1 files changed, 24 insertions, 0 deletions
diff --git a/libcxx/test/std/utilities/function.objects/unord.hash/enum.fail.cpp b/libcxx/test/std/utilities/function.objects/unord.hash/enum.fail.cpp
new file mode 100644
index 00000000000..9e44bfb7781
--- /dev/null
+++ b/libcxx/test/std/utilities/function.objects/unord.hash/enum.fail.cpp
@@ -0,0 +1,24 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <functional>
+
+//  Hashing a struct w/o a defined hash should fail.
+
+#include <functional>
+#include <cassert>
+#include <type_traits>
+
+struct X {};
+
+int main()
+{
+    X x;
+    size_t h = std::hash<X>{} ( x );
+}