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authorHolger Weiss <holger@zedat.fu-berlin.de>2009-05-19 22:32:10 (GMT)
committerHolger Weiss <holger@zedat.fu-berlin.de>2009-05-19 22:32:10 (GMT)
commit50b3ff7b91e78a61aca93247bee586d6d7eb27c8 (patch)
treedb4c7eee24479ac7ee6888ce1562facf60159b71 /gl/alignof.h
parent2701ccd500e60537a8c2977a81549ff33eeaef3f (diff)
downloadmonitoring-plugins-50b3ff7b91e78a61aca93247bee586d6d7eb27c8.tar.gz
Sync with the latest Gnulib code (cb75dc5)
Signed-off-by: Holger Weiss <holger@zedat.fu-berlin.de>
Diffstat (limited to 'gl/alignof.h')
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1/* Determine alignment of types.
2 Copyright (C) 2003-2004, 2006, 2009 Free Software Foundation, Inc.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3, or (at your option)
7 any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
17
18#ifndef _ALIGNOF_H
19#define _ALIGNOF_H
20
21#include <stddef.h>
22
23/* Determine the alignment of a type at compile time. */
24#if defined __GNUC__
25# define alignof __alignof__
26#elif defined __cplusplus
27 template <class type> struct alignof_helper { char __slot1; type __slot2; };
28# define alignof(type) offsetof (alignof_helper<type>, __slot2)
29#else
30# define alignof(type) offsetof (struct { char __slot1; type __slot2; }, __slot2)
31#endif
32
33#endif /* _ALIGNOF_H */