posix/include/stdarg.h

   1 /* $Id: stdarg.h,v 1.2 2002/02/20 09:17:54 hyperion Exp $
   2  */
   3 /*
   4  * stdarg.h
   5  *
   6  * handle variable argument list. Conforming to the Single UNIX(r)
   7  * Specification Version 2, System Interface & Headers Issue 5
   8  *
   9  * This file is part of the ReactOS Operating System.
  10  *
  11  * Contributors:
  12  *  Created by KJK::Hyperion <noog@libero.it>
  13  *
  14  *  THIS SOFTWARE IS NOT COPYRIGHTED
  15  *
  16  *  This source code is offered for use in the public domain. You may
  17  *  use, modify or distribute it freely.
  18  *
  19  *  This code is distributed in the hope that it will be useful but
  20  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  21  *  DISCLAMED. This includes but is not limited to warranties of
  22  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  23  *
  24  */
  25 #ifndef __STDARG_H_INCLUDED__
  26 #define __STDARG_H_INCLUDED__
  27
  28 /* OBJECTS */
  29
  30 /* TYPES */
  31 typedef char* va_list;
  32
  33 /* CONSTANTS */
  34
  35 /* PROTOTYPES */
  36
  37 /* MACROS */
  38 /* taken from mingw's stdarg.h */
  39
  40 /* Amount of space required in an argument list (ie. the stack) for an
  41    argument of type t. */
  42 #define __va_argsiz(t) \
  43  (((sizeof(t) + sizeof(int) - 1) / sizeof(int)) * sizeof(int))
  44
  45 #define va_start(ap, pN) \
  46  ((ap) = ((va_list) (&pN) + __va_argsiz(pN)))
  47
  48 #define va_end(ap) ((void)0)
  49
  50 #define va_arg(ap, t) \
  51  (((ap) = (ap) + __va_argsiz(t)), \
  52  *((t*) (void*) ((ap) - __va_argsiz(t))))
  53
  54 #endif /* __STDARG_H_INCLUDED__ */
  55
  56 /* EOF */
  57