From:	"John M. Aldrich" <fighteer AT cs DOT net>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: trouble with ellipes in functions
Date:	Mon, 17 Aug 1998 18:26:59 -0400
Organization:	Two pounds of chaos and a pinch of salt.
Lines:	22
Message-ID:	<35D8AE33.1B71DA73@cs.net>
References:	<35D5B0EE DOT 1E94 AT osu DOT edu>
NNTP-Posting-Host:	ppp232.cs.net
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

brentlinger DOT 4 AT osu DOT edu wrote:
> 
> I'm writing a function that needs a varible numder of inputs ie (,...)
> but I can,t seem to get it to work. Could someone post the sources to
> printf() or a similar example?

What you are looking for is the variable arguments functionality of ANSI
C.  These are implemented through a type, va_list, and the macros
va_start(), va_arg(), and va_end(), all defined in <stdarg.h>.  They are
not directly documented in the DJGPP libc docs.  However, you can find
an example of use in the library sources for vprintf(), vsprintf(),
vfprintf(), etc., also declared in <stdarg.h>.

The comp.lang.c FAQ (http://www.eskimo.com/~scs/C-faq/top.html)
discusses variable argument lists in chapter 15.

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