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. 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 * $FreeBSD$
31 */
32
33 #ifndef _MACHINE_FLOAT_H_
34 #define _MACHINE_FLOAT_H_
35
36 #include <sys/cdefs.h>
37
38 __BEGIN_DECLS
39 extern 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 0
46 #define DECIMAL_DIG 17 /* 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 DBL_MANT_DIG
80 #define LDBL_EPSILON ((long double)DBL_EPSILON)
81 #define LDBL_DIG DBL_DIG
82 #define LDBL_MIN_EXP DBL_MIN_EXP
83 #define LDBL_MIN ((long double)DBL_MIN)
84 #define LDBL_MIN_10_EXP DBL_MIN_10_EXP
85 #define LDBL_MAX_EXP DBL_MAX_EXP
86 #define LDBL_MAX ((long double)DBL_MAX)
87 #define LDBL_MAX_10_EXP DBL_MAX_10_EXP
88 #if __ISO_C_VISIBLE >= 2011
89 #define LDBL_TRUE_MIN ((long double)DBL_TRUE_MIN)
90 #define LDBL_DECIMAL_DIG DBL_DECIMAL_DIG
91 #define LDBL_HAS_SUBNORM DBL_HAS_SUBNORM
92 #endif /* __ISO_C_VISIBLE >= 2011 */
93
94 #if 0 /* RISCVTODO */
95 #define LDBL_MANT_DIG 113
96 #define LDBL_EPSILON 1.925929944387235853055977942584927319E-34L
97 #define LDBL_DIG 33
98 #define LDBL_MIN_EXP (-16381)
99 #define LDBL_MIN 3.362103143112093506262677817321752603E-4932L
100 #define LDBL_MIN_10_EXP (-4931)
101 #define LDBL_MAX_EXP (+16384)
102 #define LDBL_MAX 1.189731495357231765085759326628007016E+4932L
103 #define LDBL_MAX_10_EXP (+4932)
104 #if __ISO_C_VISIBLE >= 2011
105 #define LDBL_TRUE_MIN 6.475175119438025110924438958227646552E-4966L
106 #define LDBL_DECIMAL_DIG 36
107 #define LDBL_HAS_SUBNORM 1
108 #endif /* __ISO_C_VISIBLE >= 2011 */
109 #endif
110
111 #endif /* _MACHINE_FLOAT_H_ */
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