_c_suffix)
380199482Srdivacky# else
381199482Srdivacky#  define INT16_C(v) v
382199482Srdivacky#  define UINT16_C(v) v ## U
383199482Srdivacky# endif /* __int16_c_suffix */
384199482Srdivacky#endif /* __int_least16_t */
385199482Srdivacky
386199482Srdivacky
387199482Srdivacky#ifdef __INT8_TYPE__
388199482Srdivacky# ifdef __INT8_C_SUFFIX__
389199482Srdivacky#  define __int8_c_suffix __INT8_C_SUFFIX__
390199482Srdivacky#else
391199482Srdivacky#  undef  __int8_c_suffix
392199482Srdivacky# endif /* __INT8_C_SUFFIX__ */
393199482Srdivacky#endif /* __INT8_TYPE__ */
394199482Srdivacky
395199482Srdivacky#ifdef __int_least8_t
396199482Srdivacky# ifdef __int8_c_suffix
397199482Srdivacky#  define INT8_C(v) __int_c(v, __int8_c_suffix)
398199482Srdivacky#  define UINT8_C(v) __uint_c(v, __int8_c_suffix)
399199482Srdivacky# else
400199482Srdivacky#  define INT8_C(v) v
401199482Srdivacky#  define UINT8_C(v) v ## U
402199482Srdivacky# endif /* __int8_c_suffix */
403199482Srdivacky#endif /* __int_least8_t */
404199482Srdivacky
405199482Srdivacky
406193326Sed/* C99 7.18.2.1 Limits of exact-width integer types.
407193326Sed * C99 7.18.2.2 Limits of minimum-width integer types.
408193326Sed * C99 7.18.2.3 Limits of fastest minimum-width integer types.
409193326Sed *
410199482Srdivacky * The presence of limit macros are completely optional in C99.  This
411199482Srdivacky * implementation defines limits for all of the types (exact- and
412199482Srdivacky * minimum-width) that it defines above, using the limits of the minimum-width
413199482Srdivacky * type for any types that do not have exact-width representations.
414199482Srdivacky *
415199482Srdivacky * As in the type definitions, this section takes an approach of
416199482Srdivacky * successive-shrinking to determine which limits to use for the standard (8,
417199482Srdivacky * 16, 32, 64) bit widths when they don't have exact representations. It is
418199482Srdivacky * therefore important that the defintions be kept in order of decending
419199482Srdivacky * widths.
420199482Srdivacky *
421193326Sed * Note that C++ should not check __STDC_LIMIT_MACROS here, contrary to the
422193326Sed * claims of the C standard (see C++ 18.3.1p2, [cstdint.syn]).
423193326Sed */
424193326Sed
425193326Sed#ifdef __INT64_TYPE__
426199482Srdivacky# define INT64_MAX           INT64_C( 9223372036854775807)
427199482Srdivacky# define INT64_MIN         (-INT64_C( 9223372036854775807)-1)
428199482Srdivacky# define UINT64_MAX         UINT64_C(18446744073709551615)
429199482Srdivacky# define __INT_LEAST64_MIN   INT64_MIN
430199482Srdivacky# define __INT_LEAST64_MAX   INT64_MAX
431199482Srdivacky# define __UINT_LEAST64_MAX UINT64_MAX
432199482Srdivacky# define __INT_LEAST32_MIN   INT64_MIN
433199482Srdivacky# define __INT_LEAST32_MAX   INT64_MAX
434199482Srdivacky# define __UINT_LEAST32_MAX UINT64_MAX
435199482Srdivacky# define __INT_LEAST16_MIN   INT64_MIN
436199482Srdivacky# define __INT_LEAST16_MAX   INT64_MAX
437199482Srdivacky# define __UINT_LEAST16_MAX UINT64_MAX
438199482Srdivacky# define __INT_LEAST8_MIN    INT64_MIN
439199482Srdivacky# define __INT_LEAST8_MAX    INT64_MAX
440199482Srdivacky# define __UINT_LEAST8_MAX  UINT64_MAX
441199482Srdivacky#endif /* __INT64_TYPE__ */
442193326Sed
443199482Srdivacky#ifdef __INT_LEAST64_MIN
444199482Srdivacky# define INT_LEAST64_MIN   __INT_LEAST64_MIN
445199482Srdivacky# define INT_LEAST64_MAX   __INT_LEAST64_MAX
446199482Srdivacky# define UINT_LEAST64_MAX __UINT_LEAST64_MAX
447199482Srdivacky# define INT_FAST64_MIN    __INT_LEAST64_MIN
448199482Srdivacky# define INT_FAST64_MAX    __INT_LEAST64_MAX
449199482Srdivacky# define UINT_FAST64_MAX  __UINT_LEAST64_MAX
450199482Srdivacky#endif /* __INT_LEAST64_MIN */
451198954Srdivacky
452198954Srdivacky
453199482Srdivacky#ifdef __INT56_TYPE__
454199482Srdivacky# define INT56_MAX           INT56_C(36028797018963967)
455199482Srdivacky# define INT56_MIN         (-INT56_C(36028797018963967)-1)
456199482Srdivacky# define UINT56_MAX         UINT56_C(72057594037927935)
457199482Srdivacky# define INT_LEAST56_MIN     INT56_MIN
458199482Srdivacky# define INT_LEAST56_MAX     INT56_MAX
459199482Srdivacky# define UINT_LEAST56_MAX   UINT56_MAX
460199482Srdivacky# define INT_FAST56_MIN      INT56_MIN
461199482Srdivacky# define INT_FAST56_MAX      INT56_MAX
462199482Srdivacky# define UINT_FAST56_MAX    UINT56_MAX
463199482Srdivacky# define __INT_LEAST32_MIN   INT56_MIN
464199482Srdivacky# define __INT_LEAST32_MAX   INT56_MAX
465199482Srdivacky# define __UINT_LEAST32_MAX UINT56_MAX
466199482Srdivacky# define __INT_LEAST16_MIN   INT56_MIN
467199482Srdivacky# define __INT_LEAST16_MAX   INT56_MAX
468199482Srdivacky# define __UINT_LEAST16_MAX UINT56_MAX
469199482Srdivacky# define __INT_LEAST8_MIN    INT56_MIN
470199482Srdivacky# define __INT_LEAST8_MAX    INT56_MAX
471199482Srdivacky# define __UINT_LEAST8_MAX  UINT56_MAX
472199482Srdivacky#endif /* __INT56_TYPE__ */
473198954Srdivacky
474199482Srdivacky
475199482Srdivacky#ifdef __INT48_TYPE__
476199482Srdivacky# define INT48_MAX           INT48_C(140737488355327)
477199482Srdivacky# define INT48_MIN         (-INT48_C(140737488355327)-1)
478199482Srdivacky# define UINT48_MAX         UINT48_C(281474976710655)
479199482Srdivacky# define INT_LEAST48_MIN     INT48_MIN
480199482Srdivacky# define INT_LEAST48_MAX     INT48_MAX
481199482Srdivacky# define UINT_LEAST48_MAX   UINT48_MAX
482199482Srdivacky# define INT_FAST48_MIN      INT48_MIN
483199482Srdivacky# define INT_FAST48_MAX      INT48_MAX
484199482Srdivacky# define UINT_FAST48_MAX    UINT48_MAX
485199482Srdivacky# define __INT_LEAST32_MIN   INT48_MIN
486199482Srdivacky# define __INT_LEAST32_MAX   INT48_MAX
487199482Srdivacky# define __UINT_LEAST32_MAX UINT48_MAX
488199482Srdivacky# define __INT_LEAST16_MIN   INT48_MIN
489199482Srdivacky# define __INT_LEAST16_MAX   INT48_MAX
490199482Srdivacky# define __UINT_LEAST16_MAX UINT48_MAX
491199482Srdivacky# define __INT_LEAST8_MIN    INT48_MIN
492199482Srdivacky# define __INT_LEAST8_MAX    INT48_MAX
493199482Srdivacky# define __UINT_LEAST8_MAX  UINT48_MAX
494199482Srdivacky#endif /* __INT48_TYPE__ */
495199482Srdivacky
496199482Srdivacky
497199482Srdivacky#ifdef __INT40_TYPE__
498199482Srdivacky# define INT40_MAX           INT40_C(549755813887)
499199482Srdivacky# define INT40_MIN         (-INT40_C(549755813887)-1)
500199482Srdivacky# define UINT40_MAX         UINT40_C(1099511627775)
501199482Srdivacky# define INT_LEAST40_MIN     INT40_MIN
502199482Srdivacky# define INT_LEAST40_MAX     INT40_MAX
503199482Srdivacky# define UINT_LEAST40_MAX   UINT40_MAX
504199482Srdivacky# define INT_FAST40_MIN      INT40_MIN
505199482Srdivacky# define INT_FAST40_MAX      INT40_MAX
506199482Srdivacky# define UINT_FAST40_MAX    UINT40_MAX
507199482Srdivacky# define __INT_LEAST32_MIN   INT40_MIN
508199482Srdivacky# define __INT_LEAST32_MAX   INT40_MAX
509199482Srdivacky# define __UINT_LEAST32_MAX UINT40_MAX
510199482Srdivacky# define __INT_LEAST16_MIN   INT40_MIN
511199482Srdivacky# define __INT_LEAST16_MAX   INT40_MAX
512199482Srdivacky# define __UINT_LEAST16_MAX UINT40_MAX
513199482Srdivacky# define __INT_LEAST8_MIN    INT40_MIN
514199482Srdivacky# define __INT_LEAST8_MAX    INT40_MAX
515199482Srdivacky# define __UINT_LEAST8_MAX  UINT40_MAX
516199482Srdivacky#endif /* __INT40_TYPE__ */
517199482Srdivacky
518199482Srdivacky
519199482Srdivacky#ifdef __INT32_TYPE__
520199482Srdivacky# define INT32_MAX           INT32_C(2147483647)
521199482Srdivacky# define INT32_MIN         (-INT32_C(2147483647)-1)
522199482Srdivacky# define UINT32_MAX         UINT32_C(4294967295)
523199482Srdivacky# define __INT_LEAST32_MIN   INT32_MIN
524199482Srdivacky# define __INT_LEAST32_MAX   INT32_MAX
525199482Srdivacky# define __UINT_LEAST32_MAX UINT32_MAX
526199482Srdivacky# define __INT_LEAST16_MIN   INT32_MIN
527199482Srdivacky# define __INT_LEAST16_MAX   INT32_MAX
528199482Srdivacky# define __UINT_LEAST16_MAX UINT32_MAX
529199482Srdivacky# define __INT_LEAST8_MIN    INT32_MIN
530199482Srdivacky# define __INT_LEAST8_MAX    INT32_MAX
531199482Srdivacky# define __UINT_LEAST8_MAX  UINT32_MAX
532199482Srdivacky#endif /* __INT32_TYPE__ */
533199482Srdivacky
534199482Srdivacky#ifdef __INT_LEAST32_MIN
535199482Srdivacky# define INT_LEAST32_MIN   __INT_LEAST32_MIN
536199482Srdivacky# define INT_LEAST32_MAX   __INT_LEAST32_MAX
537199482Srdivacky# define UINT_LEAST32_MAX __UINT_LEAST32_MAX
538199482Srdivacky# define INT_FAST32_MIN    __INT_LEAST32_MIN
539199482Srdivacky# define INT_FAST32_MAX    __INT_LEAST32_MAX
540199482Srdivacky# define UINT_FAST32_MAX  __UINT_LEAST32_MAX
541199482Srdivacky#endif /* __INT_LEAST32_MIN */
542199482Srdivacky
543199482Srdivacky
544199482Srdivacky#ifdef __INT24_TYPE__
545199482Srdivacky# define INT24_MAX           INT24_C(8388607)
546199482Srdivacky# define INT24_MIN         (-INT24_C(8388607)-1)
547199482Srdivacky# define UINT24_MAX         UINT24_C(16777215)
548199482Srdivacky# define INT_LEAST24_MIN     INT24_MIN
549199482Srdivacky# define INT_LEAST24_MAX     INT24_MAX
550199482Srdivacky# define UINT_LEAST24_MAX   UINT24_MAX
551199482Srdivacky# define INT_FAST24_MIN      INT24_MIN
552199482Srdivacky# define INT_FAST24_MAX      INT24_MAX
553199482Srdivacky# define UINT_FAST24_MAX    UINT24_MAX
554199482Srdivacky# define __INT_LEAST16_MIN   INT24_MIN
555199482Srdivacky# define __INT_LEAST16_MAX   INT24_MAX
556199482Srdivacky# define __UINT_LEAST16_MAX UINT24_MAX
557199482Srdivacky# define __INT_LEAST8_MIN    INT24_MIN
558199482Srdivacky# define __INT_LEAST8_MAX    INT24_MAX
559199482Srdivacky# define __UINT_LEAST8_MAX  UINT24_MAX
560199482Srdivacky#endif /* __INT24_TYPE__ */
561199482Srdivacky
562199482Srdivacky
563199482Srdivacky#ifdef __INT16_TYPE__
564199482Srdivacky#define INT16_MAX            INT16_C(32767)
565199482Srdivacky#define INT16_MIN          (-INT16_C(32767)-1)
566199482Srdivacky#define UINT16_MAX          UINT16_C(65535)
567199482Srdivacky# define __INT_LEAST16_MIN   INT16_MIN
568199482Srdivacky# define __INT_LEAST16_MAX   INT16_MAX
569199482Srdivacky# define __UINT_LEAST16_MAX UINT16_MAX
570199482Srdivacky# define __INT_LEAST8_MIN    INT16_MIN
571199482Srdivacky# define __INT_LEAST8_MAX    INT16_MAX
572199482Srdivacky# define __UINT_LEAST8_MAX  UINT16_MAX
573199482Srdivacky#endif /* __INT16_TYPE__ */
574199482Srdivacky
575199482Srdivacky#ifdef __INT_LEAST16_MIN
576199482Srdivacky# define INT_LEAST16_MIN   __INT_LEAST16_MIN
577199482Srdivacky# define INT_LEAST16_MAX   __INT_LEAST16_MAX
578199482Srdivacky# define UINT_LEAST16_MAX __UINT_LEAST16_MAX
579199482Srdivacky# define INT_FAST16_MIN    __INT_LEAST16_MIN
580199482Srdivacky# define INT_FAST16_MAX    __INT_LEAST16_MAX
581199482Srdivacky# define UINT_FAST16_MAX  __UINT_LEAST16_MAX
582199482Srdivacky#endif /* __INT_LEAST16_MIN */
583199482Srdivacky
584199482Srdivacky
585199482Srdivacky#ifdef __INT8_TYPE__
586199482Srdivacky# define INT8_MAX            INT8_C(127)
587199482Srdivacky# define INT8_MIN          (-INT8_C(127)-1)
588199482Srdivacky# define UINT8_MAX          UINT8_C(255)
589199482Srdivacky# define __INT_LEAST8_MIN    INT8_MIN
590199482Srdivacky# define __INT_LEAST8_MAX    INT8_MAX
591199482Srdivacky# define __UINT_LEAST8_MAX  UINT8_MAX
592199482Srdivacky#endif /* __INT8_TYPE__ */
593199482Srdivacky
594199482Srdivacky#ifdef __INT_LEAST8_MIN
595199482Srdivacky# define INT_LEAST8_MIN   __INT_LEAST8_MIN
596199482Srdivacky# define INT_LEAST8_MAX   __INT_LEAST8_MAX
597199482Srdivacky# define UINT_LEAST8_MAX __UINT_LEAST8_MAX
598199482Srdivacky# define INT_FAST8_MIN    __INT_LEAST8_MIN
599199482Srdivacky# define INT_FAST8_MAX    __INT_LEAST8_MAX
600199482Srdivacky# define UINT_FAST8_MAX  __UINT_LEAST8_MAX
601199482Srdivacky#endif /* __INT_LEAST8_MIN */
602199482Srdivacky
603193326Sed/* C99 7.18.2.4 Limits of integer types capable of holding object pointers. */
604193326Sed/* C99 7.18.3 Limits of other integer types. */
605193326Sed
606199512Srdivacky#define  INTPTR_MIN __stdint_exjoin3( INT, __INTPTR_WIDTH__, _MIN)
607199512Srdivacky#define  INTPTR_MAX __stdint_exjoin3( INT, __INTPTR_WIDTH__, _MAX)
608199512Srdivacky#define UINTPTR_MAX __stdint_exjoin3(UINT, __INTPTR_WIDTH__, _MAX)
609199512Srdivacky
610193326Sed#if __POINTER_WIDTH__ == 64
611193326Sed
612193326Sed#define PTRDIFF_MIN  INT64_MIN
613193326Sed#define PTRDIFF_MAX  INT64_MAX
614193326Sed#define SIZE_MAX    UINT64_MAX
615193326Sed
616193326Sed#elif __POINTER_WIDTH__ == 32
617193326Sed
618193326Sed#define PTRDIFF_MIN  INT32_MIN
619193326Sed#define PTRDIFF_MAX  INT32_MAX
620193326Sed#define SIZE_MAX    UINT32_MAX
621193326Sed
622193326Sed#elif __POINTER_WIDTH__ == 16
623193326Sed
624193326Sed#define PTRDIFF_MIN  INT16_MIN
625193326Sed#define PTRDIFF_MAX  INT16_MAX
626193326Sed#define SIZE_MAX    UINT16_MAX
627193326Sed
628193326Sed#else
629193326Sed#error "unknown or unset pointer width!"
630193326Sed#endif
631193326Sed
632193326Sed/* C99 7.18.2.5 Limits of greatest-width integer types. */
633199512Srdivacky#define INTMAX_MIN  __stdint_exjoin3( INT, __INTMAX_WIDTH__, _MIN)
634199512Srdivacky#define INTMAX_MAX  __stdint_exjoin3( INT, __INTMAX_WIDTH__, _MAX)
635199512Srdivacky#define UINTMAX_MAX __stdint_exjoin3(UINT, __INTMAX_WIDTH__, _MAX)
636193326Sed
637193326Sed/* C99 7.18.3 Limits of other integer types. */
638193326Sed#define SIG_ATOMIC_MIN INT32_MIN
639193326Sed#define SIG_ATOMIC_MAX INT32_MAX
640193326Sed#define WINT_MIN       INT32_MIN
641193326Sed#define WINT_MAX       INT32_MAX
642193326Sed
643193326Sed/* FIXME: if we ever support a target with unsigned wchar_t, this should be
644193326Sed * 0 .. Max.
645193326Sed */
646193326Sed#ifndef WCHAR_MAX
647193326Sed#define WCHAR_MAX __WCHAR_MAX__
648193326Sed#endif
649193326Sed#ifndef WCHAR_MIN
650193326Sed#define WCHAR_MIN (-__WCHAR_MAX__-1)
651193326Sed#endif
652193326Sed
653193326Sed/* 7.18.4.2 Macros for greatest-width integer constants. */
654199512Srdivacky#define INTMAX_C(v)  __stdint_exjoin3( INT, __INTMAX_WIDTH__, _C(v))
655199512Srdivacky#define UINTMAX_C(v) __stdint_exjoin3(UINT, __INTMAX_WIDTH__, _C(v))
656193326Sed
657193326Sed#endif /* __STDC_HOSTED__ */
658193326Sed#endif /* __CLANG_STDINT_H */
659