[Bug c++/103347] Non-static data member initialization is erroneously allowed in C++03 mode

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103347

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
That is GCC does warning about the following case:
struct test {
    int x = 0;
};
int main() {}