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 * $FreeBSD$ 28 */ 29 30 #ifndef _MACHINE__LIMITS_H_ 31 #define _MACHINE__LIMITS_H_ 32 33 /* 34 * According to ANSI (section 2.2.4.2), the values below must be usable by 35 * #if preprocessing directives. Additionally, the expression must have the 36 * same type as would an expression that is an object of the corresponding 37 * type converted according to the integral promotions. The subtraction for 38 * INT_MIN, etc., is so the value is not unsigned; e.g., 0x80000000 is an 39 * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). 40 */ 41 42 #define __CHAR_BIT 8 /* number of bits in a char */ 43 44 #define __SCHAR_MAX 0x7f /* max value for a signed char */ 45 #define __SCHAR_MIN (-0x7f-1) /* min value for a signed char */ 46 47 #define __UCHAR_MAX 0xff /* max value for an unsigned char */ 48 49 #define __USHRT_MAX 0xffff /* max value for an unsigned short */ 50 #define __SHRT_MAX 0x7fff /* max value for a short */ 51 #define __SHRT_MIN (-0x7fff-1) /* min value for a short */ 52 53 #define __UINT_MAX 0xffffffff /* max value for an unsigned int */ 54 #define __INT_MAX 0x7fffffff /* max value for an int */ 55 #define __INT_MIN (-0x7fffffff-1) /* min value for an int */ 56 57 #define __ULONG_MAX 0xffffffffffffffff /* max for an unsigned long */ 58 #define __LONG_MAX 0x7fffffffffffffff /* max for a long */ 59 #define __LONG_MIN (-0x7fffffffffffffff-1) /* min for a long */ 60 61 /* Long longs have the same size but not the same type as longs. */ 62 /* max for an unsigned long long */ 63 #define __ULLONG_MAX 0xffffffffffffffffULL 64 #define __LLONG_MAX 0x7fffffffffffffffLL /* max for a long long */ 65 #define __LLONG_MIN (-0x7fffffffffffffffLL-1) /* min for a long long */ 66 67 #define __SSIZE_MAX __LONG_MAX /* max value for a ssize_t */ 68 69 #define __SIZE_T_MAX __ULONG_MAX /* max value for a size_t */ 70 71 #define __OFF_MAX __LONG_MAX /* max value for an off_t */ 72 #define __OFF_MIN __LONG_MIN /* min value for an off_t */ 73 74 /* Quads and longs are the same size. Ensure they stay in sync. */ 75 #define __UQUAD_MAX (__ULONG_MAX) /* max value for a uquad_t */ 76 #define __QUAD_MAX (__LONG_MAX) /* max value for a quad_t */ 77 #define __QUAD_MIN (__LONG_MIN) /* min value for a quad_t */ 78 79 #define __LONG_BIT 64 80 #define __WORD_BIT 32 81 82 /* Minimum signal stack size. */ 83 #define __MINSIGSTKSZ (1024 * 4) 84 85 #endif /* !_MACHINE__LIMITS_H_ */ 86