xbolva00 added a comment.

In D130894#3715124 <https://reviews.llvm.org/D130894#3715124>, @mstorsjo wrote:

> This broke building with GCC (also noted by buildbot mails):
>
>   ../tools/clang/lib/Sema/SemaDeclCXX.cpp: In member function ‘void 
> clang::Sema::DiagnoseStaticAssertDetails(const clang::Expr*)’:
>   ../tools/clang/lib/Sema/SemaDeclCXX.cpp:16666:19: error: declaration of 
> ‘const clang::Expr* clang::Sema::DiagnoseStaticAssertDetails(const 
> clang::Expr*)::<unnamed struct>::Expr’ changes meaning of ‘Expr’ 
> [-fpermissive]
>   16666 |       const Expr *Expr;
>         |                   ^~~~
>   In file included from ../tools/clang/include/clang/AST/DeclCXX.h:22,
>                    from ../tools/clang/include/clang/AST/ASTLambda.h:18,
>                    from ../tools/clang/lib/Sema/SemaDeclCXX.cpp:15:
>   ../tools/clang/include/clang/AST/Expr.h:109:7: note: ‘Expr’ declared here 
> as ‘class clang::Expr’
>     109 | class Expr : public ValueStmt {
>         |       ^~~~

It is kinda bad that GCC throws an error and Clang does not even print a 
warning.

How is it even possible? Clang does not implement strict(er) rules ? 
@aaron.ballman


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D130894/new/

https://reviews.llvm.org/D130894

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