float.h revision 128629
14Srgrimes/* 24Srgrimes * Copyright (c) 1989 Regents of the University of California. 34Srgrimes * All rights reserved. 44Srgrimes * 54Srgrimes * Redistribution and use in source and binary forms, with or without 64Srgrimes * modification, are permitted provided that the following conditions 74Srgrimes * are met: 84Srgrimes * 1. Redistributions of source code must retain the above copyright 94Srgrimes * notice, this list of conditions and the following disclaimer. 104Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 114Srgrimes * notice, this list of conditions and the following disclaimer in the 124Srgrimes * documentation and/or other materials provided with the distribution. 134Srgrimes * 4. Neither the name of the University nor the names of its contributors 144Srgrimes * may be used to endorse or promote products derived from this software 154Srgrimes * without specific prior written permission. 164Srgrimes * 174Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 184Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 194Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 204Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 214Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 224Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 234Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 244Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 254Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 264Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 274Srgrimes * SUCH DAMAGE. 284Srgrimes * 29621Srgrimes * from: @(#)float.h 7.1 (Berkeley) 5/8/90 3050477Speter * $FreeBSD: head/sys/amd64/include/float.h 128629 2004-04-25 02:36:29Z das $ 314Srgrimes */ 324Srgrimes 33719Swollman#ifndef _MACHINE_FLOAT_H_ 34719Swollman#define _MACHINE_FLOAT_H_ 1 35719Swollman 36128629Sdas#include <sys/cdefs.h> 37128629Sdas 384Srgrimes#define FLT_RADIX 2 /* b */ 394Srgrimes#define FLT_ROUNDS 1 /* FP addition rounds to nearest */ 40128629Sdas#if __ISO_C_VISIBLE >= 1999 41110566Smike#define FLT_EVAL_METHOD (-1) /* i387 semantics are...interesting */ 42110566Smike#define DECIMAL_DIG 21 /* max precision in decimal digits */ 43128629Sdas#endif 444Srgrimes 454Srgrimes#define FLT_MANT_DIG 24 /* p */ 464Srgrimes#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */ 474Srgrimes#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ 4880Snate#define FLT_MIN_EXP (-125) /* emin */ 494Srgrimes#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */ 5080Snate#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */ 514Srgrimes#define FLT_MAX_EXP 128 /* emax */ 524Srgrimes#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */ 534Srgrimes#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ 544Srgrimes 554Srgrimes#define DBL_MANT_DIG 53 564Srgrimes#define DBL_EPSILON 2.2204460492503131E-16 574Srgrimes#define DBL_DIG 15 5880Snate#define DBL_MIN_EXP (-1021) 5979Snate#define DBL_MIN 2.2250738585072014E-308 6080Snate#define DBL_MIN_10_EXP (-307) 614Srgrimes#define DBL_MAX_EXP 1024 6279Snate#define DBL_MAX 1.7976931348623157E+308 634Srgrimes#define DBL_MAX_10_EXP 308 644Srgrimes 65105910Simp 66105910Simp#define LDBL_MANT_DIG 64 67105910Simp#define LDBL_EPSILON 1.0842021724855044340E-19L 68105910Simp#define LDBL_DIG 18 69105910Simp#define LDBL_MIN_EXP (-16381) 70105910Simp#define LDBL_MIN 3.3621031431120935063E-4932L 71105910Simp#define LDBL_MIN_10_EXP (-4931) 72105910Simp#define LDBL_MAX_EXP 16384 73105910Simp#define LDBL_MAX 1.1897314953572317650E+4932L 74105910Simp#define LDBL_MAX_10_EXP 4932 75719Swollman#endif /* _MACHINE_FLOAT_H_ */ 76