It was broken in 5.1, it caused a serious miscompile that leads to uninitialized data. What would happen is exactly that, your clients could easily miscompile and receive uninitialized class instances when subclassing your classes.
It was broken in 5.1, it caused a serious miscompile that leads to uninitialized data. What would happen is exactly that, your clients could easily miscompile and receive uninitialized class instances when subclassing your classes.