X-Recipient: archive-cygwin@delorie.com
X-SWARE-Spam-Status: No, hits=-2.5 required=5.0 	tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS
X-Spam-Check-By: sourceware.org
To: cygwin@cygwin.com
From: Eric Blake <ebb9@byu.net>
Subject:  Re: lseek() returning Invalid Argument
Date: Tue, 15 Sep 2009 23:07:44 +0000 (UTC)
Lines: 25
Message-ID:  <loom.20090916T010637-811@post.gmane.org>
References:  <h8p54p$j1l$1@ger.gmane.org>
Mime-Version:  1.0
Content-Type:  text/plain; charset=us-ascii
Content-Transfer-Encoding:  7bit
User-Agent: Loom/3.14 (http://gmane.org/)
X-IsSubscribed: yes
Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe@cygwin.com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin@cygwin.com>
List-Help: <mailto:cygwin-help@cygwin.com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner@cygwin.com
Mail-Followup-To: cygwin@cygwin.com
Delivered-To: mailing list cygwin@cygwin.com

gballey <galley <at> ace-co.com> writes:

> Anyone got an idea of what is going on here?

Yep.


Oh, you wanted to know what your bug is?

> 
> Thanks.
> 
> /* begin test.c */
> 
> #include <fcntl.h>
> #include <stdio.h>

Oops - no #include <unistd.h>.  lseek takes 64-bit type arguments, but without 
a declaration from the correct header, the compiler assumes it takes int 
arguments.  Try compiling with -Wall.

-- 
Eric Blake




--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple