xref: /illumos-gate/usr/src/uts/common/sys/int_types.h (revision 7c478bd9)
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 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #ifndef _SYS_INT_TYPES_H
28 #define	_SYS_INT_TYPES_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
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 #if defined(__STDC__)
78 typedef signed char		int8_t;
79 #endif
80 #endif
81 typedef short			int16_t;
82 typedef int			int32_t;
83 #ifdef	_LP64
84 #define	_INT64_TYPE
85 typedef long			int64_t;
86 #else	/* _ILP32 */
87 #if defined(_LONGLONG_TYPE)
88 #define	_INT64_TYPE
89 typedef	long long		int64_t;
90 #endif
91 #endif
92 
93 typedef unsigned char		uint8_t;
94 typedef unsigned short		uint16_t;
95 typedef unsigned int		uint32_t;
96 #ifdef	_LP64
97 typedef unsigned long		uint64_t;
98 #else	/* _ILP32 */
99 #if defined(_LONGLONG_TYPE)
100 typedef unsigned long long	uint64_t;
101 #endif
102 #endif
103 
104 /*
105  * intmax_t and uintmax_t are to be the longest (in number of bits) signed
106  * and unsigned integer types supported by the implementation.
107  */
108 #if defined(_INT64_TYPE)
109 typedef int64_t			intmax_t;
110 typedef uint64_t		uintmax_t;
111 #else
112 typedef int32_t			intmax_t;
113 typedef uint32_t		uintmax_t;
114 #endif
115 
116 /*
117  * intptr_t and uintptr_t are signed and unsigned integer types large enough
118  * to hold any data pointer; that is, data pointers can be assigned into or
119  * from these integer types without losing precision.
120  */
121 #if defined(_LP64) || defined(_I32LPx)
122 typedef long			intptr_t;
123 typedef unsigned long		uintptr_t;
124 #else
125 typedef	int			intptr_t;
126 typedef	unsigned int		uintptr_t;
127 #endif
128 
129 /*
130  * The following define the fastest integer types that can hold the
131  * specified number of bits.
132  */
133 #if defined(_CHAR_IS_SIGNED)
134 typedef char			int_fast8_t;
135 #else
136 #if defined(__STDC__)
137 typedef signed char		int_fast8_t;
138 #endif
139 #endif
140 typedef int			int_fast16_t;
141 typedef int			int_fast32_t;
142 #ifdef	_LP64
143 typedef long			int_fast64_t;
144 #else	/* _ILP32 */
145 #if defined(_LONGLONG_TYPE)
146 typedef long long		int_fast64_t;
147 #endif
148 #endif
149 
150 typedef unsigned char		uint_fast8_t;
151 typedef unsigned int		uint_fast16_t;
152 typedef unsigned int		uint_fast32_t;
153 #ifdef	_LP64
154 typedef unsigned long		uint_fast64_t;
155 #else	/* _ILP32 */
156 #if defined(_LONGLONG_TYPE)
157 typedef unsigned long long	uint_fast64_t;
158 #endif
159 #endif
160 
161 /*
162  * The following define the smallest integer types that can hold the
163  * specified number of bits.
164  */
165 #if defined(_CHAR_IS_SIGNED)
166 typedef char			int_least8_t;
167 #else
168 #if defined(__STDC__)
169 typedef signed char		int_least8_t;
170 #endif
171 #endif
172 typedef short			int_least16_t;
173 typedef int			int_least32_t;
174 #ifdef	_LP64
175 typedef long			int_least64_t;
176 #else	/* _ILP32 */
177 #if defined(_LONGLONG_TYPE)
178 typedef long long		int_least64_t;
179 #endif
180 #endif
181 
182 typedef unsigned char		uint_least8_t;
183 typedef unsigned short		uint_least16_t;
184 typedef unsigned int		uint_least32_t;
185 #ifdef	_LP64
186 typedef unsigned long		uint_least64_t;
187 #else	/* _ILP32 */
188 #if defined(_LONGLONG_TYPE)
189 typedef unsigned long long	uint_least64_t;
190 #endif
191 #endif
192 
193 #ifdef __cplusplus
194 }
195 #endif
196 
197 #endif /* _SYS_INT_TYPES_H */
198