Path: utzoo!attcan!uunet!ogicse!pdxgate!eecs!kirkenda
From: kirkenda@eecs.cs.pdx.edu (Steve Kirkendall)
Newsgroups: comp.os.os9
Subject: Re: Whats wrong with this picture
Message-ID: <326@pdxgate.UUCP>
Date: 13 Oct 90 15:29:27 GMT
References: <1068@bcs800.UUCP>
Sender: news@pdxgate.UUCP
Reply-To: kirkenda@eecs.UUCP (Steve Kirkendall)
Organization: Portland State University, Portland, OR
Lines: 16

In article <1068@bcs800.UUCP> jeffr@bcs800.UUCP (Jeff Riegel) writes:
>
>	if (fd = open(argv[1],1) < 0) {

Your problem comes from the fact that the "<" operator has a higher precedence
than the "=" operator, so that this line is parsed like this:

	if (fd = (open(argv[1],1) < 0)) {

Which isn't right.  If it opens the file successfully, then the fd will be set
to "false", or 0.  To have it parsed the way you want, try it this way instead:

	if ((fd = open(argv[1],1)) < 0) {

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Steve Kirkendall     kirkenda@cs.pdx.edu      Grad student at Portland State U.