Java Byte Array Compare memcmp(byte[] a, int a_offset, byte[] b, int b_offset, int length)

Description

Compare the contents of one array of bytes to another.

License

Open Source License

Parameter

Parameter	Description
a	the first array
a_offset	the start offset in <code>a</code>
b	the second array
b_offset	the start offset in <code>b</code>
length	the number of <code>byte</code>s to compare.

Return

DOCUMENT ME!

Declaration

public static boolean memcmp(byte[] a, int a_offset, byte[] b, int b_offset, int length) 

Method Source Code

//package com.java2s;
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
 *
 * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,USA.
 *
 * For more information, contact://w  ww . j a v  a  2s. co m
 *
 *  Generalitat Valenciana
 *   Conselleria d'Infraestructures i Transport
 *   Av. Blasco Ib??ez, 50
 *   46010 VALENCIA
 *   SPAIN
 *
 *      +34 963862235
 *   gvsig@gva.es
 *      www.gvsig.gva.es
 *
 *    or
 *
 *   IVER T.I. S.A
 *   Salamanca 50
 *   46005 Valencia
 *   Spain
 *
 *   +34 963163400
 *   dac@iver.es
 */

public class Main {
    /**
     * Compare the contents of one array of <code>bytes</code> to another.
     *
     * @param a the first array
     * @param a_offset the start offset in <code>a</code>
     * @param b the second array
     * @param b_offset the start offset in <code>b</code>
     * @param length the number of <code>byte</code>s to compare.
     *
     * @return DOCUMENT ME!
     */
    public static boolean memcmp(byte[] a, int a_offset, byte[] b, int b_offset, int length) {
        if ((a == null) && (b == null)) {
            return true;
        }

        if ((a == null) || (b == null)) {
            return false;
        }

        for (int i = 0; i < length; ++i, ++a_offset, ++b_offset)
            if (a[a_offset] != b[b_offset]) {
                return false;
            }

        return true;
    }
}

Related

1. bytesCompare(byte[] a, byte[] b)
2. bytesCompare(byte[] a, byte[] b)
3. bytesCompare(byte[] bytes1, byte[] bytes2)
4. memcmp(byte a[], int a_off, byte b[], int b_off, int len)
5. memcmp(byte[] a, byte[] b)
6. memcmp(byte[] a, int aoff, int alen, byte[] b, int boff, int blen)
7. memcmp(byte[] bytes, byte[] bytes2, int nbElem)
8. memcmp(byte[] s1, int s1Size, int s1offset, byte[] s2, int s2Size, int s2offset)
9. memcmp(final byte[] a, final byte[] b, int length)