From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugs-return-184481-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 8014 invoked by alias); 1 May 2006 15:18:22 -0000
Received: (qmail 8006 invoked by uid 48); 1 May 2006 15:18:19 -0000
Date: Mon, 01 May 2006 15:18:00 -0000
Subject: [Bug c++/27370]  New: Bogus warning about ignoring function return value (__attribute__ ((warn_unused_result)))
X-Bugzilla-Reason: CC
Message-ID: <bug-27370-10053@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: 2006-05/txt/msg00037.txt.bz2
List-Id: <gcc-bugs.sourceware.org>

class QByteArray {
public:
  QByteArray(const QByteArray &);
};
class QString {
  QByteArray toLocal8Bit() const __attribute__ ((warn_unused_result));
  inline QByteArray local8Bit() const{ return toLocal8Bit(); }
};

Produces with g++ -S -Wall:

test.1.1.min.ii: In member function 'QByteArray QString::local8Bit() const':
test.1.1.min.ii:7: warning: ignoring return value of 'QByteArray
QString::toLocal8Bit() const', declared with attribute warn_unused_result


-- 
           Summary: Bogus warning about ignoring function return value
                    (__attribute__ ((warn_unused_result)))
           Product: gcc
           Version: 4.0.3
            Status: UNCONFIRMED
          Keywords: diagnostic
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: rguenth at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27370