alloca.h revision b0fa4c5a13245e6e4bd1d4c2cfcd98e9f924366f
/** @file
* innotek Portable Runtime - alloca().
*/
/*
* Copyright (C) 2006-2007 innotek GmbH
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file 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,
* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
* distribution. VirtualBox OSE is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY of any kind.
*
* If you received this file as part of a commercial VirtualBox
* distribution, then only the terms of your commercial VirtualBox
* license agreement apply instead of the previous paragraph.
*/
#ifndef __iprt_alloca_h__
#define __iprt_alloca_h__
/*
* If there are more difficult platforms out there, we'll do OS
* specific #ifdefs. But for now we'll just include the headers
* which normally contains the alloca() prototype.
* When we're in kernel territory it starts getting a bit more
* interesting of course...
*/
#if defined(IN_RING0) && defined(RT_OS_LINUX)
/* ASSUMES GNU C */
# define alloca(cb) __builtin_alloca(cb)
#else
# include <stdlib.h>
# if !defined(RT_OS_DARWIN) && !defined(RT_OS_FREEBSD)
# include <malloc.h>
# endif
# ifdef RT_OS_SOLARIS
# include <alloca.h>
# endif
#endif
#endif