osfmk/libsa/i386/stdarg.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * @OSF_COPYRIGHT@
  24  *
  25  */
  26 /*
  27  * HISTORY
  28  *
  29  * Revision 1.2  1998/09/30 21:21:00  wsanchez
  30  * Merged in IntelMerge1 (mburg: Intel support)
  31  *
  32  * Revision 1.1.2.1  1998/09/30 18:19:49  mburg
  33  * Changes for Intel port
  34  *
  35  * Revision 1.1.1.1  1998/03/07 02:25:36  wsanchez
  36  * Import of OSF Mach kernel (~mburg)
  37  *
  38  * Revision 1.1.2.1  1996/09/17  16:56:26  bruel
  39  *      created from standalone mach servers
  40  *      [1996/09/17  16:18:07  bruel]
  41  *
  42  * $EndLog$
  43  */
  44
  45 #ifndef _MACHINE_STDARG_H
  46 #define _MACHINE_STDARG_H
  47
  48 #include <machine/va_list.h>
  49
  50 /* Amount of space required in an argument list for an arg of type TYPE.
  51    TYPE may alternatively be an expression whose type is used.  */
  52
  53 #define __va_rounded_size(TYPE)  \
  54   (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
  55
  56 #define va_start(AP, LASTARG)                                           \
  57  (AP = ((char *) &(LASTARG) + __va_rounded_size (LASTARG)))
  58
  59 void va_end (va_list);          /* Defined in gnulib */
  60 #define va_end(AP)
  61
  62 #define va_arg(AP, mode)                                        \
  63                   (AP += __va_rounded_size (mode),              \
  64                    *((mode *) (AP - __va_rounded_size (mode))))
  65
  66 #endif /* _MACHINE_STDARG_H */