1 // PR c++/87882 2 // { dg-do compile { target c++11 } } 3 // { dg-options "-Wredundant-move" } 4 5 // Define std::move. 6 namespace std { 7 template<typename _Tp> 8 struct remove_reference 9 { typedef _Tp type; }; 10 11 template<typename _Tp> 12 struct remove_reference<_Tp&> 13 { typedef _Tp type; }; 14 15 template<typename _Tp> 16 struct remove_reference<_Tp&&> 17 { typedef _Tp type; }; 18 19 template<typename _Tp> 20 constexpr typename std::remove_reference<_Tp>::type&& 21 move(_Tp&& __t) noexcept 22 { return static_cast<typename std::remove_reference<_Tp>::type&&>(__t); } 23 } 24 25 struct Foo { 26 Foo Bar() { 27 return std::move(*this); // { dg-bogus "redundant move in return statement" } 28 } 29 Foo Baz() { 30 return *this; 31 } 32 int i; 33 }; 34 35 void Move(Foo & f) 36 { 37 f = Foo{}.Bar(); 38 } 39 40 void NoMove(Foo & f) 41 { 42 f = Foo{}.Baz(); 43 } 44