1template<class T> struct C1 2{ 3 template<class U> struct C2 4 { class Type { }; }; 5}; 6 7template<class T, class U> 8void foo(typename C1<T>::C2<U>::Type *) { } // { dg-error "template" "error " } 9// { dg-message "note" "note" { target *-*-* } 8 } 10