[Bug c++/52901] invalid rvalue reference

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52901

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|major                       |normal

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-04-08 18:05:49 UTC ---
(In reply to comment #3)
> g++ warns for
> 
> return X();
> return static_cast<X&&>(x);
> 
> but not
> 
> return std::move(x);

Nor for

X& g(X& x) { return x; }

X& f() {
        X x;
        return g(x);
}


I opened PR 49974 to request a warning there, we don't need another :)