18 lines · c
1struct OuterX {2 template<typename T>3 struct Inner {4 int oX_inner = 42;5 };6};7 8struct OuterY {9 template<typename T>10 struct Inner {11 typename OuterX::Inner<T> oY_inner;12 };13};14 15struct WrapperB;16 17WrapperB* foo();18