Here is another example where the strong attribute goes funny (this is reduced from 23_containers/ vector/modifiers/swap.cc with -D_GLIBCXX_DEBUG on). This is a regression in that we did not ICE before. 3.4 also rejects the code too so the reject valid is not a regression but fixing the the reject valid will also fix the ICE. namespace __gnu_debug_def { } namespace std { using namespace __gnu_debug_def __attribute__ ((strong)); template<typename _Tp> class allocator {}; } namespace __gnu_debug_def { template<typename _Tp, typename _Allocator = std::allocator<_Tp> > class vector { void swap(vector<_Tp,_Allocator>& __x); }; } namespace std { template<> void vector<int, allocator<int> >::swap(vector<int, allocator<int> >&) { } }
-- Summary: [4.0 Regression] strong attribute is not strong enough Product: gcc Version: 4.0.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P2 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: pinskia at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19550