1 files changed, 48 insertions, 0 deletions
diff --git a/test/std/experimental/utilities/meta/meta.detect/detected_t.pass.cpp b/test/std/experimental/utilities/meta/meta.detect/detected_t.pass.cpp
new file mode 100644
index 0000000000000..136fb068be3c2
--- /dev/null
+++ b/test/std/experimental/utilities/meta/meta.detect/detected_t.pass.cpp
@@ -0,0 +1,48 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// UNSUPPORTED: c++98, c++03, c++11
+// <experimental/type_traits>
+
+#include <experimental/type_traits>
+#include <string>
+
+#include "test_macros.h"
+
+namespace ex = std::experimental;
+
+template <typename T>
+  using callFoo = decltype(std::declval<T&>().Foo());
+  
+struct yesFoo {
+    int Foo() { return 0; }
+};
+
+struct noFoo {
+};
+
+struct wrongFoo {
+    std::string Foo() { return ""; }
+};
+
+struct convertibleFoo {
+    long Foo() { return 0; }
+};
+
+
+template <typename T, typename Res>
+void test() {
+    static_assert( std::is_same<Res, typename ex::detected_t<callFoo, T>>::value, "" );
+}
+
+int main () {
+    test<yesFoo, int>();
+    test<noFoo, ex::nonesuch>();  // lookup failure returns nonesuch
+    test<wrongFoo, std::string>();
+}