2 * Copyright (c) 2003 Mike Barcroft <mike@FreeBSD.org>
3 * Copyright (c) 2002, 2003 David Schultz <das@FreeBSD.ORG>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
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.
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
30 #include <sys/endian.h>
35 #if _BYTE_ORDER == _LITTLE_ENDIAN
36 unsigned int manl :32;
37 unsigned int manh :32;
40 unsigned long junk :48;
41 #else /* _BIG_ENDIAN */
42 unsigned long junk :48;
45 unsigned int manh :32;
46 unsigned int manl :32;
50 #if _BYTE_ORDER == _LITTLE_ENDIAN
51 unsigned long man :64;
52 unsigned int expsign :16;
53 unsigned long junk :48;
54 #else /* _BIG_ENDIAN */
55 unsigned long junk :48;
56 unsigned int expsign :16;
57 unsigned long man :64;
62 #if _BYTE_ORDER == _LITTLE_ENDIAN
63 #define LDBL_NBIT 0x80000000
64 #define mask_nbit_l(u) ((u).bits.manh &= ~LDBL_NBIT)
65 #else /* _BIG_ENDIAN */
67 * XXX This doesn't look right. Very few machines have a different
68 * endianness for integers and floating-point, and in nextafterl()
69 * we assume that none do. If you have an environment for testing
70 * this, please let me know. --das
72 #define LDBL_NBIT 0x80
73 #define mask_nbit_l(u) ((u).bits.manh &= ~LDBL_NBIT)
76 #define LDBL_MANH_SIZE 32
77 #define LDBL_MANL_SIZE 32
79 #define LDBL_TO_ARRAY32(u, a) do { \
80 (a)[0] = (uint32_t)(u).bits.manl; \
81 (a)[1] = (uint32_t)(u).bits.manh; \