--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/src/share/vm/metaprogramming/integralConstant.hpp	Tue Jul 11 12:00:48 2017 +0200
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#ifndef SHARE_VM_METAPROGRAMMING_INTEGRALCONSTANT_HPP
+#define SHARE_VM_METAPROGRAMMING_INTEGRALCONSTANT_HPP
+
+#include "memory/allocation.hpp"
+
+// An Integral Constant is a class providing a compile-time value of an
+// integral type.  An Integral Constant is also a nullary metafunction,
+// returning itself.  An integral constant object is implicitly
+// convertible to the associated value.
+//
+// A type n is a model of Integral Constant if it meets the following
+// requirements:
+//
+// n::ValueType                : The integral type of n::value
+// n::value                    : An integral constant expression
+// n::type                     : IsSame<n::type, n>::value is true
+// n::value_type const c = n() : c == n::value
+
+// A model of the Integer Constant concept.
+// T is an integral type, and is the value_type.
+// v is an integral constant, and is the value.
+template<typename T, T v>
+struct IntegralConstant : AllStatic {
+  typedef T value_type;
+  static const value_type value = v;
+  typedef IntegralConstant<T, v> type;
+  operator value_type() { return value; }
+};
+
+// A bool valued IntegralConstant whose value is true.
+typedef IntegralConstant<bool, true> TrueType;
+
+// A bool valued IntegralConstant whose value is false.
+typedef IntegralConstant<bool, false> FalseType;
+
+#endif // SHARE_VM_METAPROGRAMMING_INTEGRALCONSTANT_HPP