From owner-freebsd-hackers Sat Sep 28 09:48:42 1996 Return-Path: owner-hackers Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id JAA13120 for hackers-outgoing; Sat, 28 Sep 1996 09:48:42 -0700 (PDT) Received: from mexico.brainstorm.eu.org (root@mexico.brainstorm.eu.org [193.56.58.253]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id JAA13073 for ; Sat, 28 Sep 1996 09:48:36 -0700 (PDT) Received: from brasil.brainstorm.eu.org (brasil.brainstorm.eu.org [193.56.58.33]) by mexico.brainstorm.eu.org (8.7.5/8.7.3) with ESMTP id SAA03204 for ; Sat, 28 Sep 1996 18:48:26 +0200 Received: (from uucp@localhost) by brasil.brainstorm.eu.org (8.6.12/8.6.12) with UUCP id SAA32383 for FreeBSD-hackers@freebsd.org; Sat, 28 Sep 1996 18:48:02 +0200 Received: (from roberto@localhost) by keltia.freenix.fr (8.8.0/keltia-uucp-2.9) id SAA01298; Sat, 28 Sep 1996 18:37:22 +0200 (MET DST) Message-Id: <199609281637.SAA01298@keltia.freenix.fr> Date: Sat, 28 Sep 1996 18:37:22 +0200 From: roberto@keltia.freenix.fr (Ollivier Robert) To: FreeBSD-hackers@freebsd.org (FreeBSD-hackers) Subject: Re: stack In-Reply-To: <199609281520.RAA05793@gvr.win.tue.nl>; from Guido van Rooij on Sep 28, 1996 17:20:52 +0200 References: <199609281520.RAA05793@gvr.win.tue.nl> X-Mailer: Mutt 0.44.1 Mime-Version: 1.0 X-Operating-System: FreeBSD 2.2-CURRENT ctm#2490 Sender: owner-hackers@freebsd.org X-Loop: FreeBSD.org Precedence: bulk According to Guido van Rooij: > When I allocate something on the stack, isn't it supposed to be completely > zero? > like: > main(int argc, char **argv) { > char buf[1000]; As John said, first time it will be zeroed but remember that automatic arrays are not supposed to be cleared at all if I remember well ANSI C... Always clear them if you depend on it. -- Ollivier ROBERT -=- The daemon is FREE! -=- roberto@keltia.freenix.fr FreeBSD keltia.freenix.fr 2.2-CURRENT #0: Sat Sep 21 00:18:27 MET DST 1996