1 files changed, 14 insertions, 2 deletions
diff --git a/test/std/utilities/memory/unique.ptr/unique.ptr.single/unique.ptr.single.ctor/auto_pointer.pass.cpp b/test/std/utilities/memory/unique.ptr/unique.ptr.single/unique.ptr.single.ctor/auto_pointer.pass.cpp
index 1ce1838afbb7..7c3ac462c287 100644
--- a/test/std/utilities/memory/unique.ptr/unique.ptr.single/unique.ptr.single.ctor/auto_pointer.pass.cpp
+++ b/test/std/utilities/memory/unique.ptr/unique.ptr.single/unique.ptr.single.ctor/auto_pointer.pass.cpp
@@ -7,17 +7,21 @@
 //
 //===----------------------------------------------------------------------===//
 
+// libc++ cannot safely provide the auto_ptr constructor without rvalue
+// references.
+// XFAIL: c++98, c++03
+
 // <memory>
 
 // unique_ptr
 
-// Test unique_ptr(pointer) ctor
+// template <class U> unique_ptr(auto_ptr<U>&&) noexcept
 
 #include <memory>
 #include <utility>
 #include <cassert>
 
-// template <class U> explicit unique_ptr(auto_ptr<U>&);
+#include "test_macros.h"
 
 struct A
 {
@@ -65,4 +69,12 @@ int main()
     }
     assert(A::count == 0);
     assert(B::count == 0);
+#if TEST_STD_VER >= 11
+    {
+        static_assert(std::is_nothrow_constructible<
+            std::unique_ptr<A>,
+            std::auto_ptr<B>&&
+        >::value, "");
+    }
+#endif
 }