xref: /freebsd/sys/powerpc/include/float.h (revision fb7daace8b1c20e5421da3f529abddcc4f96959e)
160727d8bSWarner Losh /*-
2ae8f9dd1SDavid E. O'Brien  * Copyright (c) 1989 Regents of the University of California.
3ae8f9dd1SDavid E. O'Brien  * All rights reserved.
4ae8f9dd1SDavid E. O'Brien  *
5ae8f9dd1SDavid E. O'Brien  * Redistribution and use in source and binary forms, with or without
6ae8f9dd1SDavid E. O'Brien  * modification, are permitted provided that the following conditions
7ae8f9dd1SDavid E. O'Brien  * are met:
8ae8f9dd1SDavid E. O'Brien  * 1. Redistributions of source code must retain the above copyright
9ae8f9dd1SDavid E. O'Brien  *    notice, this list of conditions and the following disclaimer.
10ae8f9dd1SDavid E. O'Brien  * 2. Redistributions in binary form must reproduce the above copyright
11ae8f9dd1SDavid E. O'Brien  *    notice, this list of conditions and the following disclaimer in the
12ae8f9dd1SDavid E. O'Brien  *    documentation and/or other materials provided with the distribution.
13ae8f9dd1SDavid E. O'Brien  * 4. Neither the name of the University nor the names of its contributors
14ae8f9dd1SDavid E. O'Brien  *    may be used to endorse or promote products derived from this software
15ae8f9dd1SDavid E. O'Brien  *    without specific prior written permission.
16ae8f9dd1SDavid E. O'Brien  *
17ae8f9dd1SDavid E. O'Brien  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18ae8f9dd1SDavid E. O'Brien  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19ae8f9dd1SDavid E. O'Brien  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20ae8f9dd1SDavid E. O'Brien  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21ae8f9dd1SDavid E. O'Brien  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22ae8f9dd1SDavid E. O'Brien  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23ae8f9dd1SDavid E. O'Brien  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24ae8f9dd1SDavid E. O'Brien  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25ae8f9dd1SDavid E. O'Brien  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26ae8f9dd1SDavid E. O'Brien  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27ae8f9dd1SDavid E. O'Brien  * SUCH DAMAGE.
28ae8f9dd1SDavid E. O'Brien  *
29ae8f9dd1SDavid E. O'Brien  *	from: @(#)float.h	7.1 (Berkeley) 5/8/90
30ae8f9dd1SDavid E. O'Brien  *	from: FreeBSD: src/sys/i386/include/float.h,v 1.8 1999/08/28 00:44:11
31ae8f9dd1SDavid E. O'Brien  * $FreeBSD$
32ae8f9dd1SDavid E. O'Brien  */
33ae8f9dd1SDavid E. O'Brien 
34ae8f9dd1SDavid E. O'Brien #ifndef _MACHINE_FLOAT_H_
35ae8f9dd1SDavid E. O'Brien #define _MACHINE_FLOAT_H_ 1
36ae8f9dd1SDavid E. O'Brien 
37be393068SDavid Schultz #include <sys/cdefs.h>
38be393068SDavid Schultz 
3956ae1bedSRafal Jaworowski #ifndef _SOFT_FLOAT
40479f8d22SDavid Schultz __BEGIN_DECLS
41479f8d22SDavid Schultz extern int __flt_rounds(void);
42479f8d22SDavid Schultz __END_DECLS
4356ae1bedSRafal Jaworowski #define FLT_ROUNDS	__flt_rounds()
4456ae1bedSRafal Jaworowski #else
4556ae1bedSRafal Jaworowski #define FLT_ROUNDS	-1
4656ae1bedSRafal Jaworowski #endif
47479f8d22SDavid Schultz 
48ae8f9dd1SDavid E. O'Brien #define FLT_RADIX	2		/* b */
49be393068SDavid Schultz #if __ISO_C_VISIBLE >= 1999
508cf5ed51SMike Barcroft #define	FLT_EVAL_METHOD	1		/* operands promoted to double */
51*fb7daaceSDavid Schultz #define	DECIMAL_DIG	17		/* max precision in decimal digits */
52be393068SDavid Schultz #endif
53ae8f9dd1SDavid E. O'Brien 
54ae8f9dd1SDavid E. O'Brien #define FLT_MANT_DIG	24		/* p */
55ae8f9dd1SDavid E. O'Brien #define FLT_EPSILON	1.19209290E-07F	/* b**(1-p) */
56ae8f9dd1SDavid E. O'Brien #define FLT_DIG		6		/* floor((p-1)*log10(b))+(b == 10) */
57ae8f9dd1SDavid E. O'Brien #define FLT_MIN_EXP	(-125)		/* emin */
58ae8f9dd1SDavid E. O'Brien #define FLT_MIN		1.17549435E-38F	/* b**(emin-1) */
59ae8f9dd1SDavid E. O'Brien #define FLT_MIN_10_EXP	(-37)		/* ceil(log10(b**(emin-1))) */
60ae8f9dd1SDavid E. O'Brien #define FLT_MAX_EXP	128		/* emax */
61ae8f9dd1SDavid E. O'Brien #define FLT_MAX		3.40282347E+38F	/* (1-b**(-p))*b**emax */
62ae8f9dd1SDavid E. O'Brien #define FLT_MAX_10_EXP	38		/* floor(log10((1-b**(-p))*b**emax)) */
63ae8f9dd1SDavid E. O'Brien 
64ae8f9dd1SDavid E. O'Brien #define DBL_MANT_DIG	53
65ae8f9dd1SDavid E. O'Brien #define DBL_EPSILON	2.2204460492503131E-16
66ae8f9dd1SDavid E. O'Brien #define DBL_DIG		15
67ae8f9dd1SDavid E. O'Brien #define DBL_MIN_EXP	(-1021)
68ae8f9dd1SDavid E. O'Brien #define DBL_MIN		2.2250738585072014E-308
69ae8f9dd1SDavid E. O'Brien #define DBL_MIN_10_EXP	(-307)
70ae8f9dd1SDavid E. O'Brien #define DBL_MAX_EXP	1024
71ae8f9dd1SDavid E. O'Brien #define DBL_MAX		1.7976931348623157E+308
72ae8f9dd1SDavid E. O'Brien #define DBL_MAX_10_EXP	308
73ae8f9dd1SDavid E. O'Brien 
74df11547fSAndrew Gallatin #define LDBL_MANT_DIG	DBL_MANT_DIG
7577a5f1bdSMarcel Moolenaar #define LDBL_EPSILON	(long double)DBL_EPSILON
76df11547fSAndrew Gallatin #define LDBL_DIG	DBL_DIG
77df11547fSAndrew Gallatin #define LDBL_MIN_EXP	DBL_MIN_EXP
7877a5f1bdSMarcel Moolenaar #define LDBL_MIN	(long double)DBL_MIN
79df11547fSAndrew Gallatin #define LDBL_MIN_10_EXP	DBL_MIN_10_EXP
80df11547fSAndrew Gallatin #define LDBL_MAX_EXP	DBL_MAX_EXP
8177a5f1bdSMarcel Moolenaar #define LDBL_MAX	(long double)DBL_MAX
82df11547fSAndrew Gallatin #define LDBL_MAX_10_EXP	DBL_MAX_10_EXP
83feb43b1cSPeter Grehan 
84ae8f9dd1SDavid E. O'Brien #endif /* _MACHINE_FLOAT_H_ */
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