[Bug c++/42121] g++ should warn or error on internal 0 size array in struct

[msebor at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42121

--- Comment #10 from Martin Sebor <msebor at gcc dot gnu.org> ---
Patch posted for review:
https://gcc.gnu.org/ml/gcc-patches/2015-11/msg02595.html