--- /dev/null
+/**
+* Copyright (c) 2008 The Board of Trustees of The Leland Stanford Junior
+* University
+*
+* Licensed under the Apache License, Version 2.0 (the "License"); you may
+* not use this file except in compliance with the License. You may obtain
+* a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+* License for the specific language governing permissions and limitations
+* under the License.
+**/
+
+package org.openflow.util;
+
+import java.math.BigInteger;
+
+public class U64 {
+ public static BigInteger f(long i) {
+ return new BigInteger(Long.toBinaryString(i), 2);
+ }
+
+ public static long t(BigInteger l) {
+ return l.longValue();
+ }
+}