xref: /freebsd/sys/powerpc/include/float.h (revision 39beb93c3f8bdbf72a61fda42300b5ebed7390c8)
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  *	from: FreeBSD: src/sys/i386/include/float.h,v 1.8 1999/08/28 00:44:11
31  * $FreeBSD$
32  */
33 
34 #ifndef _MACHINE_FLOAT_H_
35 #define _MACHINE_FLOAT_H_ 1
36 
37 #include <sys/cdefs.h>
38 
39 #ifndef _SOFT_FLOAT
40 __BEGIN_DECLS
41 extern int __flt_rounds(void);
42 __END_DECLS
43 #define FLT_ROUNDS	__flt_rounds()
44 #else
45 #define FLT_ROUNDS	-1
46 #endif
47 
48 #define FLT_RADIX	2		/* b */
49 #if __ISO_C_VISIBLE >= 1999
50 #define	FLT_EVAL_METHOD	1		/* operands promoted to double */
51 #define	DECIMAL_DIG	35		/* max precision in decimal digits */
52 #endif
53 
54 #define FLT_MANT_DIG	24		/* p */
55 #define FLT_EPSILON	1.19209290E-07F	/* b**(1-p) */
56 #define FLT_DIG		6		/* floor((p-1)*log10(b))+(b == 10) */
57 #define FLT_MIN_EXP	(-125)		/* emin */
58 #define FLT_MIN		1.17549435E-38F	/* b**(emin-1) */
59 #define FLT_MIN_10_EXP	(-37)		/* ceil(log10(b**(emin-1))) */
60 #define FLT_MAX_EXP	128		/* emax */
61 #define FLT_MAX		3.40282347E+38F	/* (1-b**(-p))*b**emax */
62 #define FLT_MAX_10_EXP	38		/* floor(log10((1-b**(-p))*b**emax)) */
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 
74 #define LDBL_MANT_DIG	DBL_MANT_DIG
75 #define LDBL_EPSILON	(long double)DBL_EPSILON
76 #define LDBL_DIG	DBL_DIG
77 #define LDBL_MIN_EXP	DBL_MIN_EXP
78 #define LDBL_MIN	(long double)DBL_MIN
79 #define LDBL_MIN_10_EXP	DBL_MIN_10_EXP
80 #define LDBL_MAX_EXP	DBL_MAX_EXP
81 #define LDBL_MAX	(long double)DBL_MAX
82 #define LDBL_MAX_10_EXP	DBL_MAX_10_EXP
83 
84 #endif /* _MACHINE_FLOAT_H_ */
85