1 /*
2 * Copyright (c) 1988, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * @(#)limits.h 8.3 (Berkeley) 1/4/94
34 * $FreeBSD: releng/5.1/sys/i386/include/_limits.h 115164 2003-05-19 20:29:07Z kan $
35 */
36
37 #ifndef _MACHINE__LIMITS_H_
38 #define _MACHINE__LIMITS_H_
39
40 /*
41 * According to ANSI (section 2.2.4.2), the values below must be usable by
42 * #if preprocessing directives. Additionally, the expression must have the
43 * same type as would an expression that is an object of the corresponding
44 * type converted according to the integral promotions. The subtraction for
45 * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
46 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
47 * These numbers are for the default configuration of gcc. They work for
48 * some other compilers as well, but this should not be depended on.
49 */
50
51 #define __CHAR_BIT 8 /* number of bits in a char */
52
53 #define __SCHAR_MAX 0x7f /* max value for a signed char */
54 #define __SCHAR_MIN (-0x7f - 1) /* min value for a signed char */
55
56 #define __UCHAR_MAX 0xff /* max value for an unsigned char */
57
58 #define __USHRT_MAX 0xffff /* max value for an unsigned short */
59 #define __SHRT_MAX 0x7fff /* max value for a short */
60 #define __SHRT_MIN (-0x7fff - 1) /* min value for a short */
61
62 #define __UINT_MAX 0xffffffffU /* max value for an unsigned int */
63 #define __INT_MAX 0x7fffffff /* max value for an int */
64 #define __INT_MIN (-0x7fffffff - 1) /* min value for an int */
65
66 /* Bad hack for gcc configured to give 64-bit longs. */
67 #ifdef _LARGE_LONG
68 #define __ULONG_MAX 0xffffffffffffffffUL
69 #define __LONG_MAX 0x7fffffffffffffffL
70 #define __LONG_MIN (-0x7fffffffffffffffL - 1)
71 #else
72 #define __ULONG_MAX 0xffffffffUL /* max value for an unsigned long */
73 #define __LONG_MAX 0x7fffffffL /* max value for a long */
74 #define __LONG_MIN (-0x7fffffffL - 1) /* min value for a long */
75 #endif
76
77 /* max value for an unsigned long long */
78 #define __ULLONG_MAX 0xffffffffffffffffULL
79 #define __LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */
80 #define __LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */
81
82 #define __SSIZE_MAX __INT_MAX /* max value for a ssize_t */
83
84 #define __SIZE_T_MAX __UINT_MAX /* max value for a size_t */
85
86 #define __OFF_MAX __LLONG_MAX /* max value for an off_t */
87 #define __OFF_MIN __LLONG_MIN /* min value for an off_t */
88
89 /* Quads and long longs are the same size. Ensure they stay in sync. */
90 #define __UQUAD_MAX __ULLONG_MAX /* max value for a uquad_t */
91 #define __QUAD_MAX __LLONG_MAX /* max value for a quad_t */
92 #define __QUAD_MIN __LLONG_MIN /* min value for a quad_t */
93
94 #ifdef _LARGE_LONG
95 #define __LONG_BIT 64
96 #else
97 #define __LONG_BIT 32
98 #endif
99 #define __WORD_BIT 32
100
101 #endif /* !_MACHINE__LIMITS_H_ */
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