2 * Copyright (c) 1999 Marcel Moolenaar
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
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 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * $FreeBSD: src/sys/sys/assym.h,v 1.3.2.1 2000/07/07 01:31:16 obrien Exp $
29 * $DragonFly: src/sys/sys/assym.h,v 1.2 2003/06/17 04:28:58 dillon Exp $
35 #define ASSYM_ABS(value) ((value) < 0 ? -((value) + 1) + 1ULL : (value))
37 #define ASSYM(name, value) \
38 char name ## sign[(value) < 0 ? 1 : 0]; \
39 char name ## w0[ASSYM_ABS(value) & 0xFFFFU]; \
40 char name ## w1[(ASSYM_ABS(value) & 0xFFFF0000UL) >> 16]; \
41 char name ## w2[(ASSYM_ABS(value) & 0xFFFF00000000ULL) >> 32]; \
42 char name ## w3[(ASSYM_ABS(value) & 0xFFFF000000000000ULL) >> 48]
44 #endif /* !_SYS_ASSYM_H_ */