xref: /illumos-gate/usr/src/uts/common/sys/int_types.h (revision ba3594ba)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2014 Garrett D'Amore <garrett@damore.org>
24  *
25  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
26  * Use is subject to license terms.
27  */
28 
29 #ifndef _SYS_INT_TYPES_H
30 #define	_SYS_INT_TYPES_H
31 
32 /*
33  * This file, <sys/int_types.h>, is part of the Sun Microsystems implementation
34  * of <inttypes.h> defined in the ISO C standard, ISO/IEC 9899:1999
35  * Programming language - C.
36  *
37  * Programs/Modules should not directly include this file.  Access to the
38  * types defined in this file should be through the inclusion of one of the
39  * following files:
40  *
41  *	<sys/types.h>		Provides only the "_t" types defined in this
42  *				file which is a subset of the contents of
43  *				<inttypes.h>.  (This can be appropriate for
44  *				all programs/modules except those claiming
45  *				ANSI-C conformance.)
46  *
47  *	<sys/inttypes.h>	Provides the Kernel and Driver appropriate
48  *				components of <inttypes.h>.
49  *
50  *	<inttypes.h>		For use by applications.
51  *
52  * See these files for more details.
53  */
54 
55 #include <sys/feature_tests.h>
56 
57 #ifdef __cplusplus
58 extern "C" {
59 #endif
60 
61 /*
62  * Basic / Extended integer types
63  *
64  * The following defines the basic fixed-size integer types.
65  *
66  * Implementations are free to typedef them to Standard C integer types or
67  * extensions that they support. If an implementation does not support one
68  * of the particular integer data types below, then it should not define the
69  * typedefs and macros corresponding to that data type.  Note that int8_t
70  * is not defined in -Xs mode on ISAs for which the ABI specifies "char"
71  * as an unsigned entity because there is no way to define an eight bit
72  * signed integral.
73  */
74 #if defined(_CHAR_IS_SIGNED)
75 typedef char			int8_t;
76 #else
77 typedef signed char		int8_t;
78 #endif
79 typedef short			int16_t;
80 typedef int			int32_t;
81 #ifdef	_LP64
82 #define	_INT64_TYPE
83 typedef long			int64_t;
84 #else	/* _ILP32 */
85 #if defined(_LONGLONG_TYPE)
86 #define	_INT64_TYPE
87 typedef	long long		int64_t;
88 #endif
89 #endif
90 
91 typedef unsigned char		uint8_t;
92 typedef unsigned short		uint16_t;
93 typedef unsigned int		uint32_t;
94 #ifdef	_LP64
95 typedef unsigned long		uint64_t;
96 #else	/* _ILP32 */
97 #if defined(_LONGLONG_TYPE)
98 typedef unsigned long long	uint64_t;
99 #endif
100 #endif
101 
102 /*
103  * intmax_t and uintmax_t are to be the longest (in number of bits) signed
104  * and unsigned integer types supported by the implementation.
105  */
106 #if defined(_INT64_TYPE)
107 typedef int64_t			intmax_t;
108 typedef uint64_t		uintmax_t;
109 #else
110 typedef int32_t			intmax_t;
111 typedef uint32_t		uintmax_t;
112 #endif
113 
114 /*
115  * intptr_t and uintptr_t are signed and unsigned integer types large enough
116  * to hold any data pointer; that is, data pointers can be assigned into or
117  * from these integer types without losing precision.
118  */
119 #if defined(_LP64) || defined(_I32LPx)
120 typedef long			intptr_t;
121 typedef unsigned long		uintptr_t;
122 #else
123 typedef	int			intptr_t;
124 typedef	unsigned int		uintptr_t;
125 #endif
126 
127 /*
128  * The following define the fastest integer types that can hold the
129  * specified number of bits.
130  */
131 #if defined(_CHAR_IS_SIGNED)
132 typedef char			int_fast8_t;
133 #else
134 typedef signed char		int_fast8_t;
135 #endif
136 typedef int			int_fast16_t;
137 typedef int			int_fast32_t;
138 #ifdef	_LP64
139 typedef long			int_fast64_t;
140 #else	/* _ILP32 */
141 #if defined(_LONGLONG_TYPE)
142 typedef long long		int_fast64_t;
143 #endif
144 #endif
145 
146 typedef unsigned char		uint_fast8_t;
147 typedef unsigned int		uint_fast16_t;
148 typedef unsigned int		uint_fast32_t;
149 #ifdef	_LP64
150 typedef unsigned long		uint_fast64_t;
151 #else	/* _ILP32 */
152 #if defined(_LONGLONG_TYPE)
153 typedef unsigned long long	uint_fast64_t;
154 #endif
155 #endif
156 
157 /*
158  * The following define the smallest integer types that can hold the
159  * specified number of bits.
160  */
161 #if defined(_CHAR_IS_SIGNED)
162 typedef char			int_least8_t;
163 #else
164 typedef signed char		int_least8_t;
165 #endif
166 typedef short			int_least16_t;
167 typedef int			int_least32_t;
168 #ifdef	_LP64
169 typedef long			int_least64_t;
170 #else	/* _ILP32 */
171 #if defined(_LONGLONG_TYPE)
172 typedef long long		int_least64_t;
173 #endif
174 #endif
175 
176 typedef unsigned char		uint_least8_t;
177 typedef unsigned short		uint_least16_t;
178 typedef unsigned int		uint_least32_t;
179 #ifdef	_LP64
180 typedef unsigned long		uint_least64_t;
181 #else	/* _ILP32 */
182 #if defined(_LONGLONG_TYPE)
183 typedef unsigned long long	uint_least64_t;
184 #endif
185 #endif
186 
187 #ifdef __cplusplus
188 }
189 #endif
190 
191 #endif /* _SYS_INT_TYPES_H */
192