+// { dg-options "-std=gnu++0x" }
+// { dg-do compile }
+
+// Copyright (C) 2008, 2009 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 <cstdatomic>
+
+namespace gnu
+{
+#ifndef ATOMIC_INTEGRAL_LOCK_FREE
+# error "ATOMIC_INTEGRAL_LOCK_FREE must be a macro"
+#else
+# if ATOMIC_INTEGRAL_LOCK_FREE != 0 \
+ && ATOMIC_INTEGRAL_LOCK_FREE != 1 && ATOMIC_INTEGRAL_LOCK_FREE != 2
+# error "ATOMIC_INTEGRAL_LOCK_FREE must be 0, 1, or 2"
+# endif
+#endif
+
+#ifndef ATOMIC_ADDRESS_LOCK_FREE
+# error "ATOMIC_ADDRESS_LOCK_FREE must be a macro"
+# if ATOMIC_INTEGRAL_LOCK_FREE != 0 \
+ && ATOMIC_INTEGRAL_LOCK_FREE != 1 && ATOMIC_INTEGRAL_LOCK_FREE != 2
+# error "ATOMIC_INTEGRAL_LOCK_FREE must be 0, 1, or 2"
+# endif
+#endif
+
+#ifndef ATOMIC_FLAG_INIT
+ #error "ATOMIC_FLAG_INIT_must_be_a_macro"
+#endif
+}