From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-182645-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 16364 invoked by alias); 11 Apr 2006 15:56:52 -0000
Received: (qmail 16337 invoked by uid 48); 11 Apr 2006 15:56:49 -0000
Date: Tue, 11 Apr 2006 15:56:00 -0000
Subject: [Bug c/27120]  New: Should warn about uninitialized use of variable array element
X-Bugzilla-Reason: CC
Message-ID: <bug-27120-10053@http.gcc.gnu.org/bugzilla/>
Reply-To: gcc-bugzilla@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org
From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-help@gcc.gnu.org>
Sender: gcc-bugs-owner@gcc.gnu.org
X-SW-Source: 2006-04/txt/msg00885.txt.bz2
List-Id: <gcc-bugs.sourceware.org>

int foo(int i)
{
  char buffer[10];
  return buffer[i];
}

does not warn about the use of uninitialized array buffer.  While

int foo(int i)
{
  char buffer[10];
  return buffer[2];
}

does.  Likewise for C++.


-- 
           Summary: Should warn about uninitialized use of variable array
                    element
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: diagnostic
          Severity: enhancement
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at gcc dot gnu dot org
OtherBugsDependingO 24639
             nThis:


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27120