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// PR c++/46046 template <class T> struct foo { template <class U, class V = void> struct type {}; template <class V> struct type< typename T::template some_type<int>, V > {}; }; template <class T> class bar {}; int main() { typedef foo<bar<int> > cont; cont::type<char> obj; // { dg-error "cannot be defined" } }