1 // PR c++/71774 2 // { dg-do compile { target c++11 } } 3 4 class Meow 5 { 6 protected: 7 Meow() =default; f()8 virtual void f() {} 9 }; 10 11 class Purr : public Meow 12 { 13 public: Purr()14 Purr() 15 : Meow{} 16 {} 17 }; 18