varargs.h -- Header File

Declare/define routines for variable arguments
#include <varargs.h>

The header file  <varargs.h> prototypes and defines the routines used
to manage variable arguments.  These routines are modelled after those used
in UNIX  System V.   The routines  in varargs.h were  designed to give  a C
compiler a semi-rational way of dealing with functions (e.g., printf())
that can  take a  variable number of  arguments.  In brief,  these routines
consist  of the  variable-list typedef  va_list, the  parameter declaration
va_dcl, and the three macros va_start(), va_arg(), and va_end(). The macros
respectively start  the argument list,  fetch the next member,  and end the
argument list.

See Also

header files,
stdarg.h

Notes

These routines  are also implemented  in the header  file <stdarg.h>,
which  is  described  in the  ANSI  Standard.   For  details  on how  these
implementations differ, see the entry for stdarg.h.

© 2012 by Stephen A. Ness