LWG 1191 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@119545 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/tuple b/include/tuple index e134bdf..27c16ed 100644 --- a/include/tuple +++ b/include/tuple
@@ -88,6 +88,7 @@ // 20.4.1.5, element access: template <intsize_t I, class... T> typename tuple_element<I, tuple<T...>>::type& get(tuple<T...>&); template <intsize_t I, class... T> typename tuple_element<I, tuple<T...>>::type const& get(const tuple<T...>&); +template <intsize_t I, class... T> typename tuple_element<I, tuple<T...>>::type&& get(tuple<T...>&&); // 20.4.1.6, relational operators: template<class... T, class... U> bool operator==(const tuple<T...>&, const tuple<U...>&); @@ -430,6 +431,8 @@ typename tuple_element<_Jp, tuple<_Up...>>::type& get(tuple<_Up...>&); template <size_t _Jp, class ..._Up> friend const typename tuple_element<_Jp, tuple<_Up...>>::type& get(const tuple<_Up...>&); + template <size_t _Jp, class ..._Up> friend + typename tuple_element<_Jp, tuple<_Up...>>::type&& get(tuple<_Up...>&&); public: _LIBCPP_INLINE_VISIBILITY @@ -583,6 +586,15 @@ return static_cast<const __tuple_leaf<_Ip, type>&>(__t.base_).get(); } +template <size_t _Ip, class ..._Tp> +inline _LIBCPP_INLINE_VISIBILITY +typename tuple_element<_Ip, tuple<_Tp...>>::type&& +get(tuple<_Tp...>&& __t) +{ + typedef typename tuple_element<_Ip, tuple<_Tp...>>::type type; + return static_cast<__tuple_leaf<_Ip, type>&&>(__t.base_).get(); +} + // tie template <class ..._Tp> 