C Language and Libraries Help (clang.hlp) (Table of Contents; Topic list)
Variable-Length Argument Functions
 Description Example                     Up Contents Index Back
─────Run-Time Library───────────────────────────────────────────────────────
 
  Include:   <stdarg.h>, <stdio.h>, <varargs.h>
 
  Syntax:    void va_start( va_list arg_ptr, prev_param );     //ANSI
             void va_start( va_list arg_ptr );                 //UNIX
             type va_arg( va_list arg_ptr, type );
             void va_end( va_list arg_ptr );
 
  See also:  vprintf
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