--- /dev/null 2013-01-18 16:17:08.886776012 -0800 +++ new/test/sun/util/calendar/zi/Checksum.java 2013-02-06 22:33:38.000000000 -0800 @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2000, 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * 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. + */ + +import java.util.zip.CRC32; + +/** + * Checksum provides methods for calculating a CRC32 value for a + * transitions table. + * + * @since 1.4 + */ +public class Checksum extends CRC32 +{ + /** + * Updates the CRC32 value from each byte of the given int + * value. The bytes are used in the big endian order. + * @param val the int value + */ + public void update(int val) { + byte[] b = new byte[4]; + b[0] = (byte)((val >>> 24) & 0xff); + b[1] = (byte)((val >>> 16) & 0xff); + b[2] = (byte)((val >>> 8) & 0xff); + b[3] = (byte)(val & 0xff); + update(b); + } + + /** + * Updates the CRC32 value from each byte of the given long + * value. The bytes are used in the big endian order. + * @param val the long value + */ + void update(long val) { + byte[] b = new byte[8]; + b[0] = (byte)((val >>> 56) & 0xff); + b[1] = (byte)((val >>> 48) & 0xff); + b[2] = (byte)((val >>> 40) & 0xff); + b[3] = (byte)((val >>> 32) & 0xff); + b[4] = (byte)((val >>> 24) & 0xff); + b[5] = (byte)((val >>> 16) & 0xff); + b[6] = (byte)((val >>> 8) & 0xff); + b[7] = (byte)(val & 0xff); + update(b); + } +}