166458Sdfr/* $FreeBSD$ */ 266458Sdfr/* From: NetBSD: float.h,v 1.6 1997/07/17 21:36:03 thorpej Exp */ 366458Sdfr 4139790Simp/*- 566458Sdfr * Copyright (c) 1989, 1993 666458Sdfr * The Regents of the University of California. All rights reserved. 766458Sdfr * 866458Sdfr * Redistribution and use in source and binary forms, with or without 966458Sdfr * modification, are permitted provided that the following conditions 1066458Sdfr * are met: 1166458Sdfr * 1. Redistributions of source code must retain the above copyright 1266458Sdfr * notice, this list of conditions and the following disclaimer. 1366458Sdfr * 2. Redistributions in binary form must reproduce the above copyright 1466458Sdfr * notice, this list of conditions and the following disclaimer in the 1566458Sdfr * documentation and/or other materials provided with the distribution. 1666458Sdfr * 4. Neither the name of the University nor the names of its contributors 1766458Sdfr * may be used to endorse or promote products derived from this software 1866458Sdfr * without specific prior written permission. 1966458Sdfr * 2066458Sdfr * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 2166458Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 2266458Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2366458Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2466458Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2566458Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2666458Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2766458Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2866458Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2966458Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 3066458Sdfr * SUCH DAMAGE. 3166458Sdfr */ 3266458Sdfr 3366458Sdfr#ifndef _MACHINE_FLOAT_H_ 3466458Sdfr#define _MACHINE_FLOAT_H_ 3566458Sdfr 3666458Sdfr#include <sys/cdefs.h> 3766458Sdfr 38132383Sdas__BEGIN_DECLS 39132383Sdasextern int __flt_rounds(void); 40132383Sdas__END_DECLS 41132383Sdas 4266458Sdfr#define FLT_RADIX 2 /* b */ 43132383Sdas#define FLT_ROUNDS __flt_rounds() 44128629Sdas#if __ISO_C_VISIBLE >= 1999 45110566Smike#define FLT_EVAL_METHOD 0 /* no promotions */ 46217180Sdas#define DECIMAL_DIG 21 /* max precision in decimal digits */ 47128629Sdas#endif 4866458Sdfr 4966458Sdfr#define FLT_MANT_DIG 24 /* p */ 5066458Sdfr#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */ 5166458Sdfr#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ 52230366Sdas#define FLT_MIN_EXP (-125) /* emin */ 5366458Sdfr#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */ 54230366Sdas#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */ 5566458Sdfr#define FLT_MAX_EXP 128 /* emax */ 5666458Sdfr#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */ 5766458Sdfr#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ 58230475Sdas#if __ISO_C_VISIBLE >= 2011 59230475Sdas#define FLT_TRUE_MIN 1.40129846E-45F /* b**(emin-p) */ 60230475Sdas#define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */ 61230475Sdas#define FLT_HAS_SUBNORM 1 62230475Sdas#endif /* __ISO_C_VISIBLE >= 2011 */ 6366458Sdfr 6466458Sdfr#define DBL_MANT_DIG 53 6566458Sdfr#define DBL_EPSILON 2.2204460492503131E-16 6666458Sdfr#define DBL_DIG 15 67230366Sdas#define DBL_MIN_EXP (-1021) 6866458Sdfr#define DBL_MIN 2.2250738585072014E-308 69230366Sdas#define DBL_MIN_10_EXP (-307) 7066458Sdfr#define DBL_MAX_EXP 1024 7166458Sdfr#define DBL_MAX 1.7976931348623157E+308 7266458Sdfr#define DBL_MAX_10_EXP 308 73230475Sdas#if __ISO_C_VISIBLE >= 2011 74230475Sdas#define DBL_TRUE_MIN 4.9406564584124654E-324 75230475Sdas#define DBL_DECIMAL_DIG 17 76230475Sdas#define DBL_HAS_SUBNORM 1 77230475Sdas#endif /* __ISO_C_VISIBLE >= 2011 */ 7866458Sdfr 79112721Sdas#define LDBL_MANT_DIG 64 80112721Sdas#define LDBL_EPSILON 1.0842021724855044340E-19L 81112721Sdas#define LDBL_DIG 18 82112721Sdas#define LDBL_MIN_EXP (-16381) 83112721Sdas#define LDBL_MIN 3.3621031431120935063E-4932L 84112721Sdas#define LDBL_MIN_10_EXP (-4931) 85112721Sdas#define LDBL_MAX_EXP 16384 86112721Sdas#define LDBL_MAX 1.1897314953572317650E+4932L 87112721Sdas#define LDBL_MAX_10_EXP 4932 88230475Sdas#if __ISO_C_VISIBLE >= 2011 89230475Sdas#define LDBL_TRUE_MIN 3.6451995318824746025E-4951L 90230475Sdas#define LDBL_DECIMAL_DIG 21 91230475Sdas#define LDBL_HAS_SUBNORM 1 92230475Sdas#endif /* __ISO_C_VISIBLE >= 2011 */ 9366458Sdfr 9466458Sdfr#endif /* _MACHINE_FLOAT_H_ */ 95