master
1/* $NetBSD: limits.h,v 1.20 2019/01/21 20:28:18 dholland Exp $ */
2
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 _POWERPC_LIMITS_H_
35#define _POWERPC_LIMITS_H_
36
37#include <sys/featuretest.h>
38
39#define CHAR_BIT 8 /* number of bits in a char */
40
41/*
42 * According to ANSI (section 2.2.4.2), the values below must be usable by
43 * #if preprocessing directives. Additionally, the expression must have the
44 * same type as would an expression that is an object of the corresponding
45 * type converted according to the integral promotions. The subtraction for
46 * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an
47 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2).
48 * These numbers work for pcc as well. The UINT_MAX and ULONG_MAX values
49 * are written as hex so that GCC will be quiet about large integer constants.
50 */
51#define UCHAR_MAX 0xff /* max value for an unsigned char */
52#define SCHAR_MAX 0x7f /* max value for a signed char */
53#define SCHAR_MIN (-0x7f-1) /* min value for a signed char */
54
55#define USHRT_MAX 0xffff /* max value for an unsigned short */
56#define SHRT_MAX 0x7fff /* max value for a short */
57#define SHRT_MIN (-0x7fff-1) /* min value for a short */
58
59#define UINT_MAX 0xffffffffU /* max value for an unsigned int */
60#define INT_MAX 0x7fffffff /* max value for an int */
61#define INT_MIN (-0x7fffffff-1) /* min value for an int */
62
63#ifdef _LP64
64#define ULONG_MAX 0xffffffffffffffffUL /* max for an unsigned long */
65#define LONG_MAX 0x7fffffffffffffffL /* max for a long */
66#define LONG_MIN (-0x7fffffffffffffffL-1) /* min for a long */
67#else
68#define ULONG_MAX 0xffffffffUL /* max value for an unsigned long */
69#define LONG_MAX 0x7fffffffL /* max value for a long */
70#define LONG_MIN (-0x7fffffff-1) /* min value for a long */
71#endif
72
73#if defined(_ISOC99_SOURCE) || (__STDC_VERSION__ - 0) >= 199901L || \
74 defined(_NETBSD_SOURCE)
75#define ULLONG_MAX 0xffffffffffffffffULL /* max unsigned long long */
76#define LLONG_MAX 0x7fffffffffffffffLL /* max signed long long */
77#define LLONG_MIN (-0x7fffffffffffffffLL-1) /* min signed long long */
78#endif
79
80#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE) || \
81 defined(_NETBSD_SOURCE)
82#ifdef _LP64
83#define SSIZE_MAX LONG_MAX /* max value for a ssize_t */
84#else
85#define SSIZE_MAX INT_MAX /* max value for a ssize_t */
86#endif
87
88#if defined(_NETBSD_SOURCE)
89#ifdef _LP64
90#define SSIZE_MIN LONG_MIN /* min value for a ssize_t */
91#define SIZE_T_MAX ULONG_MAX /* max value for a size_t */
92#else
93#define SSIZE_MIN INT_MIN /* min value for a ssize_t */
94#define SIZE_T_MAX UINT_MAX /* max value for a size_t */
95#endif
96
97#ifdef _LP64
98/* Quads and longs are the same on LP64. */
99#define UQUAD_MAX (ULONG_MAX)
100#define QUAD_MAX (LONG_MAX)
101#define QUAD_MIN (LONG_MIN)
102#else
103/* GCC requires that quad constants be written as expressions. */
104#define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */
105 /* max value for a quad_t */
106#define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1))
107#define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */
108#endif
109
110#endif /* _NETBSD_SOURCE */
111#endif /* _POSIX_C_SOURCE || _XOPEN_SOURCE || _NETBSD_SOURCE */
112
113#if defined(_XOPEN_SOURCE) || defined(_NETBSD_SOURCE)
114#ifdef _LP64
115#define LONG_BIT 64
116#else
117#define LONG_BIT 32
118#endif
119#define WORD_BIT 32
120
121#define DBL_DIG __DBL_DIG__
122#define DBL_MAX __DBL_MAX__
123#define DBL_MIN __DBL_MIN__
124
125#define FLT_DIG __FLT_DIG__
126#define FLT_MAX __FLT_MAX__
127#define FLT_MIN __FLT_MIN__
128#endif
129
130#endif /* _POWERPC_LIMITS_H_ */