Annotation of sys/sys/stdint.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: stdint.h,v 1.4 2006/12/10 22:17:55 deraadt Exp $ */
2:
3: /*
4: * Copyright (c) 1997, 2005 Todd C. Miller <Todd.Miller@courtesan.com>
5: *
6: * Permission to use, copy, modify, and distribute this software for any
7: * purpose with or without fee is hereby granted, provided that the above
8: * copyright notice and this permission notice appear in all copies.
9: *
10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17: */
18:
19: #ifndef _SYS_STDINT_H_
20: #define _SYS_STDINT_H_
21:
22: #include <sys/cdefs.h>
23: #include <machine/_types.h>
24:
25: #ifndef __BIT_TYPES_DEFINED__
26: #define __BIT_TYPES_DEFINED__
27: #endif
28:
29: /* 7.18.1.1 Exact-width integer types (also in sys/types.h) */
30: #ifndef _INT8_T_DEFINED_
31: #define _INT8_T_DEFINED_
32: typedef __int8_t int8_t;
33: #endif
34:
35: #ifndef _UINT8_T_DEFINED_
36: #define _UINT8_T_DEFINED_
37: typedef __uint8_t uint8_t;
38: #endif
39:
40: #ifndef _INT16_T_DEFINED_
41: #define _INT16_T_DEFINED_
42: typedef __int16_t int16_t;
43: #endif
44:
45: #ifndef _UINT16_T_DEFINED_
46: #define _UINT16_T_DEFINED_
47: typedef __uint16_t uint16_t;
48: #endif
49:
50: #ifndef _INT32_T_DEFINED_
51: #define _INT32_T_DEFINED_
52: typedef __int32_t int32_t;
53: #endif
54:
55: #ifndef _UINT32_T_DEFINED_
56: #define _UINT32_T_DEFINED_
57: typedef __uint32_t uint32_t;
58: #endif
59:
60: #ifndef _INT64_T_DEFINED_
61: #define _INT64_T_DEFINED_
62: typedef __int64_t int64_t;
63: #endif
64:
65: #ifndef _UINT64_T_DEFINED_
66: #define _UINT64_T_DEFINED_
67: typedef __uint64_t uint64_t;
68: #endif
69:
70: /* 7.18.1.2 Minimum-width integer types */
71: typedef __int_least8_t int_least8_t;
72: typedef __uint_least8_t uint_least8_t;
73: typedef __int_least16_t int_least16_t;
74: typedef __uint_least16_t uint_least16_t;
75: typedef __int_least32_t int_least32_t;
76: typedef __uint_least32_t uint_least32_t;
77: typedef __int_least64_t int_least64_t;
78: typedef __uint_least64_t uint_least64_t;
79:
80: /* 7.18.1.3 Fastest minimum-width integer types */
81: typedef __int_fast8_t int_fast8_t;
82: typedef __uint_fast8_t uint_fast8_t;
83: typedef __int_fast16_t int_fast16_t;
84: typedef __uint_fast16_t uint_fast16_t;
85: typedef __int_fast32_t int_fast32_t;
86: typedef __uint_fast32_t uint_fast32_t;
87: typedef __int_fast64_t int_fast64_t;
88: typedef __uint_fast64_t uint_fast64_t;
89:
90: /* 7.18.1.4 Integer types capable of holding object pointers */
91: typedef __intptr_t intptr_t;
92: typedef __uintptr_t uintptr_t;
93:
94: /* 7.18.1.5 Greatest-width integer types */
95: typedef __intmax_t intmax_t;
96: typedef __uintmax_t uintmax_t;
97:
98: #if !defined(__cplusplus) || defined(__STDC_LIMIT_MACROS)
99: /*
100: * 7.18.2 Limits of specified-width integer types.
101: *
102: * The following object-like macros specify the minimum and maximum limits
103: * of integer types corresponding to the typedef names defined above.
104: */
105:
106: /* 7.18.2.1 Limits of exact-width integer types */
107: #define INT8_MIN (-0x7f - 1)
108: #define INT16_MIN (-0x7fff - 1)
109: #define INT32_MIN (-0x7fffffff - 1)
110: #define INT64_MIN (-0x7fffffffffffffffLL - 1)
111:
112: #define INT8_MAX 0x7f
113: #define INT16_MAX 0x7fff
114: #define INT32_MAX 0x7fffffff
115: #define INT64_MAX 0x7fffffffffffffffLL
116:
117: #define UINT8_MAX 0xff
118: #define UINT16_MAX 0xffff
119: #define UINT32_MAX 0xffffffffU
120: #define UINT64_MAX 0xffffffffffffffffULL
121:
122: /* 7.18.2.2 Limits of minimum-width integer types */
123: #define INT_LEAST8_MIN INT8_MIN
124: #define INT_LEAST16_MIN INT16_MIN
125: #define INT_LEAST32_MIN INT32_MIN
126: #define INT_LEAST64_MIN INT64_MIN
127:
128: #define INT_LEAST8_MAX INT8_MAX
129: #define INT_LEAST16_MAX INT16_MAX
130: #define INT_LEAST32_MAX INT32_MAX
131: #define INT_LEAST64_MAX INT64_MAX
132:
133: #define UINT_LEAST8_MAX UINT8_MAX
134: #define UINT_LEAST16_MAX UINT16_MAX
135: #define UINT_LEAST32_MAX UINT32_MAX
136: #define UINT_LEAST64_MAX UINT64_MAX
137:
138: /* 7.18.2.3 Limits of fastest minimum-width integer types */
139: #define INT_FAST8_MIN INT8_MIN
140: #define INT_FAST16_MIN INT16_MIN
141: #define INT_FAST32_MIN INT32_MIN
142: #define INT_FAST64_MIN INT64_MIN
143:
144: #define INT_FAST8_MAX INT8_MAX
145: #define INT_FAST16_MAX INT16_MAX
146: #define INT_FAST32_MAX INT32_MAX
147: #define INT_FAST64_MAX INT64_MAX
148:
149: #define UINT_FAST8_MAX UINT8_MAX
150: #define UINT_FAST16_MAX UINT16_MAX
151: #define UINT_FAST32_MAX UINT32_MAX
152: #define UINT_FAST64_MAX UINT64_MAX
153:
154: /* 7.18.2.4 Limits of integer types capable of holding object pointers */
155: #ifdef __LP64__
156: #define INTPTR_MIN INT64_MIN
157: #define INTPTR_MAX INT64_MAX
158: #define UINTPTR_MAX UINT64_MAX
159: #else
160: #define INTPTR_MIN INT32_MIN
161: #define INTPTR_MAX INT32_MAX
162: #define UINTPTR_MAX UINT32_MAX
163: #endif
164:
165: /* 7.18.2.5 Limits of greatest-width integer types */
166: #define INTMAX_MIN INT64_MIN
167: #define INTMAX_MAX INT64_MAX
168: #define UINTMAX_MAX UINT64_MAX
169:
170: /*
171: * 7.18.3 Limits of other integer types.
172: *
173: * The following object-like macros specify the minimum and maximum limits
174: * of integer types corresponding to types specified in other standard
175: * header files.
176: */
177:
178: /* Limits of ptrdiff_t */
179: #define PTRDIFF_MIN INTPTR_MIN
180: #define PTRDIFF_MAX INTPTR_MAX
181:
182: /* Limits of sig_atomic_t */
183: #define SIG_ATOMIC_MIN INT32_MIN
184: #define SIG_ATOMIC_MAX INT32_MAX
185:
186: /* Limits of size_t (also in limits.h) */
187: #ifndef SIZE_MAX
188: #define SIZE_MAX UINTPTR_MAX
189: #endif
190:
191: /* Limits of wchar_t */
192: #define WCHAR_MIN INT32_MIN
193: #define WCHAR_MAX INT32_MAX
194:
195: /* Limits of wint_t */
196: #define WINT_MIN INT32_MIN
197: #define WINT_MAX INT32_MAX
198:
199: #endif /* __cplusplus || __STDC_LIMIT_MACROS */
200:
201: #if !defined(__cplusplus) || defined(__STDC_CONSTANT_MACROS)
202: /*
203: * 7.18.4 Macros for integer constants.
204: *
205: * The following function-like macros expand to integer constants
206: * suitable for initializing objects that have integer types corresponding
207: * to types defined in <stdint.h>. The argument in any instance of
208: * these macros shall be a decimal, octal, or hexadecimal constant with
209: * a value that does not exceed the limits for the corresponding type.
210: */
211:
212: /* 7.18.4.1 Macros for minimum-width integer constants. */
213: #define INT8_C(_c) (_c)
214: #define INT16_C(_c) (_c)
215: #define INT32_C(_c) (_c)
216: #define INT64_C(_c) __CONCAT(_c, LL)
217:
218: #define UINT8_C(_c) (_c)
219: #define UINT16_C(_c) (_c)
220: #define UINT32_C(_c) __CONCAT(_c, U)
221: #define UINT64_C(_c) __CONCAT(_c, ULL)
222:
223: /* 7.18.4.2 Macros for greatest-width integer constants. */
224: #define INTMAX_C(_c) __CONCAT(_c, LL)
225: #define UINTMAX_C(_c) __CONCAT(_c, ULL)
226:
227: #endif /* __cplusplus || __STDC_CONSTANT_MACROS */
228:
229: #endif /* _SYS_STDINT_H_ */
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