1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1992, 1993, 2001 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)float.h 8.1 (Berkeley) 6/11/93 36 * from: NetBSD: float.h,v 1.3 2001/09/21 20:48:02 eeh Exp 37 * $FreeBSD$ 38 */ 39 40 #ifndef _MACHINE_FLOAT_H_ 41 #define _MACHINE_FLOAT_H_ 42 43 #include <sys/cdefs.h> 44 45 __BEGIN_DECLS 46 extern int __flt_rounds(void); 47 __END_DECLS 48 49 #define FLT_RADIX 2 /* b */ 50 #define FLT_ROUNDS __flt_rounds() 51 #if __ISO_C_VISIBLE >= 1999 52 #define FLT_EVAL_METHOD 0 /* no promotion */ 53 #define DECIMAL_DIG 36 /* max precision in decimal digits */ 54 #endif 55 56 #define FLT_MANT_DIG 24 /* p */ 57 #define FLT_EPSILON 1.19209290E-7F /* b**(1-p) */ 58 #define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ 59 #define FLT_MIN_EXP (-125) /* emin */ 60 #define FLT_MIN 1.17549435E-38F /* b**(emin-1) */ 61 #define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */ 62 #define FLT_MAX_EXP 128 /* emax */ 63 #define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */ 64 #define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ 65 #if __ISO_C_VISIBLE >= 2011 66 #define FLT_TRUE_MIN 1.40129846E-45F /* b**(emin-p) */ 67 #define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */ 68 #define FLT_HAS_SUBNORM 1 69 #endif /* __ISO_C_VISIBLE >= 2011 */ 70 71 #define DBL_MANT_DIG 53 72 #define DBL_EPSILON 2.2204460492503131E-16 73 #define DBL_DIG 15 74 #define DBL_MIN_EXP (-1021) 75 #define DBL_MIN 2.2250738585072014E-308 76 #define DBL_MIN_10_EXP (-307) 77 #define DBL_MAX_EXP 1024 78 #define DBL_MAX 1.7976931348623157E+308 79 #define DBL_MAX_10_EXP 308 80 #if __ISO_C_VISIBLE >= 2011 81 #define DBL_TRUE_MIN 4.9406564584124654E-324 82 #define DBL_DECIMAL_DIG 17 83 #define DBL_HAS_SUBNORM 1 84 #endif /* __ISO_C_VISIBLE >= 2011 */ 85 86 #define LDBL_MANT_DIG 113 87 #define LDBL_EPSILON 1.925929944387235853055977942584927319E-34L 88 #define LDBL_DIG 33 89 #define LDBL_MIN_EXP (-16381) 90 #define LDBL_MIN 3.362103143112093506262677817321752603E-4932L 91 #define LDBL_MIN_10_EXP (-4931) 92 #define LDBL_MAX_EXP (+16384) 93 #define LDBL_MAX 1.189731495357231765085759326628007016E+4932L 94 #define LDBL_MAX_10_EXP (+4932) 95 #if __ISO_C_VISIBLE >= 2011 96 #define LDBL_TRUE_MIN 6.475175119438025110924438958227646552E-4966L 97 #define LDBL_DECIMAL_DIG 36 98 #define LDBL_HAS_SUBNORM 1 99 #endif /* __ISO_C_VISIBLE >= 2011 */ 100 101 #endif /* _MACHINE_FLOAT_H_ */ 102