ReactOS  0.4.15-dev-316-g938df97
fpmath.h
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1 /*-
2  * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org>
3  * Copyright (c) 2002 David Schultz <dschultz@uclink.Berkeley.EDU>
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  * notice, this list of conditions and the following disclaimer in the
13  * documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  *
27  * $FreeBSD: src/lib/libc/include/fpmath.h,v 1.1 2003/02/08 20:37:53 mike Exp $
28  */
29 
30 #include <sys/endian.h>
31 #include "_fpmath.h"
32 
33 union IEEEf2bits {
34  float f;
35  struct {
36 #if _BYTE_ORDER == _LITTLE_ENDIAN
37  unsigned int man :23;
38  unsigned int exp :8;
39  unsigned int sign :1;
40 #else /* _BIG_ENDIAN */
41  unsigned int sign :1;
42  unsigned int exp :8;
43  unsigned int man :23;
44 #endif
45  } bits;
46 };
47 
48 union IEEEd2bits {
49  double d;
50  struct {
51 #if _BYTE_ORDER == _LITTLE_ENDIAN
52  unsigned int manl :32;
53  unsigned int manh :20;
54  unsigned int exp :11;
55  unsigned int sign :1;
56 #else /* _BIG_ENDIAN */
57  unsigned int sign :1;
58  unsigned int exp :11;
59  unsigned int manh :20;
60  unsigned int manl :32;
61 #endif
62  } bits;
63 };
unsigned int sign
Definition: fpmath.h:55
unsigned int manh
Definition: fpmath.h:53
unsigned int exp
Definition: fpmath.h:54
unsigned int sign
Definition: fpmath.h:39
struct IEEEf2bits::@179 bits
unsigned int manl
Definition: fpmath.h:52
struct IEEEd2bits::@180 bits
double d
Definition: fpmath.h:49
float f
Definition: fpmath.h:34
unsigned int man
Definition: fpmath.h:37
unsigned int exp
Definition: fpmath.h:38