osfmk/libsa/i386/stdarg.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * @OSF_COPYRIGHT@
  27  *
  28  */
  29 /*
  30  * HISTORY
  31  *
  32  * Revision 1.2  1998/09/30 21:21:00  wsanchez
  33  * Merged in IntelMerge1 (mburg: Intel support)
  34  *
  35  * Revision 1.1.2.1  1998/09/30 18:19:49  mburg
  36  * Changes for Intel port
  37  *
  38  * Revision 1.1.1.1  1998/03/07 02:25:36  wsanchez
  39  * Import of OSF Mach kernel (~mburg)
  40  *
  41  * Revision 1.1.2.1  1996/09/17  16:56:26  bruel
  42  *      created from standalone mach servers
  43  *      [1996/09/17  16:18:07  bruel]
  44  *
  45  * $EndLog$
  46  */
  47
  48 #ifndef _MACHINE_STDARG_H
  49 #define _MACHINE_STDARG_H
  50
  51 #include <machine/va_list.h>
  52
  53 /* Amount of space required in an argument list for an arg of type TYPE.
  54    TYPE may alternatively be an expression whose type is used.  */
  55
  56 #define __va_rounded_size(TYPE)  \
  57   (((sizeof (TYPE) + sizeof (int) - 1) / sizeof (int)) * sizeof (int))
  58
  59 #define va_start(AP, LASTARG)                                           \
  60  (AP = ((char *) &(LASTARG) + __va_rounded_size (LASTARG)))
  61
  62 void va_end (va_list);          /* Defined in gnulib */
  63 #define va_end(AP)
  64
  65 #define va_arg(AP, mode)                                        \
  66                   (AP += __va_rounded_size (mode),              \
  67                    *((mode *) (AP - __va_rounded_size (mode))))
  68
  69 #endif /* _MACHINE_STDARG_H */