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.
