https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43144
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Starting GCC 4.5.x we get the following error message first: <source>: In function 'typename std::remove_reference<_Tp>::type&& std0x::move(T&&) [with T = int&, typename std::remove_reference<_Tp>::type = int]': <source>:36:22: instantiated from 'void std0x::swap(T&, T&) [with T = int]' <source>:174:23: instantiated from here <source>:30:36: error: invalid initialization of reference of type 'std::remove_reference<int&>::type&&' from expression of type 'int' Note clang also gets that error message. I have no idea if this is valid code or not.
