Cppcheck variadic template issue

variadic_template_issue.cpp

template <typename> struct a;
template <typename> struct b;
template <typename... c> struct d : a<b<c...>> {};
int main() {}

/* Output:

Checking prep.cpp ...


##file prep.cpp
1: template < typename > struct a ;
2: template < typename > struct b ;
3: template < typename . . . c > struct d : a < b < c . . . >> { } ;
4: int main ( ) { }



##Value flow
[prep.cpp:3]: (error) syntax error


*/