1 files changed, 37 insertions, 0 deletions
diff --git a/libstdc++-v3/testsuite/20_util/duration_cast/constexpr.cc b/libstdc++-v3/testsuite/20_util/duration_cast/constexpr.cc
new file mode 100644
index 000000000..b8a89aee9
--- /dev/null
+++ b/libstdc++-v3/testsuite/20_util/duration_cast/constexpr.cc
@@ -0,0 +1,37 @@
+// { dg-do compile }
+// { dg-options "-std=gnu++0x" }
+
+// Copyright (C) 2010 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+#include <chrono>
+#include <testsuite_common_types.h>
+
+int main()
+{
+  using namespace std::chrono;
+
+  // non-constexpr
+  minutes mn1(6000);
+  hours hr1 __attribute__((unused)) = duration_cast<hours>(mn1);
+
+  // constexpr
+  constexpr minutes mn2(6000);
+  constexpr hours hr2 __attribute__((unused)) = duration_cast<hours>(mn2);
+
+  return 0;
+}