Here you can find the source of memcmp(byte a[], int a_off, byte b[], int b_off, int len)
public static int memcmp(byte a[], int a_off, byte b[], int b_off, int len)
//package com.java2s; /* Util.java -- utility functions This file is part of the LZO real-time data compression library. Copyright (C) 1999 Markus Franz Xaver Johannes Oberhumer Copyright (C) 1998 Markus Franz Xaver Johannes Oberhumer The LZO 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 2 of the License, or (at your option) any later version. The LZO 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 the LZO library; see the file COPYING. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. Markus F.X.J. Oberhumer/*from w ww . j a v a 2 s . co m*/ <markus.oberhumer@jk.uni-linz.ac.at> http://wildsau.idv.uni-linz.ac.at/mfx/lzo.html */ public class Main { public static int memcmp(byte a[], int a_off, byte b[], int b_off, int len) { for (; len-- > 0; a_off++, b_off++) if (a[a_off] != b[b_off]) return (a[a_off] & 0xff) - (b[b_off] & 0xff); return 0; } public static int memcmp(byte a[], byte b[], int len) { return memcmp(a, 0, b, 0, len); } }