Bug 112309 - enhancement: extra flags to let -Wshadow skip if..else and lambda blocks
Summary: enhancement: extra flags to let -Wshadow skip if..else and lambda blocks
Status: UNCONFIRMED
Alias: None
Product: gcc
Classification: Unclassified
Component: c++ (show other bugs)
Version: 14.0
: P3 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
URL:
Keywords: diagnostic
Depends on:
Blocks: new-warning, new_warning
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Reported: 2023-10-31 10:48 UTC by Joachim Wuttke
Modified: 2023-10-31 22:01 UTC (History)
1 user (show)

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Description Joachim Wuttke 2023-10-31 10:48:21 UTC 
Suggestion: add a flag -Wnoshadow-ifelse to prevent -Wshadow from reporting shadowing in "else if" constructs like

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


A similar approach (-Wnoshadow-lambda) could help to resolve https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79328.