libexplain: libexplain/ac/stddef.h Source File

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00001 /*
00002  * libexplain - Explain errno values returned by libc functions
00003  * Copyright (C) 2008, 2009, 2011, 2013 Peter Miller
00004  * Written by Peter Miller <pmiller@opensource.org.au>
00005  *
00006  * This program is free software; you can redistribute it and/or modify
00007  * it under the terms of the GNU Lesser General Public License as published by
00008  * the Free Software Foundation; either version 3 of the License, or (at
00009  * your option) any later version.
00010  *
00011  * This program is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public License
00017  * along with this program. If not, see <http://www.gnu.org/licenses/>.
00018  */
00019 
00020 #ifndef LIBEXPLAIN_AC_STDDEF_H
00021 #define LIBEXPLAIN_AC_STDDEF_H
00022 
00028 #include <libexplain/config.h>
00029 
00030 #ifdef HAVE_STDDEF_H
00031 #include <stddef.h>
00032 #endif
00033 
00034 /* for C89 compilance */
00035 #ifndef offsetof
00036 #define offsetof(a, b)  ((size_t)((char *)&((a *)0)->b - (char *)0))
00037 #endif
00038 
00039 /* always include this before <sys/types.h> */
00040 #include <libexplain/ac/linux/types.h>
00041 
00042 /*
00043  * Sun's Solaris 9 C compiler, and some other proprietary C compilers, are not
00044  * ANSI C 1989 conforming (let alone C99) and need the sys/types.h header as
00045  * well for size_t.  C'mon, people, it's been more than 20 years!
00046  */
00047 #include <libexplain/ac/sys/types.h>
00048 
00049 #endif /* LIBEXPLAIN_AC_STDDEF_H */
00050 /* vim: set ts=8 sw=4 et : */