Comment by jmaygarden

Use of static in the context of that C snippet is deprecated in C++. One is supposed to use an unnamed namespace instead.

    namespace {
        int myfunc() {
            return 5;
        }
    
        int x;
        int y = 4;
        int z = myfunc();
     };

     int main()
     {}

In my opinion, his point is still valid.