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 *
14 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#ifndef _MACHINE__LIMITS_H_
28#define _MACHINE__LIMITS_H_
29
30/*
31 * According to ANSI (section 2.2.4.2), the values below must be usable by
32 * #if preprocessing directives. Additionally, the expression must have the
33 * same type as would an expression that is an object of the corresponding
34 * type converted according to the integral promotions. The subtraction for
35 * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
36 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
37 */
38
39#define __CHAR_BIT 8 /* number of bits in a char */
40
41#define __SCHAR_MAX 0x7f /* max value for a signed char */
42#define __SCHAR_MIN (-0x7f - 1) /* min value for a signed char */
43
44#define __UCHAR_MAX 0xff /* max value for an unsigned char */
45
46#define __USHRT_MAX 0xffff /* max value for an unsigned short */
47#define __SHRT_MAX 0x7fff /* max value for a short */
48#define __SHRT_MIN (-0x7fff - 1) /* min value for a short */
49
50#define __UINT_MAX 0xffffffff /* max value for an unsigned int */
51#define __INT_MAX 0x7fffffff /* max value for an int */
52#define __INT_MIN (-0x7fffffff - 1) /* min value for an int */
53
54#define __ULONG_MAX 0xffffffffffffffffUL /* max for an unsigned long */
55#define __LONG_MAX 0x7fffffffffffffffL /* max for a long */
56#define __LONG_MIN (-0x7fffffffffffffffL - 1) /* min for a long */
57
58/* Long longs have the same size but not the same type as longs. */
59 /* max for an unsigned long long */
60#define __ULLONG_MAX 0xffffffffffffffffULL
61#define __LLONG_MAX 0x7fffffffffffffffLL /* max for a long long */
62#define __LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */
63
64#define __SSIZE_MAX __LONG_MAX /* max value for a ssize_t */
65
66#define __SIZE_T_MAX __ULONG_MAX /* max value for a size_t */
67
68#define __OFF_MAX __LONG_MAX /* max value for an off_t */
69#define __OFF_MIN __LONG_MIN /* min value for an off_t */
70
71/* Quads and longs are the same size. Ensure they stay in sync. */
72#define __UQUAD_MAX (__ULONG_MAX) /* max value for a uquad_t */
73#define __QUAD_MAX (__LONG_MAX) /* max value for a quad_t */
74#define __QUAD_MIN (__LONG_MIN) /* min value for a quad_t */
75
76#define __LONG_BIT 64
77#define __WORD_BIT 32
78
79/* Minimum signal stack size. */
80#define __MINSIGSTKSZ (1024 * 4)
81
82#endif /* !_MACHINE__LIMITS_H_ */