From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 1BDDE3840C38; Tue,  2 Jun 2020 03:42:14 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1BDDE3840C38
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
 s=default; t=1591069334;
 bh=0c6V1aXjWrVrnBU4VwauM+MKmZ8DAWse9q/C1nHIpU0=;
 h=From:To:Subject:Date:From;
 b=QOxBLmcK2B92hUdFQRGf1rWDZsWHVLHzA/iBtZixZxlHNdLoJHOJbrmoJFUUYnBiX
 N33HvlRSJCsxUnfEPKW7oWS1QJqC2MKgRUGPr/HXCmdJcQvZNX9ekUUuVDUky4Z4FY
 Wo3hrm8N5Ou8/k3gjj4O37kIbCojVjQsnA2M7eC4=
From: "xry111 at mengyan1223 dot wang" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/95472] New: various diagnostics for C/C++ hyperlinks
 to gfortran doc
Date: Tue, 02 Jun 2020 03:42:13 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: middle-end
X-Bugzilla-Version: 10.1.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: xry111 at mengyan1223 dot wang
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-95472-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <http://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <http://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Tue, 02 Jun 2020 03:42:14 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95472

            Bug ID: 95472
           Summary: various diagnostics for C/C++ hyperlinks to gfortran
                    doc
           Product: gcc
           Version: 10.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: xry111 at mengyan1223 dot wang
  Target Milestone: ---

$ cat t1.c
int main()
{
        int x;
        return x;
}
$ gcc t1.c -Wall
t1.c: In function 'main':
t1.c:4:9: warning: 'x' is used uninitialized in this function [-Wuninitiali=
zed]
    4 |  return x;
      |         ^

It looks OK, but in GCC-10 we have diagnostics with hyperlink.  If you clic=
k "-
Wuninitialized" you'll be diverted to gfortran doc:

https://gcc.gnu.org/onlinedocs/gfortran/Error-and-Warning-Options.html#inde=
x-Wuninitialized

This also happens to -Wreturn-type and -Wuninitialized.  Strangely these two
entries don't even exist in gfortran doc.  But it does not happens to -Wfor=
mat
or -Wimplicit-function-declaration etc.=