------- Comment #5 from redi at gcc dot gnu dot org 2010-03-27 20:14 -------
With current versions this is only a warning not an error, changing keywords
from rejects-valid to diagnostic
(In reply to comment #3)
> There is no other way to make a member-variable accessible only from all
> objects which are of the same type. Am I wrong?
Yes.
(In reply to comment #4)
> The error doesn't occur if the friend is a template instance, so it really
> doesn't hurt anyone. But it's weird.
>
> template< int z >
> class F {
> friend class F<0>; // error only if <0> removed
> };
Well in that case it isn't friends with itself, so not really weird.
This shows that being a template has nothing to do with it:
template< int z >
class F {
friend class F<z>;
};
warning: class F<z> is implicitly friends with itself
--
redi at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords|rejects-valid |diagnostic
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29615
