[Bug c++/72751] anonymous union within an anonymous union accepted without diagnostic (i.e. add -Wnested-anon-types)

[mpolacek at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72751

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mpolacek at gcc dot gnu.org

--- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Test from Bug 113919:

struct _ {
    union
    {
        union {
            int __;
        };
    };
};

int main(){return 0;}