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render the function deleted instead of rendering the program ill-formed.
This change also adds an enabled-by-default warning for the case where
an explicitly-defaulted special member function of a non-template class
is implicitly deleted by the type checking rules. (This fires either due
to this language change or due to pre-C++20 reasons for the member being
implicitly deleted). I've tested this on a large codebase and found only
bugs (where the program means something that's clearly different from
what the programmer intended), so this is enabled by default, but we
should revisit this if there are problems with this being enabled by
default.
llvm-svn: 343285
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implicitly deleted and overrides a non-deleted function, explain why the
function is deleted. For PR30844.
llvm-svn: 285610
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overriding a non-deleted virtual function. The existing check for this doesn't
catch this case, because it fires before we mark the method as deleted.
llvm-svn: 178563
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diagnostic, add a test for this paragraph, and tighten up the diagnostic wording
a little.
llvm-svn: 155784
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explicitly, deleted in all relevant cases, and explain why.
llvm-svn: 153894
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member function is deleted.
llvm-svn: 153773
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- variant members with nontrivial destructors make the containing class's
destructor deleted
- check for a virtual destructor after checking for overridden methods in the
base class(es)
- check for an inaccessible operator delete for a class with a virtual
destructor.
Do not try to call an anonymous union field's destructor from the destructor of
the containing class.
llvm-svn: 151483
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