title: Why is VC++ C4150 (deletion of pointer to incomplete type) only a warning?
body: <p>Of course, warning must be treated, but <strong>why is VC++ <a href="http://msdn.microsoft.com/en-us/library/ba5dy3f2.aspx" rel="noreferrer">C4150</a></strong> (deletion of pointer to incomplete type) <strong>only a warning?</strong></p>