[Bug c++/100124] Why is "flexible array member '...' in an otherwise empty '...'" an issue?

[gcc at behdad dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100124

--- Comment #6 from Behdad Esfahbod <gcc at behdad dot org> ---
Thank you all. I understand it's unlikely to happen at this point.


In reply to Andrew Pinski from comment #1)
> I will let someone comment on the flexible array extension.
> 
> But I will note GCC treats (all) arrays at the end of a POD struct as a
> flexible one so the question I have is more about the ubsan issue you are
> running into, is that with GCC or with clang/LLVM?

The ubsan issue reported to us is with gcc:
https://github.com/harfbuzz/harfbuzz/issues/2953#issuecomment-823460893