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46 lines
1.7 KiB
Java
46 lines
1.7 KiB
Java
/**
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* Copyright (C) 2011 Whisper Systems
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.thoughtcrime.securesms.util;
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public class Combiner {
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public static byte[] combine(byte[] a, byte[] b) {
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byte[] combined = new byte[a.length + b.length];
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System.arraycopy(a, 0, combined, 0, a.length);
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System.arraycopy(b, 0, combined, a.length, b.length);
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return combined;
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}
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public static byte[] combine(byte[] a, byte[] b, byte[] c) {
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byte[] combined = new byte[a.length + b.length + c.length];
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System.arraycopy(a, 0, combined, 0, a.length);
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System.arraycopy(b, 0, combined, a.length, b.length);
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System.arraycopy(c, 0, combined, a.length + b.length, c.length);
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return combined;
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}
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public static byte[] combine(byte[] a, byte[] b, byte[] c, byte[] d) {
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byte[] combined = new byte[a.length + b.length + c.length + d.length];
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System.arraycopy(a, 0, combined, 0, a.length);
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System.arraycopy(b, 0, combined, a.length, b.length);
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System.arraycopy(c, 0, combined, a.length + b.length, c.length);
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System.arraycopy(d, 0, combined, a.length + b.length + c.length, d.length);
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return combined;
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}
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}
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