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1/* Copyright (C) 1997-2025 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 Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the 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 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18/*
19 * ISO C99: 7.18 Integer types <stdint.h>
20 */
21
22#ifndef _STDINT_H
23#define _STDINT_H 1
24
25#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
26#include <bits/libc-header-start.h>
27#include <bits/types.h>
28#include <bits/wchar.h>
29#include <bits/wordsize.h>
30
31/* Exact integral types. */
32
33/* Signed. */
34#include <bits/stdint-intn.h>
35
36/* Unsigned. */
37#include <bits/stdint-uintn.h>
38
39
40/* Small types. */
41#include <bits/stdint-least.h>
42
43
44/* Fast types. */
45
46/* Signed. */
47typedef signed char int_fast8_t;
48#if __WORDSIZE == 64
49typedef long int int_fast16_t;
50typedef long int int_fast32_t;
51typedef long int int_fast64_t;
52#else
53typedef int int_fast16_t;
54typedef int int_fast32_t;
55__extension__
56typedef long long int int_fast64_t;
57#endif
58
59/* Unsigned. */
60typedef unsigned char uint_fast8_t;
61#if __WORDSIZE == 64
62typedef unsigned long int uint_fast16_t;
63typedef unsigned long int uint_fast32_t;
64typedef unsigned long int uint_fast64_t;
65#else
66typedef unsigned int uint_fast16_t;
67typedef unsigned int uint_fast32_t;
68__extension__
69typedef unsigned long long int uint_fast64_t;
70#endif
71
72
73/* Types for `void *' pointers. */
74#if __WORDSIZE == 64
75# ifndef __intptr_t_defined
76typedef long int intptr_t;
77# define __intptr_t_defined
78# endif
79typedef unsigned long int uintptr_t;
80#else
81# ifndef __intptr_t_defined
82typedef int intptr_t;
83# define __intptr_t_defined
84# endif
85typedef unsigned int uintptr_t;
86#endif
87
88
89/* Largest integral types. */
90typedef __intmax_t intmax_t;
91typedef __uintmax_t uintmax_t;
92
93
94# if __WORDSIZE == 64
95# define __INT64_C(c) c ## L
96# define __UINT64_C(c) c ## UL
97# else
98# define __INT64_C(c) c ## LL
99# define __UINT64_C(c) c ## ULL
100# endif
101
102/* Limits of integral types. */
103
104/* Minimum of signed integral types. */
105# define INT8_MIN (-128)
106# define INT16_MIN (-32767-1)
107# define INT32_MIN (-2147483647-1)
108# define INT64_MIN (-__INT64_C(9223372036854775807)-1)
109/* Maximum of signed integral types. */
110# define INT8_MAX (127)
111# define INT16_MAX (32767)
112# define INT32_MAX (2147483647)
113# define INT64_MAX (__INT64_C(9223372036854775807))
114
115/* Maximum of unsigned integral types. */
116# define UINT8_MAX (255)
117# define UINT16_MAX (65535)
118# define UINT32_MAX (4294967295U)
119# define UINT64_MAX (__UINT64_C(18446744073709551615))
120
121
122/* Minimum of signed integral types having a minimum size. */
123# define INT_LEAST8_MIN (-128)
124# define INT_LEAST16_MIN (-32767-1)
125# define INT_LEAST32_MIN (-2147483647-1)
126# define INT_LEAST64_MIN (-__INT64_C(9223372036854775807)-1)
127/* Maximum of signed integral types having a minimum size. */
128# define INT_LEAST8_MAX (127)
129# define INT_LEAST16_MAX (32767)
130# define INT_LEAST32_MAX (2147483647)
131# define INT_LEAST64_MAX (__INT64_C(9223372036854775807))
132
133/* Maximum of unsigned integral types having a minimum size. */
134# define UINT_LEAST8_MAX (255)
135# define UINT_LEAST16_MAX (65535)
136# define UINT_LEAST32_MAX (4294967295U)
137# define UINT_LEAST64_MAX (__UINT64_C(18446744073709551615))
138
139
140/* Minimum of fast signed integral types having a minimum size. */
141# define INT_FAST8_MIN (-128)
142# if __WORDSIZE == 64
143# define INT_FAST16_MIN (-9223372036854775807L-1)
144# define INT_FAST32_MIN (-9223372036854775807L-1)
145# else
146# define INT_FAST16_MIN (-2147483647-1)
147# define INT_FAST32_MIN (-2147483647-1)
148# endif
149# define INT_FAST64_MIN (-__INT64_C(9223372036854775807)-1)
150/* Maximum of fast signed integral types having a minimum size. */
151# define INT_FAST8_MAX (127)
152# if __WORDSIZE == 64
153# define INT_FAST16_MAX (9223372036854775807L)
154# define INT_FAST32_MAX (9223372036854775807L)
155# else
156# define INT_FAST16_MAX (2147483647)
157# define INT_FAST32_MAX (2147483647)
158# endif
159# define INT_FAST64_MAX (__INT64_C(9223372036854775807))
160
161/* Maximum of fast unsigned integral types having a minimum size. */
162# define UINT_FAST8_MAX (255)
163# if __WORDSIZE == 64
164# define UINT_FAST16_MAX (18446744073709551615UL)
165# define UINT_FAST32_MAX (18446744073709551615UL)
166# else
167# define UINT_FAST16_MAX (4294967295U)
168# define UINT_FAST32_MAX (4294967295U)
169# endif
170# define UINT_FAST64_MAX (__UINT64_C(18446744073709551615))
171
172
173/* Values to test for integral types holding `void *' pointer. */
174# if __WORDSIZE == 64
175# define INTPTR_MIN (-9223372036854775807L-1)
176# define INTPTR_MAX (9223372036854775807L)
177# define UINTPTR_MAX (18446744073709551615UL)
178# else
179# define INTPTR_MIN (-2147483647-1)
180# define INTPTR_MAX (2147483647)
181# define UINTPTR_MAX (4294967295U)
182# endif
183
184
185/* Minimum for largest signed integral type. */
186# define INTMAX_MIN (-__INT64_C(9223372036854775807)-1)
187/* Maximum for largest signed integral type. */
188# define INTMAX_MAX (__INT64_C(9223372036854775807))
189
190/* Maximum for largest unsigned integral type. */
191# define UINTMAX_MAX (__UINT64_C(18446744073709551615))
192
193
194/* Limits of other integer types. */
195
196/* Limits of `ptrdiff_t' type. */
197# if __WORDSIZE == 64
198# define PTRDIFF_MIN (-9223372036854775807L-1)
199# define PTRDIFF_MAX (9223372036854775807L)
200# else
201# if __WORDSIZE32_PTRDIFF_LONG
202# define PTRDIFF_MIN (-2147483647L-1)
203# define PTRDIFF_MAX (2147483647L)
204# else
205# define PTRDIFF_MIN (-2147483647-1)
206# define PTRDIFF_MAX (2147483647)
207# endif
208# endif
209
210/* Limits of `sig_atomic_t'. */
211# define SIG_ATOMIC_MIN (-2147483647-1)
212# define SIG_ATOMIC_MAX (2147483647)
213
214/* Limit of `size_t' type. */
215# if __WORDSIZE == 64
216# define SIZE_MAX (18446744073709551615UL)
217# else
218# if __WORDSIZE32_SIZE_ULONG
219# define SIZE_MAX (4294967295UL)
220# else
221# define SIZE_MAX (4294967295U)
222# endif
223# endif
224
225/* Limits of `wchar_t'. */
226# ifndef WCHAR_MIN
227/* These constants might also be defined in <wchar.h>. */
228# define WCHAR_MIN __WCHAR_MIN
229# define WCHAR_MAX __WCHAR_MAX
230# endif
231
232/* Limits of `wint_t'. */
233# define WINT_MIN (0u)
234# define WINT_MAX (4294967295u)
235
236/* Signed. */
237# define INT8_C(c) c
238# define INT16_C(c) c
239# define INT32_C(c) c
240# if __WORDSIZE == 64
241# define INT64_C(c) c ## L
242# else
243# define INT64_C(c) c ## LL
244# endif
245
246/* Unsigned. */
247# define UINT8_C(c) c
248# define UINT16_C(c) c
249# define UINT32_C(c) c ## U
250# if __WORDSIZE == 64
251# define UINT64_C(c) c ## UL
252# else
253# define UINT64_C(c) c ## ULL
254# endif
255
256/* Maximal type. */
257# if __WORDSIZE == 64
258# define INTMAX_C(c) c ## L
259# define UINTMAX_C(c) c ## UL
260# else
261# define INTMAX_C(c) c ## LL
262# define UINTMAX_C(c) c ## ULL
263# endif
264
265#if __GLIBC_USE (IEC_60559_BFP_EXT_C23)
266
267# define INT8_WIDTH 8
268# define UINT8_WIDTH 8
269# define INT16_WIDTH 16
270# define UINT16_WIDTH 16
271# define INT32_WIDTH 32
272# define UINT32_WIDTH 32
273# define INT64_WIDTH 64
274# define UINT64_WIDTH 64
275
276# define INT_LEAST8_WIDTH 8
277# define UINT_LEAST8_WIDTH 8
278# define INT_LEAST16_WIDTH 16
279# define UINT_LEAST16_WIDTH 16
280# define INT_LEAST32_WIDTH 32
281# define UINT_LEAST32_WIDTH 32
282# define INT_LEAST64_WIDTH 64
283# define UINT_LEAST64_WIDTH 64
284
285# define INT_FAST8_WIDTH 8
286# define UINT_FAST8_WIDTH 8
287# define INT_FAST16_WIDTH __WORDSIZE
288# define UINT_FAST16_WIDTH __WORDSIZE
289# define INT_FAST32_WIDTH __WORDSIZE
290# define UINT_FAST32_WIDTH __WORDSIZE
291# define INT_FAST64_WIDTH 64
292# define UINT_FAST64_WIDTH 64
293
294# define INTPTR_WIDTH __WORDSIZE
295# define UINTPTR_WIDTH __WORDSIZE
296
297# define INTMAX_WIDTH 64
298# define UINTMAX_WIDTH 64
299
300# define PTRDIFF_WIDTH __WORDSIZE
301# define SIG_ATOMIC_WIDTH 32
302# define SIZE_WIDTH __WORDSIZE
303# define WCHAR_WIDTH 32
304# define WINT_WIDTH 32
305
306#endif
307
308#endif /* stdint.h */