Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!ncrlnk!wright!thor.wright.edu
From: econrad@thor.wright.edu (Eric Conrad)
Newsgroups: comp.lang.c
Subject: Re: Variable Parameters
Message-ID: <897@thor.wright.EDU>
Date: 2 Jan 90 21:05:15 GMT
References: <1169@zip.eecs.umich.edu>
Sender: news@wright.EDU
Reply-To: econrad@thor.wright.edu
Lines: 22

From article <1169@zip.eecs.umich.edu>,
    by bagchi@dip.eecs.umich.edu (Ranjan Bagchi):
> 
>         I'm working, currently, on a project that involves a function that
> could take any number or arguments.  I would like to pass it only
> those arguments, i.e. no "flags" at the end which tell the function
> to stop.

If I understand the ANSI C mechanism, which uses varargs.h, you have to
pass either some indication of the number of parameters or a sentinel
parameter.  I used this method once several months ago and found it a
bit cumbersome.

An alternative is to write a stack handling module and use it to push
and pop parameters.  The pop function could then return an stack empty
status.  The additional source code would be on the push side.

-- Eric Conrad
+----------------------------------------------------------+
| Eric Conrad - Wright State University                    |
| "Progress was all right once, but it went on too long."  |
+----------------------------------------------------------+