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 *	@(#)limits.h	8.3 (Berkeley) 1/4/94
27 */
28
29#ifndef _MACHINE__LIMITS_H_
30#define	_MACHINE__LIMITS_H_
31
32/*
33 * According to ANSI (section 2.2.4.2), the values below must be usable by
34 * #if preprocessing directives.  Additionally, the expression must have the
35 * same type as would an expression that is an object of the corresponding
36 * type converted according to the integral promotions.  The subtraction for
37 * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an
38 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
39 */
40
41#define	__CHAR_BIT	8		/* number of bits in a char */
42
43#define	__SCHAR_MAX	0x7f		/* max value for a signed char */
44#define	__SCHAR_MIN	(-0x7f - 1)	/* min value for a signed char */
45
46#define	__UCHAR_MAX	0xff		/* max value for an unsigned char */
47
48#define	__USHRT_MAX	0xffff		/* max value for an unsigned short */
49#define	__SHRT_MAX	0x7fff		/* max value for a short */
50#define	__SHRT_MIN	(-0x7fff - 1)	/* min value for a short */
51
52#define	__UINT_MAX	0xffffffff	/* max value for an unsigned int */
53#define	__INT_MAX	0x7fffffff	/* max value for an int */
54#define	__INT_MIN	(-0x7fffffff - 1)	/* min value for an int */
55
56#define	__ULONG_MAX	0xffffffffffffffffUL	/* max for an unsigned long */
57#define	__LONG_MAX	0x7fffffffffffffffL	/* max for a long */
58#define	__LONG_MIN	(-0x7fffffffffffffffL - 1) /* min for a long */
59
60/* Long longs have the same size but not the same type as longs. */
61			/* max for an unsigned long long */
62#define	__ULLONG_MAX	0xffffffffffffffffULL
63#define	__LLONG_MAX	0x7fffffffffffffffLL	/* max for a long long */
64#define	__LLONG_MIN	(-0x7fffffffffffffffLL - 1) /* min for a long long */
65
66#define	__SSIZE_MAX	__LONG_MAX	/* max value for a ssize_t */
67
68#define	__SIZE_T_MAX	__ULONG_MAX	/* max value for a size_t */
69
70#define	__OFF_MAX	__LONG_MAX	/* max value for an off_t */
71#define	__OFF_MIN	__LONG_MIN	/* min value for an off_t */
72
73/* Quads and longs are the same size.  Ensure they stay in sync. */
74#define	__UQUAD_MAX	(__ULONG_MAX)	/* max value for a uquad_t */
75#define	__QUAD_MAX	(__LONG_MAX)	/* max value for a quad_t */
76#define	__QUAD_MIN	(__LONG_MIN)	/* min value for a quad_t */
77
78#define	__LONG_BIT	64
79#define	__WORD_BIT	32
80
81/* Minimum signal stack size. */
82#define	__MINSIGSTKSZ	(1024 * 4)
83
84#endif /* !_MACHINE__LIMITS_H_ */