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From: "j.wuttke@fz-juelich.de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/112309] New: enhancement: extra flags to let -Wshadow skip
 if..else and lambda blocks
Date: Tue, 31 Oct 2023 10:48:21 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 14.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112309

            Bug ID: 112309
           Summary: enhancement: extra flags to let -Wshadow skip if..else
                    and lambda blocks
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: j.wuttke@fz-juelich.de
  Target Milestone: ---

Suggestion: add a flag -Wnoshadow-ifelse to prevent -Wshadow from reporting
shadowing in "else if" constructs like

if (auto* p =3D dynamic_cast<A>(x))
   ...
else if (auto* p =3D dynamic_cast<B>(x))
   ...
else if (auto* p =3D dynamic_cast<C>(x))
   ...


A similar approach (-Wnoshadow-lambda) could help to resolve
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D79328.=