1 // Core Issue #1331 (const mismatch with defaulted copy constructor) 2 // { dg-do compile { target c++11 } } 3 4 struct M 5 { 6 M(); 7 M(M&); 8 }; 9 10 template<typename T> struct W 11 { 12 W(); 13 W(const W&) = default; // { dg-error "binding" } 14 T t; 15 }; 16 17 W<M> w; 18 W<M> w2 = w; // { dg-error "use of deleted function" } 19