[Voted into the WP at the November, 2010 meeting.]

Proposed resolution (September, 2010):

Change 11.4.2 [class.mfct] paragraph 7 as follows:

Member Previously-declared member functions may be mentioned in friend declarations after their class has been defined.

The current wording of 11.4.2 [class.mfct] paragraph 7 allows friend declarations to name member functions “after their class has been defined.” This appears to prohibit a friend declaration in a nested class defined inside its containing class that names a member function of the containing class, because the containing class is still considered to be incomplete at that point.