http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54823
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-10-05 11:29:49 UTC --- *" " is not a constant expression according to the C standard. The standard says "An implementation may accept other forms of constant expressions" so ICC is allowed to accept it, but GCC is not required to.
