[Bug c++/52972] Pure virtual method is called instead of child's method

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52972

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-04-13 16:24:07 UTC ---
I think you are getting the correct behavior as the vtable for the base class
is the current vtable for this.

And "        return static_cast < Real* > (this);"  Does not change the vtable
of the return class.