00001 /*- 00002 * Copyright (c) 1988, 1993 00003 * The Regents of the University of California. All rights reserved. 00004 * 00005 * Redistribution and use in source and binary forms, with or without 00006 * modification, are permitted provided that the following conditions 00007 * are met: 00008 * 1. Redistributions of source code must retain the above copyright 00009 * notice, this list of conditions and the following disclaimer. 00010 * 2. Redistributions in binary form must reproduce the above copyright 00011 * notice, this list of conditions and the following disclaimer in the 00012 * documentation and/or other materials provided with the distribution. 00013 * 4. Neither the name of the University nor the names of its contributors 00014 * may be used to endorse or promote products derived from this software 00015 * without specific prior written permission. 00016 * 00017 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00018 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00021 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00022 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00023 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00024 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00025 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00026 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00027 * SUCH DAMAGE. 00028 * 00029 * @(#)limits.h 8.3 (Berkeley) 1/4/94 00030 * $FreeBSD: src/sys/i386/include/_limits.h,v 1.27 2005/01/06 22:18:15 imp Exp $ 00031 */ 00032 00033 #ifndef _MACHINE__LIMITS_H_ 00034 #define _MACHINE__LIMITS_H_ 00035 00036 /* 00037 * According to ANSI (section 2.2.4.2), the values below must be usable by 00038 * #if preprocessing directives. Additionally, the expression must have the 00039 * same type as would an expression that is an object of the corresponding 00040 * type converted according to the integral promotions. The subtraction for 00041 * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an 00042 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). 00043 * These numbers are for the default configuration of gcc. They work for 00044 * some other compilers as well, but this should not be depended on. 00045 */ 00046 00047 #define __CHAR_BIT 8 /* number of bits in a char */ 00048 00049 #define __SCHAR_MAX 0x7f /* max value for a signed char */ 00050 #define __SCHAR_MIN (-0x7f - 1) /* min value for a signed char */ 00051 00052 #define __UCHAR_MAX 0xff /* max value for an unsigned char */ 00053 00054 #define __USHRT_MAX 0xffff /* max value for an unsigned short */ 00055 #define __SHRT_MAX 0x7fff /* max value for a short */ 00056 #define __SHRT_MIN (-0x7fff - 1) /* min value for a short */ 00057 00058 #define __UINT_MAX 0xffffffffU /* max value for an unsigned int */ 00059 #define __INT_MAX 0x7fffffff /* max value for an int */ 00060 #define __INT_MIN (-0x7fffffff - 1) /* min value for an int */ 00061 00062 /* Bad hack for gcc configured to give 64-bit longs. */ 00063 #ifdef _LARGE_LONG 00064 #define __ULONG_MAX 0xffffffffffffffffUL 00065 #define __LONG_MAX 0x7fffffffffffffffL 00066 #define __LONG_MIN (-0x7fffffffffffffffL - 1) 00067 #else 00068 #define __ULONG_MAX 0xffffffffUL /* max value for an unsigned long */ 00069 #define __LONG_MAX 0x7fffffffL /* max value for a long */ 00070 #define __LONG_MIN (-0x7fffffffL - 1) /* min value for a long */ 00071 #endif 00072 00073 /* max value for an unsigned long long */ 00074 #define __ULLONG_MAX 0xffffffffffffffffULL 00075 #define __LLONG_MAX 0x7fffffffffffffffLL /* max value for a long long */ 00076 #define __LLONG_MIN (-0x7fffffffffffffffLL - 1) /* min for a long long */ 00077 00078 #define __SSIZE_MAX __INT_MAX /* max value for a ssize_t */ 00079 00080 #define __SIZE_T_MAX __UINT_MAX /* max value for a size_t */ 00081 00082 #define __OFF_MAX __LLONG_MAX /* max value for an off_t */ 00083 #define __OFF_MIN __LLONG_MIN /* min value for an off_t */ 00084 00085 /* Quads and long longs are the same size. Ensure they stay in sync. */ 00086 #define __UQUAD_MAX __ULLONG_MAX /* max value for a uquad_t */ 00087 #define __QUAD_MAX __LLONG_MAX /* max value for a quad_t */ 00088 #define __QUAD_MIN __LLONG_MIN /* min value for a quad_t */ 00089 00090 #ifdef _LARGE_LONG 00091 #define __LONG_BIT 64 00092 #else 00093 #define __LONG_BIT 32 00094 #endif 00095 #define __WORD_BIT 32 00096 00097 #endif /* !_MACHINE__LIMITS_H_ */