xref: /freebsd/sys/arm64/include/float.h (revision 1719886f6d08408b834d270c59ffcfd821c8f63a)
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 
30 #ifdef __arm__
31 #include <arm/float.h>
32 #else /* !__arm__ */
33 
34 #ifndef _MACHINE_FLOAT_H_
35 #define	_MACHINE_FLOAT_H_
36 
37 #include <sys/cdefs.h>
38 
39 __BEGIN_DECLS
40 extern int __flt_rounds(void);
41 __END_DECLS
42 
43 #define	FLT_RADIX	2		/* b */
44 #define	FLT_ROUNDS	__flt_rounds()
45 #if __ISO_C_VISIBLE >= 1999
46 #define	FLT_EVAL_METHOD	0
47 #define	DECIMAL_DIG	17		/* max precision in decimal digits */
48 #endif
49 
50 #define	FLT_MANT_DIG	24		/* p */
51 #define	FLT_EPSILON	1.19209290E-07F	/* b**(1-p) */
52 #define	FLT_DIG		6		/* floor((p-1)*log10(b))+(b == 10) */
53 #define	FLT_MIN_EXP	(-125)		/* emin */
54 #define	FLT_MIN		1.17549435E-38F	/* b**(emin-1) */
55 #define	FLT_MIN_10_EXP	(-37)		/* ceil(log10(b**(emin-1))) */
56 #define	FLT_MAX_EXP	128		/* emax */
57 #define	FLT_MAX		3.40282347E+38F	/* (1-b**(-p))*b**emax */
58 #define	FLT_MAX_10_EXP	38		/* floor(log10((1-b**(-p))*b**emax)) */
59 #if __ISO_C_VISIBLE >= 2011
60 #define	FLT_TRUE_MIN	1.40129846E-45F	/* b**(emin-p) */
61 #define	FLT_DECIMAL_DIG	9		/* ceil(1+p*log10(b)) */
62 #define	FLT_HAS_SUBNORM	1
63 #endif /* __ISO_C_VISIBLE >= 2011 */
64 
65 #define	DBL_MANT_DIG	53
66 #define	DBL_EPSILON	2.2204460492503131E-16
67 #define	DBL_DIG		15
68 #define	DBL_MIN_EXP	(-1021)
69 #define	DBL_MIN		2.2250738585072014E-308
70 #define	DBL_MIN_10_EXP	(-307)
71 #define	DBL_MAX_EXP	1024
72 #define	DBL_MAX		1.7976931348623157E+308
73 #define	DBL_MAX_10_EXP	308
74 #if __ISO_C_VISIBLE >= 2011
75 #define	DBL_TRUE_MIN	4.9406564584124654E-324
76 #define	DBL_DECIMAL_DIG	17
77 #define	DBL_HAS_SUBNORM	1
78 #endif /* __ISO_C_VISIBLE >= 2011 */
79 
80 #define	LDBL_MANT_DIG	113
81 #define	LDBL_EPSILON	1.925929944387235853055977942584927319E-34L
82 #define	LDBL_DIG	33
83 #define	LDBL_MIN_EXP	(-16381)
84 #define	LDBL_MIN	3.362103143112093506262677817321752603E-4932L
85 #define	LDBL_MIN_10_EXP	(-4931)
86 #define	LDBL_MAX_EXP	(+16384)
87 #define	LDBL_MAX	1.189731495357231765085759326628007016E+4932L
88 #define	LDBL_MAX_10_EXP	(+4932)
89 #if __ISO_C_VISIBLE >= 2011
90 #define	LDBL_TRUE_MIN	6.475175119438025110924438958227646552E-4966L
91 #define	LDBL_DECIMAL_DIG 36
92 #define	LDBL_HAS_SUBNORM 1
93 #endif /* __ISO_C_VISIBLE >= 2011 */
94 
95 #endif /* _MACHINE_FLOAT_H_ */
96 
97 #endif /* !__arm__ */
98