[Bug c/82283] Wrong warning with -Wmissing-field-initializers

[rsandifo at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82283

rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> changed:

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

--- Comment #12 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> ---
Here's another example, from Alexey Neyman
[https://gcc.gnu.org/pipermail/gcc-help/2022-February/141197.html]:

struct foo {
        const char *a1;
        const char * const *a2;
        void *a3;
        void *a4;
};

const char *aux[] = { "y", 0 };

struct foo a = {
        .a1 = "x",
#if defined(CASE1)
        .a2 = (const char * const []){ "y", 0 },
#elif defined(CASE2)
        .a2 = aux,
#elif defined(CASE3)
        .a2 = 0,
#elif defined(CASE4)
        /* .a2 not initialized */
#elif defined(CASE5)
        .a2 = (const char * const []){ "y", 0 },
        .a3 = 0,
#endif
};

struct foo b = {
        .a2 = (const char * const []){ "y", 0 },
        .a1 = "x",
};

Only CASE1 of a warns; the others are (correctly) accepted
without warnings.