File: /usr/include/stdint.h
1 /* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Library General Public License as
6 published by the Free Software Foundation; either version 2 of the
7 License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU C Library; see the file COPYING.LIB. If not,
16 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 Boston, MA 02111-1307, USA. */
18
19 /*
20 * ISO C99: 7.18 Integer types <stdint.h>
21 */
22
23 #ifndef _STDINT_H
24 #define _STDINT_H 1
25
26 #include <features.h>
27 #define __need_wchar_t
28 #include <stddef.h>
29 #include <bits/wchar.h>
30 #include <bits/wordsize.h>
31
32 /* Exact integral types. */
33
34 /* Signed. */
35
36 /* There is some amount of overlap with <sys/types.h> as known by inet code */
37 #ifndef __int8_t_defined
38 # define __int8_t_defined
39 typedef signed char int8_t;
40 typedef short int int16_t;
41 typedef int int32_t;
42 # if __WORDSIZE == 64
43 typedef long int int64_t;
44 # else
45 __extension__
46 typedef long long int int64_t;
47 # endif
48 #endif
49
50 /* Unsigned. */
51 typedef unsigned char uint8_t;
52 typedef unsigned short int uint16_t;
53 #ifndef __uint32_t_defined
54 typedef unsigned int uint32_t;
55 # define __uint32_t_defined
56 #endif
57 #if __WORDSIZE == 64
58 typedef unsigned long int uint64_t;
59 #else
60 __extension__
61 typedef unsigned long long int uint64_t;
62 #endif
63
64
65 /* Small types. */
66
67 /* Signed. */
68 typedef signed char int_least8_t;
69 typedef short int int_least16_t;
70 typedef int int_least32_t;
71 #if __WORDSIZE == 64
72 typedef long int int_least64_t;
73 #else
74 __extension__
75 typedef long long int int_least64_t;
76 #endif
77
78 /* Unsigned. */
79 typedef unsigned char uint_least8_t;
80 typedef unsigned short int uint_least16_t;
81 typedef unsigned int uint_least32_t;
82 #if __WORDSIZE == 64
83 typedef unsigned long int uint_least64_t;
84 #else
85 __extension__
86 typedef unsigned long long int uint_least64_t;
87 #endif
88
89
90 /* Fast types. */
91
92 /* Signed. */
93 typedef signed char int_fast8_t;
94 #if __WORDSIZE == 64
95 typedef long int int_fast16_t;
96 typedef long int int_fast32_t;
97 typedef long int int_fast64_t;
98 #else
99 typedef int int_fast16_t;
100 typedef int int_fast32_t;
101 __extension__
102 typedef long long int int_fast64_t;
103 #endif
104
105 /* Unsigned. */
106 typedef unsigned char uint_fast8_t;
107 #if __WORDSIZE == 64
108 typedef unsigned long int uint_fast16_t;
109 typedef unsigned long int uint_fast32_t;
110 typedef unsigned long int uint_fast64_t;
111 #else
112 typedef unsigned int uint_fast16_t;
113 typedef unsigned int uint_fast32_t;
114 __extension__
115 typedef unsigned long long int uint_fast64_t;
116 #endif
117
118
119 /* Types for `void *' pointers. */
120 #if __WORDSIZE == 64
121 # ifndef __intptr_t_defined
122 typedef long int intptr_t;
123 # define __intptr_t_defined
124 # endif
125 typedef unsigned long int uintptr_t;
126 #else
127 # ifndef __intptr_t_defined
128 typedef int intptr_t;
129 # define __intptr_t_defined
130 # endif
131 typedef unsigned int uintptr_t;
132 #endif
133
134
135 /* Largest integral types. */
136 #if __WORDSIZE == 64
137 typedef long int intmax_t;
138 typedef unsigned long int uintmax_t;
139 #else
140 __extension__
141 typedef long long int intmax_t;
142 __extension__
143 typedef unsigned long long int uintmax_t;
144 #endif
145
146
147 /* The ISO C99 standard specifies that in C++ implementations these
148 macros should only be defined if explicitly requested. */
149 #if !defined __cplusplus || defined __STDC_LIMIT_MACROS
150
151 # if __WORDSIZE == 64
152 # define __INT64_C(c) c ## L
153 # define __UINT64_C(c) c ## UL
154 # else
155 # define __INT64_C(c) c ## LL
156 # define __UINT64_C(c) c ## ULL
157 # endif
158
159 /* Limits of integral types. */
160
161 /* Minimum of signed integral types. */
162 # define INT8_MIN (-128)
163 # define INT16_MIN (-32767-1)
164 # define INT32_MIN (-2147483647-1)
165 # define INT64_MIN (-__INT64_C(9223372036854775807)-1)
166 /* Maximum of signed integral types. */
167 # define INT8_MAX (127)
168 # define INT16_MAX (32767)
169 # define INT32_MAX (2147483647)
170 # define INT64_MAX (__INT64_C(9223372036854775807))
171
172 /* Maximum of unsigned integral types. */
173 # define UINT8_MAX (255)
174 # define UINT16_MAX (65535)
175 # define UINT32_MAX (4294967295U)
176 # define UINT64_MAX (__UINT64_C(18446744073709551615))
177
178
179 /* Minimum of signed integral types having a minimum size. */
180 # define INT_LEAST8_MIN (-128)
181 # define INT_LEAST16_MIN (-32767-1)
182 # define INT_LEAST32_MIN (-2147483647-1)
183 # define INT_LEAST64_MIN (-__INT64_C(9223372036854775807)-1)
184 /* Maximum of signed integral types having a minimum size. */
185 # define INT_LEAST8_MAX (127)
186 # define INT_LEAST16_MAX (32767)
187 # define INT_LEAST32_MAX (2147483647)
188 # define INT_LEAST64_MAX (__INT64_C(9223372036854775807))
189
190 /* Maximum of unsigned integral types having a minimum size. */
191 # define UINT_LEAST8_MAX (255)
192 # define UINT_LEAST16_MAX (65535)
193 # define UINT_LEAST32_MAX (4294967295U)
194 # define UINT_LEAST64_MAX (__UINT64_C(18446744073709551615))
195
196
197 /* Minimum of fast signed integral types having a minimum size. */
198 # define INT_FAST8_MIN (-128)
199 # if __WORDSIZE == 64
200 # define INT_FAST16_MIN (-9223372036854775807L-1)
201 # define INT_FAST32_MIN (-9223372036854775807L-1)
202 # else
203 # define INT_FAST16_MIN (-2147483647-1)
204 # define INT_FAST32_MIN (-2147483647-1)
205 # endif
206 # define INT_FAST64_MIN (-__INT64_C(9223372036854775807)-1)
207 /* Maximum of fast signed integral types having a minimum size. */
208 # define INT_FAST8_MAX (127)
209 # if __WORDSIZE == 64
210 # define INT_FAST16_MAX (9223372036854775807L)
211 # define INT_FAST32_MAX (9223372036854775807L)
212 # else
213 # define INT_FAST16_MAX (2147483647)
214 # define INT_FAST32_MAX (2147483647)
215 # endif
216 # define INT_FAST64_MAX (__INT64_C(9223372036854775807))
217
218 /* Maximum of fast unsigned integral types having a minimum size. */
219 # define UINT_FAST8_MAX (255)
220 # if __WORDSIZE == 64
221 # define UINT_FAST16_MAX (18446744073709551615UL)
222 # define UINT_FAST32_MAX (18446744073709551615UL)
223 # else
224 # define UINT_FAST16_MAX (4294967295U)
225 # define UINT_FAST32_MAX (4294967295U)
226 # endif
227 # define UINT_FAST64_MAX (__UINT64_C(18446744073709551615))
228
229
230 /* Values to test for integral types holding `void *' pointer. */
231 # if __WORDSIZE == 64
232 # define INTPTR_MIN (-9223372036854775807L-1)
233 # define INTPTR_MAX (9223372036854775807L)
234 # define UINTPTR_MAX (18446744073709551615UL)
235 # else
236 # define INTPTR_MIN (-2147483647-1)
237 # define INTPTR_MAX (2147483647)
238 # define UINTPTR_MAX (4294967295U)
239 # endif
240
241
242 /* Minimum for largest signed integral type. */
243 # define INTMAX_MIN (-__INT64_C(9223372036854775807)-1)
244 /* Maximum for largest signed integral type. */
245 # define INTMAX_MAX (__INT64_C(9223372036854775807))
246
247 /* Maximum for largest unsigned integral type. */
248 # define UINTMAX_MAX (__UINT64_C(18446744073709551615))
249
250
251 /* Limits of other integer types. */
252
253 /* Limits of `ptrdiff_t' type. */
254 # if __WORDSIZE == 64
255 # define PTRDIFF_MIN (-9223372036854775807L-1)
256 # define PTRDIFF_MAX (9223372036854775807L)
257 # else
258 # define PTRDIFF_MIN (-2147483647-1)
259 # define PTRDIFF_MAX (2147483647)
260 # endif
261
262 /* Limits of `sig_atomic_t'. */
263 # define SIG_ATOMIC_MIN (-2147483647-1)
264 # define SIG_ATOMIC_MAX (2147483647)
265
266 /* Limit of `size_t' type. */
267 # if __WORDSIZE == 64
268 # define SIZE_MAX (18446744073709551615UL)
269 # else
270 # define SIZE_MAX (4294967295U)
271 # endif
272
273 /* Limits of `wchar_t'. */
274 # ifndef WCHAR_MIN
275 /* These constants might also be defined in <wchar.h>. */
276 # define WCHAR_MIN __WCHAR_MIN
277 # define WCHAR_MAX __WCHAR_MAX
278 # endif
279
280 /* Limits of `wint_t'. */
281 # define WINT_MIN (0u)
282 # define WINT_MAX (4294967295u)
283
284 #endif /* C++ && limit macros */
285
286
287 /* The ISO C99 standard specifies that in C++ implementations these
288 should only be defined if explicitly requested. */
289 #if !defined __cplusplus || defined __STDC_CONSTANT_MACROS
290
291 /* Signed. */
292 # define INT8_C(c) c
293 # define INT16_C(c) c
294 # define INT32_C(c) c
295 # if __WORDSIZE == 64
296 # define INT64_C(c) c ## L
297 # else
298 # define INT64_C(c) c ## LL
299 # endif
300
301 /* Unsigned. */
302 # define UINT8_C(c) c ## U
303 # define UINT16_C(c) c ## U
304 # define UINT32_C(c) c ## U
305 # if __WORDSIZE == 64
306 # define UINT64_C(c) c ## UL
307 # else
308 # define UINT64_C(c) c ## ULL
309 # endif
310
311 /* Maximal type. */
312 # if __WORDSIZE == 64
313 # define INTMAX_C(c) c ## L
314 # define UINTMAX_C(c) c ## UL
315 # else
316 # define INTMAX_C(c) c ## LL
317 # define UINTMAX_C(c) c ## ULL
318 # endif
319
320 #endif /* C++ && constant macros */
321
322 #endif /* stdint.h */
323