------- Additional Comments From pinskia at gcc dot gnu dot org 2005-04-21 12:59 ------- 3.3.3 gave: t.cc:13: error: request for member `S' is ambiguous in multiple inheritance lattice t.cc:7: error: candidates are: struct S t.cc:4: error: typedef struct S A<S>::S t.cc:13: error: template argument 1 is invalid t.cc:13: error: ISO C++ forbids declaration of `type name' with no type
If the code is invalid, then we have a diagnostic regression. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21146