1 // PR c++/70844
2 // { dg-options -Wuseless-cast }
3 // { dg-do compile { target c++11 } }
4 
5 struct base {
6     base (int const &);
7 };
8 
9 struct derived : public base {
10     using base::base;
11 };
12 
13 derived d(0);
14