2 // { dg-do compile { target c++11 } }
11 R& operator=(R&&) = default;
17 S& operator=(const S&&) = default; // { dg-warning "implicitly deleted" "" { target c++20 } }
18 // { dg-error "does not match" "" { target c++17_down } .-1 }
25 T operator=(T&&) = default; // { dg-error "defaulted" }