1 files changed, 53 insertions, 0 deletions
diff --git a/libcxx/test/std/utilities/utility/forward/forward.fail.cpp b/libcxx/test/std/utilities/utility/forward/forward.fail.cpp
new file mode 100644
index 00000000000..a3bb890482e
--- /dev/null
+++ b/libcxx/test/std/utilities/utility/forward/forward.fail.cpp
@@ -0,0 +1,53 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// test forward
+
+#include <utility>
+
+#include "test_macros.h"
+
+struct A
+{
+};
+
+A source() {return A();}
+const A csource() {return A();}
+
+int main()
+{
+#if TEST_STD_VER >= 11
+    {
+        std::forward<A&>(source());  // expected-note {{requested here}}
+        // expected-error@type_traits:* 1 {{static_assert failed "can not forward an rvalue as an lvalue"}}
+    }
+#else
+    {
+        std::forward<A&>(source()); // expected-error {{no matching function for call to 'forward'}}
+    }
+#endif
+    {
+        const A ca = A();
+        std::forward<A&>(ca); // expected-error {{no matching function for call to 'forward'}}
+    }
+    {
+        std::forward<A&>(csource());  // expected-error {{no matching function for call to 'forward'}}
+    }
+    {
+        const A ca = A();
+        std::forward<A>(ca); // expected-error {{no matching function for call to 'forward'}}
+    }
+    {
+        std::forward<A>(csource()); // expected-error {{no matching function for call to 'forward'}}
+    }
+    {
+        A a;
+        std::forward(a); // expected-error {{no matching function for call to 'forward'}}
+    }
+}