#include <functional>
#include <type_traits>
+#include <string>
-int main()
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+class MoveOnly
+{
+ MoveOnly(const MoveOnly&);
+ MoveOnly& operator=(const MoveOnly&);
+
+ int data_;
+public:
+ MoveOnly(int data = 1) : data_(data) {}
+ MoveOnly(MoveOnly&& x)
+ : data_(x.data_) {x.data_ = 0;}
+ MoveOnly& operator=(MoveOnly&& x)
+ {data_ = x.data_; x.data_ = 0; return *this;}
+
+ int get() const {return data_;}
+};
+#endif
+
+
+template <class T>
+void test()
{
- typedef std::reference_wrapper<int> T;
- static_assert(std::is_copy_constructible<T>::value, "");
- static_assert(std::is_copy_assignable<T>::value, "");
+ typedef std::reference_wrapper<T> Wrap;
+ static_assert(std::is_copy_constructible<Wrap>::value, "");
+ static_assert(std::is_copy_assignable<Wrap>::value, "");
// Extension up for standardization: See N4151.
- static_assert(std::is_trivially_copyable<T>::value, "");
+ static_assert(std::is_trivially_copyable<Wrap>::value, "");
+}
+
+int main()
+{
+ test<int>();
+ test<double>();
+ test<std::string>();
+#ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
+ test<MoveOnly>();
+#endif
}