[Bug c++/56868] Constexpr example in 7.1.5/5 fails to compile correctly

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56868

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2013-04-07 18:51:00 UTC ---
Looks like 0*0 is being considered a null pointer constant.