[PATCH] D68185: [Diagnostics] Warn when class implements a copy constructor/copy assignment operator, but missing the copy assignment operator/copy constructor

[Dávid Bolvanský via Phabricator via cfe-commits]

xbolva00 added a comment.

Should we reconsider this as a clang warning? I found that the newest GCC can diagnose it.

GCC 9+:

-Wdeprecated-copy, implied by -Wextra, warns about the C++11 deprecation of implicitly declared copy constructor and assignment operator if one of them is user-provided. -Wdeprecated-copy-dtor also warns if the destructor is user-provided, as specified in C++11.

It woule be nice to keep compatibility. -Wextra seems reasonable for me too.


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https://reviews.llvm.org/D68185