From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-return-89636-listarch-gcc=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 9198 invoked by alias); 20 Jan 2004 23:42:42 -0000
Mailing-List: contact gcc-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc/>
List-Post: <mailto:gcc@gcc.gnu.org>
List-Help: <http://gcc.gnu.org/ml/>
Sender: gcc-owner@gcc.gnu.org
Received: (qmail 8529 invoked from network); 20 Jan 2004 23:42:07 -0000
Received: from unknown (HELO fencepost.gnu.org) (199.232.76.164)
  by sources.redhat.com with SMTP; 20 Jan 2004 23:42:07 -0000
Received: from monty-python.gnu.org ([199.232.76.173])
	by fencepost.gnu.org with esmtp (Exim 4.24)
	id 1Aj5Tb-0002Tp-E2
	for gcc@gnu.org; Tue, 20 Jan 2004 18:40:07 -0500
Received: from mail by monty-python.gnu.org with spam-scanned (Exim 4.24)
	id 1Aj5V1-0001gc-Nb
	for gcc@gnu.org; Tue, 20 Jan 2004 18:42:06 -0500
Received: from [192.19.192.110] (helo=alageremail2.agere.com)
	by monty-python.gnu.org with esmtp (Exim 4.24)
	id 1Aj4qm-0005nH-7H
	for gcc@gnu.org; Tue, 20 Jan 2004 18:00:00 -0500
Received: from alerelay.agere.com (alerelay.agere.com [135.14.190.33])
	by alageremail2.agere.com (8.11.7+Sun/8.10.2) with ESMTP id i0KMxvc18842
	for <gcc@gnu.org>; Tue, 20 Jan 2004 17:59:57 -0500 (EST)
Received: from palex2kh01.ags.agere.com (palex2kh01.agere.com [128.94.210.100])
	by alerelay.agere.com (8.11.6+Sun/8.11.6) with ESMTP id i0KMxux22302
	for <gcc@gnu.org>; Tue, 20 Jan 2004 17:59:56 -0500 (EST)
Received: from PAUEX2KF01.ags.agere.com ([135.14.186.42]) by palex2kh01.ags.agere.com with Microsoft SMTPSVC(5.0.2195.6713);
	 Tue, 20 Jan 2004 17:59:56 -0500
Received: from Swamilaptop ([128.94.182.218]) by PAUEX2KF01.ags.agere.com with Microsoft SMTPSVC(5.0.2195.6713);
	 Tue, 20 Jan 2004 17:59:56 -0500
Message-ID: <010a01c3dfa9$1f4f1790$dab65e80@ags.agere.com>
From: "Swaminathan Venkatakrishnaprasad" <vswami@agere.com>
To: <gcc@gnu.org>
Subject: Declaring automatic variables inside a while loop
Date: Tue, 20 Jan 2004 23:42:00 -0000
MIME-Version: 1.0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: 7bit
X-OriginalArrivalTime: 20 Jan 2004 22:59:56.0331 (UTC) FILETIME=[1F40BFB0:01C3DFA9]
X-Spam-Status: No, hits=0.0 required=5.0
	tests=none
	version=2.55
X-Spam-Level: 
X-Spam-Checker-Version: SpamAssassin 2.55 (1.174.2.19-2003-05-19-exp)
X-SW-Source: 2004-01/txt/msg01591.txt.bz2

Hello,

Could you please let me know if it is 
valid to declare an automatic variable 
inside a for loop. If yes, is it also allowed
in ANSI standard (could you please refer
me to the sec #).

Example:
void f()
{
    int i;
    i = 10;
    while(i >=0 )
    {
       int j;
       i=j;
       printf("j=%d \n", j);
       i--;
    }
return;
}

Also, in the above example would
the number of iterations contribute anything to the stack
size since an automatic variable is declared
inside the while loop??

Your input is very much appreciated.

Thanks & Regards,
Swaminathan Venkat