1 /*- 2 * Copyright (c) 1992, 1993, 2001 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This software was developed by the Computer Systems Engineering group 6 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 7 * contributed to Berkeley. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)float.h 8.1 (Berkeley) 6/11/93 34 * from: NetBSD: float.h,v 1.3 2001/09/21 20:48:02 eeh Exp 35 * $FreeBSD: stable/10/sys/sparc64/include/float.h 230475 2012-01-23 06:36:41Z das $ 36 */ 37 38 #ifndef _MACHINE_FLOAT_H_ 39 #define _MACHINE_FLOAT_H_ 40 41 #include <sys/cdefs.h> 42 43 __BEGIN_DECLS 44 extern int __flt_rounds(void); 45 __END_DECLS 46 47 #define FLT_RADIX 2 /* b */ 48 #define FLT_ROUNDS __flt_rounds() 49 #if __ISO_C_VISIBLE >= 1999 50 #define FLT_EVAL_METHOD 0 /* no promotion */ 51 #define DECIMAL_DIG 36 /* max precision in decimal digits */ 52 #endif 53 54 #define FLT_MANT_DIG 24 /* p */ 55 #define FLT_EPSILON 1.19209290E-7F /* b**(1-p) */ 56 #define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ 57 #define FLT_MIN_EXP (-125) /* emin */ 58 #define FLT_MIN 1.17549435E-38F /* b**(emin-1) */ 59 #define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */ 60 #define FLT_MAX_EXP 128 /* emax */ 61 #define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */ 62 #define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ 63 #if __ISO_C_VISIBLE >= 2011 64 #define FLT_TRUE_MIN 1.40129846E-45F /* b**(emin-p) */ 65 #define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */ 66 #define FLT_HAS_SUBNORM 1 67 #endif /* __ISO_C_VISIBLE >= 2011 */ 68 69 #define DBL_MANT_DIG 53 70 #define DBL_EPSILON 2.2204460492503131E-16 71 #define DBL_DIG 15 72 #define DBL_MIN_EXP (-1021) 73 #define DBL_MIN 2.2250738585072014E-308 74 #define DBL_MIN_10_EXP (-307) 75 #define DBL_MAX_EXP 1024 76 #define DBL_MAX 1.7976931348623157E+308 77 #define DBL_MAX_10_EXP 308 78 #if __ISO_C_VISIBLE >= 2011 79 #define DBL_TRUE_MIN 4.9406564584124654E-324 80 #define DBL_DECIMAL_DIG 17 81 #define DBL_HAS_SUBNORM 1 82 #endif /* __ISO_C_VISIBLE >= 2011 */ 83 84 #define LDBL_MANT_DIG 113 85 #define LDBL_EPSILON 1.925929944387235853055977942584927319E-34L 86 #define LDBL_DIG 33 87 #define LDBL_MIN_EXP (-16381) 88 #define LDBL_MIN 3.362103143112093506262677817321752603E-4932L 89 #define LDBL_MIN_10_EXP (-4931) 90 #define LDBL_MAX_EXP (+16384) 91 #define LDBL_MAX 1.189731495357231765085759326628007016E+4932L 92 #define LDBL_MAX_10_EXP (+4932) 93 #if __ISO_C_VISIBLE >= 2011 94 #define LDBL_TRUE_MIN 6.475175119438025110924438958227646552E-4966L 95 #define LDBL_DECIMAL_DIG 36 96 #define LDBL_HAS_SUBNORM 1 97 #endif /* __ISO_C_VISIBLE >= 2011 */ 98 99 #endif /* _MACHINE_FLOAT_H_ */ 100