float.h revision 79
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 * @(#)float.h 7.1 (Berkeley) 5/8/90 34 */ 35 36#define FLT_RADIX 2 /* b */ 37#define FLT_ROUNDS 1 /* FP addition rounds to nearest */ 38 39#define FLT_MANT_DIG 24 /* p */ 40#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */ 41#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ 42#define FLT_MIN_EXP -125 /* emin */ 43#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */ 44#define FLT_MIN_10_EXP -37 /* ceil(log10(b**(emin-1))) */ 45#define FLT_MAX_EXP 128 /* emax */ 46#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */ 47#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ 48 49#define DBL_MANT_DIG 53 50#define DBL_EPSILON 2.2204460492503131E-16 51#define DBL_DIG 15 52#define DBL_MIN_EXP -1021 53#define DBL_MIN 2.2250738585072014E-308 54#define DBL_MIN_10_EXP -307 55#define DBL_MAX_EXP 1024 56#define DBL_MAX 1.7976931348623157E+308 57#define DBL_MAX_10_EXP 308 58 59#define LDBL_MANT_DIG DBL_MANT_DIG 60#define LDBL_EPSILON DBL_EPSILON 61#define LDBL_DIG DBL_DIG 62#define LDBL_MIN_EXP DBL_MIN_EXP 63#define LDBL_MIN DBL_MIN 64#define LDBL_MIN_10_EXP DBL_MIN_10_EXP 65#define LDBL_MAX_EXP DBL_MAX_EXP 66#define LDBL_MAX DBL_MAX 67#define LDBL_MAX_10_EXP DBL_MAX_10_EXP 68