1 /* $OpenBSD: float.h,v 1.6 2006/10/01 18:14:40 kettenis Exp $ */
2 /* $NetBSD: float.h,v 1.8 1995/06/20 20:45:37 jtc Exp $ */
3
4 /*
5 * Copyright (c) 1989 Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)float.h 7.1 (Berkeley) 5/8/90
33 */
34
35 #ifndef _I386_FLOAT_H_
36 #define _I386_FLOAT_H_
37
38 #include <sys/cdefs.h>
39
40 __BEGIN_DECLS
41 int __flt_rounds(void);
42 __END_DECLS
43
44 #define FLT_RADIX 2 /* b */
45 #define FLT_ROUNDS __flt_rounds()
46
47 #define FLT_MANT_DIG 24 /* p */
48 #define FLT_EPSILON 1.19209290E-07F /* b**(1-p) */
49 #define FLT_DIG 6 /* floor((p-1)*log10(b))+(b == 10) */
50 #define FLT_MIN_EXP (-125) /* emin */
51 #define FLT_MIN 1.17549435E-38F /* b**(emin-1) */
52 #define FLT_MIN_10_EXP (-37) /* ceil(log10(b**(emin-1))) */
53 #define FLT_MAX_EXP 128 /* emax */
54 #define FLT_MAX 3.40282347E+38F /* (1-b**(-p))*b**emax */
55 #define FLT_MAX_10_EXP 38 /* floor(log10((1-b**(-p))*b**emax)) */
56
57 #define DBL_MANT_DIG 53
58 #define DBL_EPSILON 2.2204460492503131E-16
59 #define DBL_DIG 15
60 #define DBL_MIN_EXP (-1021)
61 #define DBL_MIN 2.2250738585072014E-308
62 #define DBL_MIN_10_EXP (-307)
63 #define DBL_MAX_EXP 1024
64 #define DBL_MAX 1.7976931348623157E+308
65 #define DBL_MAX_10_EXP 308
66
67 #define LDBL_MANT_DIG 64
68 #define LDBL_EPSILON 1.08420217248550443401e-19L
69 #define LDBL_DIG 18
70 #define LDBL_MIN_EXP (-16381)
71 #define LDBL_MIN 3.36210314311209350626e-4932L
72 #define LDBL_MIN_10_EXP (-4931)
73 #define LDBL_MAX_EXP 16384
74 #define LDBL_MAX 1.18973149535723176502e+4932L
75 #define LDBL_MAX_10_EXP 4932
76
77 #endif /* _I386_FLOAT_H_ */