master
1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1988, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 *
31 * @(#)limits.h 8.3 (Berkeley) 1/4/94
32 */
33
34#ifndef _MACHINE__LIMITS_H_
35#define _MACHINE__LIMITS_H_
36
37/*
38 * According to ANSI (section 2.2.4.2), the values below must be usable by
39 * #if preprocessing directives. Additionally, the expression must have the
40 * same type as would an expression that is an object of the corresponding
41 * type converted according to the integral promotions. The subtraction for
42 * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
43 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
44 */
45
46#define __CHAR_BIT 8 /* number of bits in a char */
47
48#define __SCHAR_MAX 0x7f /* max value for a signed char */
49#define __SCHAR_MIN (-0x7f - 1) /* min value for a signed char */
50
51#define __UCHAR_MAX 0xff /* max value for an unsigned char */
52
53#define __USHRT_MAX 0xffff /* max value for an unsigned short */
54#define __SHRT_MAX 0x7fff /* max value for a short */
55#define __SHRT_MIN (-0x7fff - 1) /* min value for a short */
56
57#define __UINT_MAX 0xffffffff /* max value for an unsigned int */
58#define __INT_MAX 0x7fffffff /* max value for an int */
59#define __INT_MIN (-0x7fffffff - 1) /* min value for an int */
60
61#ifdef __LP64__
62#define __ULONG_MAX 0xffffffffffffffff /* max for an unsigned long */
63#define __LONG_MAX 0x7fffffffffffffff /* max for a long */
64#define __LONG_MIN (-0x7fffffffffffffff - 1) /* min for a long */
65#else
66#define __ULONG_MAX 0xffffffffUL
67#define __LONG_MAX 0x7fffffffL
68#define __LONG_MIN (-0x7fffffffL - 1)
69#endif
70
71 /* max value for an unsigned long long */
72#define __ULLONG_MAX 0xffffffffffffffffULL
73#define __LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */
74#define __LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */
75
76#ifdef __LP64__
77#define __SSIZE_MAX __LONG_MAX /* max value for a ssize_t */
78#define __SIZE_T_MAX __ULONG_MAX /* max value for a size_t */
79#define __OFF_MAX __LONG_MAX /* max value for an off_t */
80#define __OFF_MIN __LONG_MIN /* min value for an off_t */
81/* Quads and longs are the same on the amd64. Ensure they stay in sync. */
82#define __UQUAD_MAX __ULONG_MAX /* max value for a uquad_t */
83#define __QUAD_MAX __LONG_MAX /* max value for a quad_t */
84#define __QUAD_MIN __LONG_MIN /* min value for a quad_t */
85#define __LONG_BIT 64
86#else
87#define __SSIZE_MAX __INT_MAX
88#define __SIZE_T_MAX __UINT_MAX
89#define __OFF_MAX __LLONG_MAX
90#define __OFF_MIN __LLONG_MIN
91#define __UQUAD_MAX __ULLONG_MAX
92#define __QUAD_MAX __LLONG_MAX
93#define __QUAD_MIN __LLONG_MIN
94#define __LONG_BIT 32
95#endif
96
97#define __WORD_BIT 32
98
99/* Minimum signal stack size. */
100#define __MINSIGSTKSZ (512 * 4)
101
102#endif /* !_MACHINE__LIMITS_H_ */