VMS Help CC, Run-time functions, va_arg  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Returns the next item in the argument list.

  Syntax:

       #include <stdarg.h> (ANSI C)

       #include <varargs.h> (Compaq C Extension)

       type va_arg(va_list ap, type);