_limits.h revision 330897
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 * 4. 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 * $FreeBSD: stable/11/sys/powerpc/include/_limits.h 330897 2018-03-14 03:19:51Z eadler $ 33 */ 34 35#ifndef _MACHINE__LIMITS_H_ 36#define _MACHINE__LIMITS_H_ 37 38/* 39 * According to ANSI (section 2.2.4.2), the values below must be usable by 40 * #if preprocessing directives. Additionally, the expression must have the 41 * same type as would an expression that is an object of the corresponding 42 * type converted according to the integral promotions. The subtraction for 43 * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an 44 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). 45 */ 46 47#define __CHAR_BIT 8 /* number of bits in a char */ 48 49#define __SCHAR_MAX 0x7f /* max value for a signed char */ 50#define __SCHAR_MIN (-0x7f - 1) /* min value for a signed char */ 51 52#define __UCHAR_MAX 0xff /* max value for an unsigned char */ 53 54#define __USHRT_MAX 0xffff /* max value for an unsigned short */ 55#define __SHRT_MAX 0x7fff /* max value for a short */ 56#define __SHRT_MIN (-0x7fff - 1) /* min value for a short */ 57 58#define __UINT_MAX 0xffffffff /* max value for an unsigned int */ 59#define __INT_MAX 0x7fffffff /* max value for an int */ 60#define __INT_MIN (-0x7fffffff - 1) /* min value for an int */ 61 62#ifdef __LP64__ 63#define __ULONG_MAX 0xffffffffffffffff 64#define __LONG_MAX 0x7fffffffffffffff 65#define __LONG_MIN (-0x7fffffffffffffff - 1) 66#define __LONG_BIT 64 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 (-0x7fffffffL - 1) /* min value for a long */ 71#define __LONG_BIT 32 72#endif 73 74#define __ULLONG_MAX 0xffffffffffffffffULL 75#define __LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */ 76#define __LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */ 77 78#ifdef __LP64__ 79#define __SSIZE_MAX __LONG_MAX /* max value for a ssize_t */ 80#define __SIZE_T_MAX __ULONG_MAX /* max value for a size_t */ 81#else 82#define __SSIZE_MAX __INT_MAX /* max value for a ssize_t */ 83#define __SIZE_T_MAX __UINT_MAX /* max value for a size_t */ 84#endif 85 86#define __OFF_MAX __LLONG_MAX /* max value for an off_t */ 87#define __OFF_MIN __LLONG_MIN /* min value for an off_t */ 88 89/* Quads and long longs are the same size. Ensure they stay in sync. */ 90#define __UQUAD_MAX __ULLONG_MAX /* max value for a uquad_t */ 91#define __QUAD_MAX __LLONG_MAX /* max value for a quad_t */ 92#define __QUAD_MIN __LLONG_MIN /* min value for a quad_t */ 93 94#define __WORD_BIT 32 95 96/* Minimum signal stack size. */ 97#define __MINSIGSTKSZ (512 * 4) 98 99#endif /* !_MACHINE__LIMITS_H_ */ 100