[Bug c++/21146] unable to resolve visible symbol

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=21146

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
EDG still accepts this, but Clang doesn't:

21146.cc:13:18: error: member 'S' found in multiple base classes of different
types
  friend class A<S>;
                 ^
21146.cc:7:8: note: member found by ambiguous name lookup
struct S {};
       ^
21146.cc:4:13: note: member found by ambiguous name lookup
  typedef T S;
            ^
21146.cc:13:18: error: member 'S' found in multiple base classes of different
types
  friend class A<S>;
                 ^
21146.cc:7:8: note: member found by ambiguous name lookup
struct S {};
       ^
21146.cc:4:13: note: member found by ambiguous name lookup
  typedef T S;
            ^
2 errors generated.


I think GCC and Clang are right here.