1 files changed, 42 insertions, 0 deletions
diff --git a/test/std/utilities/time/time.duration/time.duration.special/zero.pass.cpp b/test/std/utilities/time/time.duration/time.duration.special/zero.pass.cpp
new file mode 100644
index 0000000000000..18350fe2ff476
--- /dev/null
+++ b/test/std/utilities/time/time.duration/time.duration.special/zero.pass.cpp
@@ -0,0 +1,42 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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.
+//
+//===----------------------------------------------------------------------===//
+
+// <chrono>
+
+// duration
+
+// static constexpr duration zero();
+
+#include <chrono>
+#include <cassert>
+
+#include "../../rep.h"
+
+template <class D>
+void test()
+{
+    {
+    typedef typename D::rep Rep;
+    Rep zero_rep = std::chrono::duration_values<Rep>::zero();
+    assert(D::zero().count() == zero_rep);
+    }
+#ifndef _LIBCPP_HAS_NO_CONSTEXPR
+    {
+    typedef typename D::rep Rep;
+    constexpr Rep zero_rep = std::chrono::duration_values<Rep>::zero();
+    static_assert(D::zero().count() == zero_rep, "");
+    }
+#endif
+}
+
+int main()
+{
+    test<std::chrono::duration<int> >();
+    test<std::chrono::duration<Rep> >();
+}