From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27839 invoked by alias); 24 May 2002 17:56:01 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 27790 invoked by uid 71); 24 May 2002 17:56:01 -0000 Resent-Date: 24 May 2002 17:56:01 -0000 Resent-Message-ID: <20020524175601.27789.qmail@sources.redhat.com> Resent-From: gcc-gnats@gcc.gnu.org (GNATS Filer) Resent-To: nobody@gcc.gnu.org Resent-Cc: gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org Resent-Reply-To: gcc-gnats@gcc.gnu.org, davem@redhat.com Received:(qmail 24528 invoked by uid 61); 24 May 2002 17:48:24 -0000 Message-Id:<20020524174824.24527.qmail@sources.redhat.com> Date: Fri, 24 May 2002 11:14:00 -0000 From: davem@redhat.com Reply-To: davem@redhat.com To: gcc-gnats@gcc.gnu.org X-Send-Pr-Version:gnatsweb-2.9.3 (1.1.1.1.2.31) Subject: c/6801: void * dereference warning given when no evaluation occurs X-SW-Source: 2002-05/txt/msg00785.txt.bz2 List-Id: >Number: 6801 >Category: c >Synopsis: void * dereference warning given when no evaluation occurs >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: sw-bug >Submitter-Id: net >Arrival-Date: Fri May 24 10:56:00 PDT 2002 >Closed-Date: >Last-Modified: >Originator: davem@redhat.com >Release: 3.1 >Organization: >Environment: sparc-unknown-linux >Description: __typeof__(*ptr) *foo; causes a warning if 'ptr' is 'void *' It warns about a void pointer dereference, but this expression does not evaluate, it only determines the type, so the warning appears at best silly. This makes some macros very hard to implement. >How-To-Repeat: Try to use __typeof__(*ptr) when 'ptr' is 'void *' >Fix: No idea. >Release-Note: >Audit-Trail: >Unformatted: