float.h revision 128629
159243Sobrien/* 259243Sobrien * Copyright (c) 1989 Regents of the University of California. 359243Sobrien * All rights reserved. 459243Sobrien * 559243Sobrien * Redistribution and use in source and binary forms, with or without 659243Sobrien * modification, are permitted provided that the following conditions 759243Sobrien * are met: 859243Sobrien * 1. Redistributions of source code must retain the above copyright 959243Sobrien * notice, this list of conditions and the following disclaimer. 1059243Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1159243Sobrien * notice, this list of conditions and the following disclaimer in the 1259243Sobrien * documentation and/or other materials provided with the distribution. 1359243Sobrien * 4. Neither the name of the University nor the names of its contributors 1459243Sobrien * may be used to endorse or promote products derived from this software 1559243Sobrien * without specific prior written permission. 1659243Sobrien * 1759243Sobrien * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 1859243Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1959243Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2059243Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 2159243Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2259243Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2359243Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2459243Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2559243Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2659243Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2759243Sobrien * SUCH DAMAGE. 2859243Sobrien * 2959243Sobrien * from: @(#)float.h 7.1 (Berkeley) 5/8/90 3059243Sobrien * $FreeBSD: head/sys/amd64/include/float.h 128629 2004-04-25 02:36:29Z das $ 3159243Sobrien */ 3259243Sobrien 3359243Sobrien#ifndef _MACHINE_FLOAT_H_ 3459243Sobrien#define _MACHINE_FLOAT_H_ 1 3559243Sobrien 3659243Sobrien#include <sys/cdefs.h> 3759243Sobrien 3859243Sobrien#define FLT_RADIX 2 /* b */ 3959243Sobrien#define FLT_ROUNDS 1 /* FP addition rounds to nearest */ 4059243Sobrien#if __ISO_C_VISIBLE >= 1999 4159243Sobrien#define FLT_EVAL_METHOD (-1) /* i387 semantics are...interesting */ 4259243Sobrien#define DECIMAL_DIG 21 /* max precision in decimal digits */ 4359243Sobrien#endif 4459243Sobrien 4559243Sobrien#define FLT_MANT_DIG 24 /* p */ 4659243Sobrien#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */ 4759243Sobrien#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ 4859243Sobrien#define FLT_MIN_EXP (-125) /* emin */ 4959243Sobrien#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */ 5059243Sobrien#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */ 5159243Sobrien#define FLT_MAX_EXP 128 /* emax */ 5259243Sobrien#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */ 5359243Sobrien#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ 5459243Sobrien 5559243Sobrien#define DBL_MANT_DIG 53 5659243Sobrien#define DBL_EPSILON 2.2204460492503131E-16 5759243Sobrien#define DBL_DIG 15 5859243Sobrien#define DBL_MIN_EXP (-1021) 5959243Sobrien#define DBL_MIN 2.2250738585072014E-308 6059243Sobrien#define DBL_MIN_10_EXP (-307) 6159243Sobrien#define DBL_MAX_EXP 1024 6259243Sobrien#define DBL_MAX 1.7976931348623157E+308 6359243Sobrien#define DBL_MAX_10_EXP 308 6459243Sobrien 6559243Sobrien 6659243Sobrien#define LDBL_MANT_DIG 64 6759243Sobrien#define LDBL_EPSILON 1.0842021724855044340E-19L 6859243Sobrien#define LDBL_DIG 18 6959243Sobrien#define LDBL_MIN_EXP (-16381) 7059243Sobrien#define LDBL_MIN 3.3621031431120935063E-4932L 7159243Sobrien#define LDBL_MIN_10_EXP (-4931) 7259243Sobrien#define LDBL_MAX_EXP 16384 7359243Sobrien#define LDBL_MAX 1.1897314953572317650E+4932L 7459243Sobrien#define LDBL_MAX_10_EXP 4932 7559243Sobrien#endif /* _MACHINE_FLOAT_H_ */ 7659243Sobrien