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view gcc/testsuite/g++.dg/cpp0x/Wredundant-move2.C @ 131:84e7813d76e9
gcc-8.2
author | mir3636 |
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date | Thu, 25 Oct 2018 07:37:49 +0900 |
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// PR c++/87029 // { dg-do compile { target c++11 } } // { dg-options "-Wredundant-move" } // Define std::move. namespace std { template<typename _Tp> struct remove_reference { typedef _Tp type; }; template<typename _Tp> struct remove_reference<_Tp&> { typedef _Tp type; }; template<typename _Tp> struct remove_reference<_Tp&&> { typedef _Tp type; }; template<typename _Tp> constexpr typename std::remove_reference<_Tp>::type&& move(_Tp&& __t) noexcept { return static_cast<typename std::remove_reference<_Tp>::type&&>(__t); } } struct T { }; struct U { U(T); }; template<typename Tp> T fn1 (T t) { // Non-dependent type. return std::move (t); // { dg-warning "redundant move in return statement" } } template<typename Tp1, typename Tp2> Tp1 fn2 (Tp2 t) { return std::move (t); // { dg-warning "redundant move in return statement" } } template<typename Tp1, typename Tp2> Tp1 fn3 (Tp2 t) { return std::move (t); // { dg-warning "redundant move in return statement" } } int main () { T t; fn1<T>(t); fn2<T, T>(t); fn3<U, T>(t); }