posix/include/stdarg.h

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