Flexible *pointer* array members

flexible_pointer_array_member.h

typedef typeof(unsigned long (^ _Nonnull __strong (* _Nonnull))(unsigned long)) predicate_function_ptr;
struct predicate_functions_arr_struct
{
    unsigned long len;
    predicate_function_ptr functions[];
};

static void(^test_flexible_array_member)(void) = ^{
    struct predicate_functions_arr_struct * p_functions = malloc(sizeof(struct predicate_functions_arr_struct) + (10 * sizeof(predicate_function_ptr)));
    p_functions->len = 10;
    for (unsigned long i = 0; i < p_functions->len; i++) {
        (p_functions->functions[i] = Block_copy((typeof(unsigned long(^*)(unsigned long)))CFBridgingRetain(^ (unsigned long p) {
            return ^ (unsigned long q) {
                printf("\np == %lu\nq == %lu\n", p, q);
                return p && q;
            };
        }(i))));
    }
    for (unsigned long i = 0; i < p_functions->len; i++) {
        unsigned long(^pf)(unsigned long) = CFBridgingRelease((p_functions->functions[i]));
        printf("pf[%lu] == %lu\n", i, pf(i));
    }
};

// test_flexible_array_member();