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From: "jonathan.leffler at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c/111693] New: Online manual mentions -Wuse-after-free but does
 not document it further
Date: Wed, 04 Oct 2023 17:01:56 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c
X-Bugzilla-Version: 13.2.0
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X-Bugzilla-Severity: normal
X-Bugzilla-Who: jonathan.leffler at gmail dot com
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X-Bugzilla-Priority: P3
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D111693

            Bug ID: 111693
           Summary: Online manual mentions -Wuse-after-free but does not
                    document it further
           Product: gcc
           Version: 13.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jonathan.leffler at gmail dot com
  Target Milestone: ---

In the 13.2.0 documentation
(https://gcc.gnu.org/onlinedocs/gcc-13.2.0/gcc/Warning-Options.html), the l=
ist
of options enabled by "-Wall" includes "-Wuse-after-free=3D2", but there is=
 no
further mention of the option on the page.

Similarly, in the 12.3.0 documentation
(https://gcc.gnu.org/onlinedocs/gcc-12.3.0/gcc/Warning-Options.html), the l=
ist
of options enabled by "-Wall" includes "-Wuse-after-free=3D3", but there is=
 no
further mention of the option on the page.

It is not mentioned at all in earlier manuals, presumably because it wasn't
available in the earlier versions.

It would be helpful to know what the values 2 and 3 mean, and presumably wh=
at 1
and 0 mean too.=