1 // PR c++/65896 2 // { dg-do compile { target c++11 } } 3 4 struct base {}; 5 6 struct derived : base { derivedderived7 constexpr derived(): 8 base{}, 9 m_value(0) { 10 } 11 int m_value; 12 }; 13 by_ref(derived && value)14constexpr int by_ref(derived && value) { 15 return value.m_value; 16 } 17 18 constexpr int value = by_ref(derived{}); 19