15b81b6b3SRodney W. Grimes /* 226f9a767SRodney W. Grimes * Copyright (c) 1988, 1993 326f9a767SRodney W. Grimes * The Regents of the University of California. All rights reserved. 45b81b6b3SRodney W. Grimes * 55b81b6b3SRodney W. Grimes * Redistribution and use in source and binary forms, with or without 65b81b6b3SRodney W. Grimes * modification, are permitted provided that the following conditions 75b81b6b3SRodney W. Grimes * are met: 85b81b6b3SRodney W. Grimes * 1. Redistributions of source code must retain the above copyright 95b81b6b3SRodney W. Grimes * notice, this list of conditions and the following disclaimer. 105b81b6b3SRodney W. Grimes * 2. Redistributions in binary form must reproduce the above copyright 115b81b6b3SRodney W. Grimes * notice, this list of conditions and the following disclaimer in the 125b81b6b3SRodney W. Grimes * documentation and/or other materials provided with the distribution. 135b81b6b3SRodney W. Grimes * 3. All advertising materials mentioning features or use of this software 145b81b6b3SRodney W. Grimes * must display the following acknowledgement: 155b81b6b3SRodney W. Grimes * This product includes software developed by the University of 165b81b6b3SRodney W. Grimes * California, Berkeley and its contributors. 175b81b6b3SRodney W. Grimes * 4. Neither the name of the University nor the names of its contributors 185b81b6b3SRodney W. Grimes * may be used to endorse or promote products derived from this software 195b81b6b3SRodney W. Grimes * without specific prior written permission. 205b81b6b3SRodney W. Grimes * 215b81b6b3SRodney W. Grimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 225b81b6b3SRodney W. Grimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 235b81b6b3SRodney W. Grimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 245b81b6b3SRodney W. Grimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 255b81b6b3SRodney W. Grimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 265b81b6b3SRodney W. Grimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 275b81b6b3SRodney W. Grimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 285b81b6b3SRodney W. Grimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 295b81b6b3SRodney W. Grimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 305b81b6b3SRodney W. Grimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 315b81b6b3SRodney W. Grimes * SUCH DAMAGE. 325b81b6b3SRodney W. Grimes * 3326f9a767SRodney W. Grimes * @(#)limits.h 8.3 (Berkeley) 1/4/94 345b81b6b3SRodney W. Grimes */ 355b81b6b3SRodney W. Grimes 366e393973SGarrett Wollman #ifndef _MACHINE_LIMITS_H_ 376e393973SGarrett Wollman #define _MACHINE_LIMITS_H_ 1 386e393973SGarrett Wollman 395b81b6b3SRodney W. Grimes #define CHAR_BIT 8 /* number of bits in a char */ 4026f9a767SRodney W. Grimes #define MB_LEN_MAX 6 /* Allow 31 bit UTF2 */ 415b81b6b3SRodney W. Grimes 425b81b6b3SRodney W. Grimes 4326f9a767SRodney W. Grimes #define CLK_TCK 128 /* ticks per second */ 445b81b6b3SRodney W. Grimes 4526f9a767SRodney W. Grimes /* 4626f9a767SRodney W. Grimes * According to ANSI (section 2.2.4.2), the values below must be usable by 4726f9a767SRodney W. Grimes * #if preprocessing directives. Additionally, the expression must have the 4826f9a767SRodney W. Grimes * same type as would an expression that is an object of the corresponding 4926f9a767SRodney W. Grimes * type converted according to the integral promotions. The subtraction for 5026f9a767SRodney W. Grimes * INT_MIN and LONG_MIN is so the value is not unsigned; 2147483648 is an 5126f9a767SRodney W. Grimes * unsigned int for 32-bit two's complement ANSI compilers (section 3.1.3.2). 5226f9a767SRodney W. Grimes * These numbers work for pcc as well. The UINT_MAX and ULONG_MAX values 5326f9a767SRodney W. Grimes * are written as hex so that GCC will be quiet about large integer constants. 5426f9a767SRodney W. Grimes */ 5526f9a767SRodney W. Grimes #define SCHAR_MAX 127 /* min value for a signed char */ 5626f9a767SRodney W. Grimes #define SCHAR_MIN (-128) /* max value for a signed char */ 5726f9a767SRodney W. Grimes 5826f9a767SRodney W. Grimes #define UCHAR_MAX 255 /* max value for an unsigned char */ 5926f9a767SRodney W. Grimes #define CHAR_MAX 127 /* max value for a char */ 6026f9a767SRodney W. Grimes #define CHAR_MIN (-128) /* min value for a char */ 6126f9a767SRodney W. Grimes 6226f9a767SRodney W. Grimes #define USHRT_MAX 65535 /* max value for an unsigned short */ 6326f9a767SRodney W. Grimes #define SHRT_MAX 32767 /* max value for a short */ 6426f9a767SRodney W. Grimes #define SHRT_MIN (-32768) /* min value for a short */ 655b81b6b3SRodney W. Grimes 665b81b6b3SRodney W. Grimes #define UINT_MAX 0xffffffff /* max value for an unsigned int */ 6726f9a767SRodney W. Grimes #define INT_MAX 2147483647 /* max value for an int */ 6826f9a767SRodney W. Grimes #define INT_MIN (-2147483647-1) /* min value for an int */ 695b81b6b3SRodney W. Grimes 705b81b6b3SRodney W. Grimes #define ULONG_MAX 0xffffffff /* max value for an unsigned long */ 7126f9a767SRodney W. Grimes #define LONG_MAX 2147483647 /* max value for a long */ 7226f9a767SRodney W. Grimes #define LONG_MIN (-2147483647-1) /* min value for a long */ 7390d795a1SAndrew Moore 7426f9a767SRodney W. Grimes #if !defined(_ANSI_SOURCE) 7526f9a767SRodney W. Grimes #define SSIZE_MAX INT_MAX /* max value for a ssize_t */ 7626f9a767SRodney W. Grimes 7726f9a767SRodney W. Grimes #if !defined(_POSIX_SOURCE) 7826f9a767SRodney W. Grimes #define SIZE_T_MAX UINT_MAX /* max value for a size_t */ 7926f9a767SRodney W. Grimes 8026f9a767SRodney W. Grimes /* GCC requires that quad constants be written as expressions. */ 8126f9a767SRodney W. Grimes #define UQUAD_MAX ((u_quad_t)0-1) /* max value for a uquad_t */ 8226f9a767SRodney W. Grimes /* max value for a quad_t */ 8326f9a767SRodney W. Grimes #define QUAD_MAX ((quad_t)(UQUAD_MAX >> 1)) 8426f9a767SRodney W. Grimes #define QUAD_MIN (-QUAD_MAX-1) /* min value for a quad_t */ 8526f9a767SRodney W. Grimes 8626f9a767SRodney W. Grimes #endif /* !_POSIX_SOURCE */ 8726f9a767SRodney W. Grimes #endif /* !_ANSI_SOURCE */ 8890d795a1SAndrew Moore 896e393973SGarrett Wollman #endif /* _MACHINE_LIMITS_H_ */ 90