float.h revision 230366
1139735Simp/*- 2129198Scognet * Copyright (c) 1989 Regents of the University of California. 3129198Scognet * All rights reserved. 4129198Scognet * 5129198Scognet * Redistribution and use in source and binary forms, with or without 6129198Scognet * modification, are permitted provided that the following conditions 7129198Scognet * are met: 8129198Scognet * 1. Redistributions of source code must retain the above copyright 9129198Scognet * notice, this list of conditions and the following disclaimer. 10129198Scognet * 2. Redistributions in binary form must reproduce the above copyright 11129198Scognet * notice, this list of conditions and the following disclaimer in the 12129198Scognet * documentation and/or other materials provided with the distribution. 13129198Scognet * 3. All advertising materials mentioning features or use of this software 14129198Scognet * must display the following acknowledgement: 15129198Scognet * This product includes software developed by the University of 16129198Scognet * California, Berkeley and its contributors. 17129198Scognet * 4. Neither the name of the University nor the names of its contributors 18129198Scognet * may be used to endorse or promote products derived from this software 19129198Scognet * without specific prior written permission. 20129198Scognet * 21129198Scognet * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22129198Scognet * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23129198Scognet * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24129198Scognet * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25129198Scognet * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26129198Scognet * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27129198Scognet * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28129198Scognet * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29129198Scognet * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30129198Scognet * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31129198Scognet * SUCH DAMAGE. 32129198Scognet * 33129198Scognet * from: @(#)float.h 7.1 (Berkeley) 5/8/90 34129198Scognet * $FreeBSD: head/sys/arm/include/float.h 230366 2012-01-20 06:51:41Z das $ 35129198Scognet */ 36129198Scognet 37129198Scognet#ifndef _MACHINE_FLOAT_H_ 38129198Scognet#define _MACHINE_FLOAT_H_ 1 39129198Scognet 40143857Scognet#include <sys/cdefs.h> 41143857Scognet 42143857Scognet__BEGIN_DECLS 43143857Scognetextern int __flt_rounds(void); 44143857Scognet__END_DECLS 45143857Scognet 46129198Scognet#define FLT_RADIX 2 /* b */ 47230191Sdas#ifndef _ARM_HARD_FLOAT 48230191Sdas#define FLT_ROUNDS __flt_rounds() 49230191Sdas#else 50230191Sdas#define FLT_ROUNDS (-1) 51230191Sdas#endif 52230198Sdas#if __ISO_C_VISIBLE >= 1999 53230198Sdas#define FLT_EVAL_METHOD 0 54143857Scognet#define DECIMAL_DIG 17 /* max precision in decimal digits */ 55230198Sdas#endif 56129198Scognet 57129198Scognet#define FLT_MANT_DIG 24 /* p */ 58129198Scognet#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */ 59129198Scognet#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ 60129198Scognet#define FLT_MIN_EXP (-125) /* emin */ 61129198Scognet#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */ 62129198Scognet#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */ 63129198Scognet#define FLT_MAX_EXP 128 /* emax */ 64129198Scognet#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */ 65129198Scognet#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ 66129198Scognet 67129198Scognet#define DBL_MANT_DIG 53 68129198Scognet#define DBL_EPSILON 2.2204460492503131E-16 69129198Scognet#define DBL_DIG 15 70129198Scognet#define DBL_MIN_EXP (-1021) 71129198Scognet#define DBL_MIN 2.2250738585072014E-308 72129198Scognet#define DBL_MIN_10_EXP (-307) 73129198Scognet#define DBL_MAX_EXP 1024 74129198Scognet#define DBL_MAX 1.7976931348623157E+308 75129198Scognet#define DBL_MAX_10_EXP 308 76129198Scognet 77143857Scognet#define LDBL_MANT_DIG DBL_MANT_DIG 78230366Sdas#define LDBL_EPSILON ((long double)DBL_EPSILON) 79143857Scognet#define LDBL_DIG DBL_DIG 80143857Scognet#define LDBL_MIN_EXP DBL_MIN_EXP 81230366Sdas#define LDBL_MIN ((long double)DBL_MIN) 82143857Scognet#define LDBL_MIN_10_EXP DBL_MIN_10_EXP 83143857Scognet#define LDBL_MAX_EXP DBL_MAX_EXP 84230366Sdas#define LDBL_MAX ((long double)DBL_MAX) 85143857Scognet#define LDBL_MAX_10_EXP DBL_MAX_10_EXP 86129198Scognet#endif /* _MACHINE_FLOAT_H_ */ 87