From owner-freebsd-hackers@FreeBSD.ORG  Tue Jun 30 18:03:35 2009
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34])
	by hub.freebsd.org (Postfix) with ESMTP id 0A2231065672
	for <freebsd-hackers@freebsd.org>; Tue, 30 Jun 2009 18:03:35 +0000 (UTC)
	(envelope-from a_best01@uni-muenster.de)
Received: from zivm-out1.uni-muenster.de (ZIVM-OUT1.UNI-MUENSTER.DE
	[128.176.192.8])
	by mx1.freebsd.org (Postfix) with ESMTP id 933268FC26
	for <freebsd-hackers@freebsd.org>; Tue, 30 Jun 2009 18:03:34 +0000 (UTC)
	(envelope-from a_best01@uni-muenster.de)
X-IronPort-AV: E=Sophos;i="4.42,317,1243807200"; d="scan'208";a="275910304"
Received: from zivmaildisp2.uni-muenster.de (HELO
	ZIVMAILUSER05.UNI-MUENSTER.DE) ([128.176.188.143])
	by zivm-relay1.uni-muenster.de with ESMTP; 30 Jun 2009 20:03:21 +0200
Received: by ZIVMAILUSER05.UNI-MUENSTER.DE (Postfix, from userid 149459)
	id 47CE11B07E4; Tue, 30 Jun 2009 20:03:21 +0200 (CEST)
Date: Tue, 30 Jun 2009 20:03:21 +0200 (CEST)
From: Alexander Best <alexbestms@math.uni-muenster.de>
Sender: <a_best01@uni-muenster.de>
Organization: Westfaelische Wilhelms-Universitaet Muenster
To: Igor Mozolevsky <igor@hybrid-lab.co.uk>
Message-ID: <permail-20090630180321f7e55a9d00002466-a_best01@message-id.uni-muenster.de>
In-Reply-To: <a2b6592c0906301100g55827437o66e09d6ca1269cdd@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Cc: freebsd-hackers@freebsd.org
Subject: Re: c question: *printf'ing arrays
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 30 Jun 2009 18:03:35 -0000

should be stdout.


struct Header *hdr = rom;

int new_fd = open("/dev/stdout", O_RDWR);

printf("SIZE: %d\n",sizeof(*hdr));

write(new_fd, hdr, sizeof(*hdr));

close(new_fd);

Igor Mozolevsky schrieb am 2009-06-30:
> 2009/6/30 Alexander Best <alexbestms@math.uni-muenster.de>:
> > that works, but i really want to have a pretty output to stdout. i
> > guess i
> > have to stick with printf and use `for (i=0; i < sizeof(XXX); i++)`
> > for each
> > array in the struct. just thought i could avoid it.

> > btw. `./my-program | hexdump` works, but if i do `./my-program >
> > output`
> > output is being created, but is empty. is this normal?

> Depends if you output to stdout or stderr --- `>' redirects stdout.


> Cheers,
> --
> Igor