osfmk/libsa/i386/va_list.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 18:19:50  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  16:56:30  bruel
  39  *      created from standalone mach servers
  40  *      [1996/09/17  16:18:09  bruel]
  41  *
  42  * $EndLog$
  43  */
  44
  45 #ifndef _MACHINE_VALIST_H
  46 #define _MACHINE_VALIST_H
  47
  48 /*
  49  * Four possible situations:
  50  *      - We are being included by {var,std}args.h (or anyone) before stdio.h.
  51  *        define real type.
  52  *
  53  *      - We are being included by stdio.h before {var,std}args.h.
  54  *        define hidden type for prototypes in stdio, don't pollute namespace.
  55  *
  56  *      - We are being included by {var,std}args.h after stdio.h.
  57  *        define real type to match hidden type.  no longer use hidden type.
  58  *
  59  *      - We are being included again after defining the real va_list.
  60  *        do nothing.
  61  *
  62  */
  63
  64 #if     !defined(_HIDDEN_VA_LIST) && !defined(_VA_LIST)
  65 #define _VA_LIST
  66 typedef char *va_list;
  67
  68 #elif   defined(_HIDDEN_VA_LIST) && !defined(_VA_LIST)
  69 #define _VA_LIST
  70 typedef char *__va_list;
  71
  72 #elif   defined(_HIDDEN_VA_LIST) && defined(_VA_LIST)
  73 #undef _HIDDEN_VA_LIST
  74 typedef __va_list va_list;
  75
  76 #endif
  77
  78 #endif /* _MACHINE_VALIST_H */
  79