| /* $OpenBSD: float.h,v 1.3 2008/07/21 20:50:54 martynas Exp $ */ |
| /* $NetBSD: float.h,v 1.8 1995/06/20 20:45:37 jtc Exp $ */ |
| |
| /* |
| * Copyright (c) 1989 Regents of the University of California. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * @(#)float.h 7.1 (Berkeley) 5/8/90 |
| */ |
| |
| #ifndef _FLOAT_H_ |
| #define _FLOAT_H_ |
| |
| #include <sys/cdefs.h> |
| |
| #define FLT_RADIX 2 /* b */ |
| |
| // The rounding direction can be specified by fesetround() in <fenv.h> |
| #define FLT_ROUNDS 1 /* addition rounding: near */ |
| #define DECIMAL_DIG 21 /* max precision in decimal digits */ |
| |
| // NOTE: FLT_EVAL_METHOD is -1 under FREEBSD x86. |
| #ifdef __i386__ |
| #define FLT_EVAL_METHOD 2 /* long double */ |
| #else |
| #define FLT_EVAL_METHOD 0 /* no promotions */ |
| #endif |
| |
| #define DBL_MANT_DIG 53 |
| #define DBL_EPSILON 2.2204460492503131E-16 |
| #define DBL_DIG 15 |
| #define DBL_MIN_EXP (-1021) |
| #define DBL_MIN 2.2250738585072014E-308 |
| #define DBL_MIN_10_EXP (-307) |
| #define DBL_MAX_EXP 1024 |
| #define DBL_MAX_10_EXP 308 |
| |
| #define FLT_MANT_DIG 24 /* p */ |
| #define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */ |
| #define FLT_MIN_EXP (-125) /* emin */ |
| #define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */ |
| #define FLT_MAX_EXP 128 /* emax */ |
| #define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */ |
| |
| #define DBL_MAX 1.7976931348623157E+308 |
| #define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */ |
| #define FLT_MIN 1.17549435E-38F /* b**(emin-1) */ |
| #define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */ |
| |
| #define LDBL_MANT_DIG 64 |
| #define LDBL_EPSILON 1.08420217248550443401e-19L |
| #define LDBL_DIG 18 |
| #define LDBL_MIN_EXP (-16381) |
| #define LDBL_MIN 3.36210314311209350626e-4932L |
| #define LDBL_MIN_10_EXP (-4931) |
| #define LDBL_MAX_EXP 16384 |
| #define LDBL_MAX 1.18973149535723176502e+4932L |
| #define LDBL_MAX_10_EXP 4932 |
| |
| #endif /* _FLOAT_H_ */ |
