mes/include/stddef.h
Jan Nieuwenhuizen c2ff5ec954
mescc: Support glibc-2.2.5: header tweaks.
* include/sys/types.h [__PTRDIFF_T]: Extra guard for ptrdiff_t.
  [__SIZE_T]: Extra guard for size_t.
* include/stdlib.h: Include alloca; remove alloca prototype,
* include/errno.h: Add E2BIG.
2018-06-21 00:27:27 +02:00

49 lines
1.3 KiB
C

/* -*-comment-start: "//";comment-end:""-*-
* Mes --- Maxwell Equations of Software
* Copyright © 2017 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
*
* This file is part of Mes.
*
* Mes is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or (at
* your option) any later version.
*
* Mes is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Mes. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __MES_STDDEF_H
#define __MES_STDDEF_H 1
#if WITH_GLIBC
#undef __MES_STDDEF_H
#include_next <stddef.h>
#else // ! WITH_GLIBC
#ifndef __MES_SIZE_T
#define __MES_SIZE_T
#undef size_t
typedef unsigned long size_t;
#endif
#include <sys/types.h>
#include <stdint.h>
#include <unistd.h>
#ifndef offsetof
#if __MESC__
#define offsetof(type, field) (&((type *)0)->field)
#else // !__MESC__
#define offsetof(type, field) ((size_t)&((type *)0)->field)
#endif // !__MESC__
#endif // offsetof
#endif // ! WITH_GLIBC
#endif // __MES_STDDEF_H