[Bug c++/123752] [reflection] data_member_spec() doesn't accept default-initialized data_member_options

[boris.staletic at protonmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123752

Boris Staletic <boris.staletic at protonmail dot com> changed:

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--- Comment #3 from Boris Staletic <boris.staletic at protonmail dot com> ---
> test.cpp:7:3: error: uncaught exception of type 'std::meta::exception'; 'what()': 'neither name nor bit_width specified'

That's expected. It's a later change in the proposal that clang-p2996 fork has
not implemented.

An empty name implies an anonymous bit field. An empty bit_width implies a
non-bit field.