float.h (8fa0b743820f61c661ba5f3ea0e3be0dc137910e) float.h (ee0d5ab989eaa970bafdaf666651fb465239be5f)
1/*-
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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * from: @(#)float.h 7.1 (Berkeley) 5/8/90
30 * $FreeBSD$
2 * This file is in the public domain.
31 */
3 */
4/* $FreeBSD$ */
32
5
33#ifndef _MACHINE_FLOAT_H_
34#define _MACHINE_FLOAT_H_ 1
35
36#include <sys/cdefs.h>
37
38__BEGIN_DECLS
39extern int __flt_rounds(void);
40__END_DECLS
41
42#define FLT_RADIX 2 /* b */
43#define FLT_ROUNDS __flt_rounds()
44#if __ISO_C_VISIBLE >= 1999
45#define FLT_EVAL_METHOD (-1) /* i387 semantics are...interesting */
46#define DECIMAL_DIG 21 /* max precision in decimal digits */
47#endif
48
49#define FLT_MANT_DIG 24 /* p */
50#define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */
51#define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
52#define FLT_MIN_EXP (-125) /* emin */
53#define FLT_MIN 1.17549435E-38F /* b**(emin-1) */
54#define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */
55#define FLT_MAX_EXP 128 /* emax */
56#define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */
57#define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */
58#if __ISO_C_VISIBLE >= 2011
59#define FLT_TRUE_MIN 1.40129846E-45F /* b**(emin-p) */
60#define FLT_DECIMAL_DIG 9 /* ceil(1+p*log10(b)) */
61#define FLT_HAS_SUBNORM 1
62#endif /* __ISO_C_VISIBLE >= 2011 */
63
64#define DBL_MANT_DIG 53
65#define DBL_EPSILON 2.2204460492503131E-16
66#define DBL_DIG 15
67#define DBL_MIN_EXP (-1021)
68#define DBL_MIN 2.2250738585072014E-308
69#define DBL_MIN_10_EXP (-307)
70#define DBL_MAX_EXP 1024
71#define DBL_MAX 1.7976931348623157E+308
72#define DBL_MAX_10_EXP 308
73#if __ISO_C_VISIBLE >= 2011
74#define DBL_TRUE_MIN 4.9406564584124654E-324
75#define DBL_DECIMAL_DIG 17
76#define DBL_HAS_SUBNORM 1
77#endif /* __ISO_C_VISIBLE >= 2011 */
78
79#define LDBL_MANT_DIG 64
80#define LDBL_EPSILON 1.0842021724855044340E-19L
81#define LDBL_DIG 18
82#define LDBL_MIN_EXP (-16381)
83#define LDBL_MIN 3.3621031431120935063E-4932L
84#define LDBL_MIN_10_EXP (-4931)
85#define LDBL_MAX_EXP 16384
86#define LDBL_MAX 1.1897314953572317650E+4932L
87#define LDBL_MAX_10_EXP 4932
88#if __ISO_C_VISIBLE >= 2011
89#define LDBL_TRUE_MIN 3.6451995318824746025E-4951L
90#define LDBL_DECIMAL_DIG 21
91#define LDBL_HAS_SUBNORM 1
92#endif /* __ISO_C_VISIBLE >= 2011 */
93
94#endif /* _MACHINE_FLOAT_H_ */
6#include <x86/float.h>