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/* wcecompat: Windows CE C Runtime Library "compatibility" library.
*
* Copyright (C) 2001-2002 Essemer Pty Ltd. All rights reserved.
* http://www.essemer.com.au/
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __wcecompat__STDARG_H__
#define __wcecompat__STDARG_H__
#include "stddef.h"
#ifdef __cplusplus
extern "C" {
#endif
#if defined (_M_CEE)
typedef struct { void* p[4]; } va_list;
#else
typedef char *va_list;
#endif
#ifdef MIPS
#define va_start(ap,v) ap = (va_list)&v + sizeof(v)
#define va_end(list) ( list = (va_list)0 )
#define va_arg(list, mode) ((mode *)(list =\
(char *) ((((int)list + (__builtin_alignof(mode)<=4?3:7)) &\
(__builtin_alignof(mode)<=4?-4:-8))+sizeof(mode))))[-1]
#elif defined(PPC)
// PPC uses 8-byte alignment of 8-byte quantities
#define _ALIGNIT(ap,t) ((((int)(ap))+(sizeof(t)<8?3:7)) & (sizeof(t)<8?~3:~7))
#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) )
#define va_start(ap,v) ( ap = (va_list)&v + _INTSIZEOF(v) )
#define va_arg(ap,t) ( *(t *)((ap = (char *) (_ALIGNIT(ap, t) + _INTSIZEOF(t))) - _INTSIZEOF(t)) )
#define va_end(ap) ( ap = (va_list)0 )
#elif defined (_M_CEE)
extern void __cdecl __va_start(va_list*, ...);
extern void* __cdecl __va_arg(va_list*, ...);
extern void __cdecl __va_end(va_list*);
#define va_start(ap,v) (__va_start(&ap, &v, sizeof(v), __builtin_alignof(v), &v))
#define va_arg(ap,t) (*((t*)__va_arg(&ap, sizeof(t), __builtin_alignof(t), (t*)0)))
#define va_end(ap) (__va_end(&ap))
#else
#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(int) - 1) & ~(sizeof(int) - 1) )
#define va_start(ap,v) ( ap = (va_list)&v + _INTSIZEOF(v) )
#define va_arg(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
#define va_end(ap) ( ap = (va_list)0 )
#endif
#ifdef __cplusplus
}
#endif
#endif /* __wcecompat__STDARG_H__ */
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