// PR c++/44587 template <const int N> struct A { }; template <class T> struct B { static const int c; // { dg-message "not initialized with a constant expression" } typedef A<B<T>::c> C; // { dg-error "constant expression|template argument" } }; template <class T> const int B<T>::c = sizeof (T); template <const int N> struct D { }; template <class T> struct E { static const int c = sizeof (T); typedef D<E<T>::c> F; // OK };