0x09

    struct { int a; int b; } f() {
        return (typeof(f())){1,2};
    }
    int g() {
        typeof(f()) x = f();
        return x.a + x.b;
    }

  void *x = malloc(...);
  free(x);
  if(x); // undefined behavior

   clang --analyze --analyzer-output text ...

   void f(char (*n)[255]);
   char array[6];
   f(&array);