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>