// PR c++/86981 // { dg-do compile { target c++11 } } // { dg-options "-Wpessimizing-move" } // Define std::move. namespace std { template struct remove_reference { typedef _Tp type; }; template struct remove_reference<_Tp&> { typedef _Tp type; }; template struct remove_reference<_Tp&&> { typedef _Tp type; }; template constexpr typename std::remove_reference<_Tp>::type&& move(_Tp&& __t) noexcept { return static_cast::type&&>(__t); } } struct T { }; T fn1 () { T t; return (1, std::move (t)); } T fn2 () { T t; return [&](){ return std::move (t); }(); } T fn3 () { T t; return [=](){ return std::move (t); }(); }