[llvm-bugs] [Bug 47843] clang accepts an abstract class in function return type

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=47843

Richard Smith <richard-llvm at metafoo.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |INVALID
             Status|NEW                         |RESOLVED

--- Comment #1 from Richard Smith <richard-llvm at metafoo.co.uk> ---
Clang is correct; the rule in question was changed a couple of years back,
because the previous rule was problematic / broken. See
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2018/p0929r2.html

I guess GCC doesn't yet implement the new rule.

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