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
32#ifndef _MACHINE__LIMITS_H_
33#define _MACHINE__LIMITS_H_
34
35/*
36 * According to ANSI (section 2.2.4.2), the values below must be usable by
37 * #if preprocessing directives. Additionally, the expression must have the
38 * same type as would an expression that is an object of the corresponding
39 * type converted according to the integral promotions. The subtraction for
40 * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
41 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
42 */
43
44#define __CHAR_BIT 8 /* number of bits in a char */
45
46#define __SCHAR_MAX 0x7f /* max value for a signed char */
47#define __SCHAR_MIN (-0x7f - 1) /* min value for a signed char */
48
49#define __UCHAR_MAX 0xff /* max value for an unsigned char */
50
51#define __USHRT_MAX 0xffff /* max value for an unsigned short */
52#define __SHRT_MAX 0x7fff /* max value for a short */
53#define __SHRT_MIN (-0x7fff - 1) /* min value for a short */
54
55#define __UINT_MAX 0xffffffff /* max value for an unsigned int */
56#define __INT_MAX 0x7fffffff /* max value for an int */
57#define __INT_MIN (-0x7fffffff - 1) /* min value for an int */
58
59#define __ULONG_MAX 0xffffffffUL /* max value for an unsigned long */
60#define __LONG_MAX 0x7fffffffL /* max value for a long */
61#define __LONG_MIN (-0x7fffffffL - 1) /* min value for a long */
62
63 /* max value for an unsigned long long */
64#define __ULLONG_MAX 0xffffffffffffffffULL
65#define __LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */
66#define __LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */
67
68#define __SSIZE_MAX __INT_MAX /* max value for a ssize_t */
69
70#define __SIZE_T_MAX __UINT_MAX /* max value for a size_t */
71
72#define __OFF_MAX __LLONG_MAX /* max value for a off_t */
73#define __OFF_MIN __LLONG_MIN /* min value for a off_t */
74
75/* Quads and long longs are the same size. Ensure they stay in sync. */
76#define __UQUAD_MAX __ULLONG_MAX /* max value for a uquad_t */
77#define __QUAD_MAX __LLONG_MAX /* max value for a quad_t */
78#define __QUAD_MIN __LLONG_MIN /* min value for a quad_t */
79
80#define __LONG_BIT 32
81#define __WORD_BIT 32
82
83/* Minimum signal stack size. */
84#define __MINSIGSTKSZ (1024 * 4)
85
86#endif /* !_MACHINE__LIMITS_H_ */