The following program causes an internal compiler error when compiled with gcc-3.4.3 or gcc-4.0 (CVS):
template <typename T> class C { public: void foo(); }; template <typename T> void C<T>::foo() { union { struct { }; }; }; int main() { return 0; } -- Summary: ICE when C++ template function contains anonymous union Product: gcc Version: 3.4.3 Status: UNCONFIRMED Severity: normal Priority: P2 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: us15 at os dot inf dot tu-dresden dot de CC: gcc-bugs at gcc dot gnu dot org GCC build triplet: i486-slackware-linux GCC host triplet: i486-slackware-linux GCC target triplet: i486-slackware-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20153