1 files changed, 40 insertions, 0 deletions
diff --git a/libcxx/test/std/experimental/optional/optional.object/optional.object.observe/value_const.fail.cpp b/libcxx/test/std/experimental/optional/optional.object/optional.object.observe/value_const.fail.cpp
new file mode 100644
index 00000000000..f0f8af6da45
--- /dev/null
+++ b/libcxx/test/std/experimental/optional/optional.object/optional.object.observe/value_const.fail.cpp
@@ -0,0 +1,40 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <optional>
+
+// constexpr const T& optional<T>::value() const;
+
+#include <experimental/optional>
+#include <type_traits>
+#include <cassert>
+
+#if _LIBCPP_STD_VER > 11
+
+using std::experimental::optional;
+
+struct X
+{
+    constexpr int test() const {return 3;}
+    int test() {return 4;}
+};
+
+#endif  // _LIBCPP_STD_VER > 11
+
+int main()
+{
+#if _LIBCPP_STD_VER > 11
+    {
+        constexpr optional<X> opt;
+        static_assert(opt.value().test() == 3, "");
+    }
+#else
+#error
+#endif  // _LIBCPP_STD_VER > 11
+}