[all-commits] [llvm/llvm-project] 1351aa: [clang] Add test for CWG1820 "Qualified typedef na...

[Vlad Serebrennikov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1351aabf542b25e3ff1d36f4f2abe6727d0f19aa
      https://github.com/llvm/llvm-project/commit/1351aabf542b25e3ff1d36f4f2abe6727d0f19aa
  Author: Vlad Serebrennikov <serebrennikov.vladislav at gmail.com>
  Date:   2024-05-11 (Sat, 11 May 2024)

  Changed paths:
    M clang/test/CXX/drs/cwg18xx.cpp
    M clang/www/cxx_dr_status.html

  Log Message:
  -----------
  [clang] Add test for CWG1820 "Qualified typedef names" (#91765)

[P1787R6](https://wg21.link/p1787r6):
> [CWG1820](https://cplusplus.github.io/CWG/issues/1820.html) is
resolved by requiring that a qualified declarator-id declare an entity.

P1787R6 changes wording of [dcl.pre]/9. Quote from the current draft
([[dcl.pre]/5](https://eel.is/c++draft/dcl.pre#5)):
> If a
[declarator-id](https://eel.is/c++draft/dcl.decl.general#nt:declarator-id)
is a name, the
[init-declarator](https://eel.is/c++draft/dcl.decl.general#nt:init-declarator)
and (hence) the declaration introduce that
name[.](https://eel.is/c++draft/dcl.pre#5.sentence-1)
> [Note [3](https://eel.is/c++draft/dcl.pre#note-3): Otherwise, the
[declarator-id](https://eel.is/c++draft/dcl.decl.general#nt:declarator-id)
is a
[qualified-id](https://eel.is/c++draft/expr.prim.id.qual#nt:qualified-id)
or names a destructor or its
[unqualified-id](https://eel.is/c++draft/expr.prim.id.unqual#nt:unqualified-id)
is a [template-id](https://eel.is/c++draft/temp.names#nt:template-id)
and no name is
introduced[.](https://eel.is/c++draft/dcl.pre#5.sentence-2)
— end note]



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