float.h revision 110566
1/* 2 * Copyright (c) 1989 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 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 * from: @(#)float.h 7.1 (Berkeley) 5/8/90 34 * $FreeBSD: head/sys/i386/include/float.h 110566 2003-02-08 20:37:55Z mike $ 35 */ 36 37#ifndef _MACHINE_FLOAT_H_ 38#define _MACHINE_FLOAT_H_ 1 39 40#define FLT_RADIX 2 /* b */ 41#define FLT_ROUNDS 1 /* FP addition rounds to nearest */ 42#define FLT_EVAL_METHOD (-1) /* i387 semantics are...interesting */ 43#define DECIMAL_DIG 21 /* max precision in decimal digits */ 44 45#define FLT_MANT_DIG 24 /* p */ 46#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */ 47#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ 48#define FLT_MIN_EXP (-125) /* emin */ 49#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */ 50#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */ 51#define FLT_MAX_EXP 128 /* emax */ 52#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */ 53#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ 54 55#define DBL_MANT_DIG 53 56#define DBL_EPSILON 2.2204460492503131E-16 57#define DBL_DIG 15 58#define DBL_MIN_EXP (-1021) 59#define DBL_MIN 2.2250738585072014E-308 60#define DBL_MIN_10_EXP (-307) 61#define DBL_MAX_EXP 1024 62#define DBL_MAX 1.7976931348623157E+308 63#define DBL_MAX_10_EXP 308 64 65 66#define LDBL_MANT_DIG 64 67#define LDBL_EPSILON 1.0842021724855044340E-19L 68#define LDBL_DIG 18 69#define LDBL_MIN_EXP (-16381) 70#define LDBL_MIN 3.3621031431120935063E-4932L 71#define LDBL_MIN_10_EXP (-4931) 72#define LDBL_MAX_EXP 16384 73#define LDBL_MAX 1.1897314953572317650E+4932L 74#define LDBL_MAX_10_EXP 4932 75#endif /* _MACHINE_FLOAT_H_ */ 76