chiark / gitweb /
Infrastructure: Split the files into subdirectories.
[mLib] / utils / align.h
CommitLineData
b65a28d1 1/* -*-c-*-
b65a28d1 2 *
3 * Pointer alignment hack
4 *
5 * (c) 2003 Straylight/Edgeware
6 */
7
d4efbcd9 8/*----- Licensing notice --------------------------------------------------*
b65a28d1 9 *
10 * This file is part of the mLib utilities library.
11 *
12 * mLib is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU Library General Public License as
14 * published by the Free Software Foundation; either version 2 of the
15 * License, or (at your option) any later version.
d4efbcd9 16 *
b65a28d1 17 * mLib is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU Library General Public License for more details.
d4efbcd9 21 *
b65a28d1 22 * You should have received a copy of the GNU Library General Public
23 * License along with mLib; if not, write to the Free
24 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
25 * MA 02111-1307, USA.
26 */
27
b65a28d1 28#ifndef MLIB_ALIGN_H
29#define MLIB_ALIGN_H
30
31#ifdef __cplusplus
32 extern "C" {
33#endif
34
35/*----- Data structures ---------------------------------------------------*/
36
37union align {
38 int i;
39 long l;
40 double d;
41 void *p;
42 void (*f)(void *);
43 struct notexist *s;
44};
45
46/*----- Macros provided ---------------------------------------------------*/
47
48#define ALIGN(sz) do { \
49 sz += sizeof(union align) - 1; \
50 sz -= sz % sizeof(union align); \
51} while (0)
52
53/*----- That's all, folks -------------------------------------------------*/
54
55#ifdef __cplusplus
56 }
57#endif
58
59#endif