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	/*
	* Copyright (c) 2001, 2010, 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.
	*/

	package java.io;

	/**
	* Utility methods for packing/unpacking primitive values in/out of byte arrays
	* using big-endian byte ordering.
	*/
	class Bits {

	/*
	* Methods for unpacking primitive values from byte arrays starting at
	* given offsets.
	*/

	static boolean getBoolean(byte[] b, int off) {
	return b[off] != 0;
	}

	static char getChar(byte[] b, int off) {
	return (char) ((b[off + 1] & 0xFF) +
	(b[off] << 8));
	}

	static short getShort(byte[] b, int off) {
	return (short) ((b[off + 1] & 0xFF) +
	(b[off] << 8));
	}

	static int getInt(byte[] b, int off) {
	return ((b[off + 3] & 0xFF) ) +
	((b[off + 2] & 0xFF) << 8) +
	((b[off + 1] & 0xFF) << 16) +
	((b[off ] ) << 24);
	}

	static float getFloat(byte[] b, int off) {
	return Float.intBitsToFloat(getInt(b, off));
	}

	static long getLong(byte[] b, int off) {
	return ((b[off + 7] & 0xFFL) ) +
	((b[off + 6] & 0xFFL) << 8) +
	((b[off + 5] & 0xFFL) << 16) +
	((b[off + 4] & 0xFFL) << 24) +
	((b[off + 3] & 0xFFL) << 32) +
	((b[off + 2] & 0xFFL) << 40) +
	((b[off + 1] & 0xFFL) << 48) +
	(((long) b[off]) << 56);
	}

	static double getDouble(byte[] b, int off) {
	return Double.longBitsToDouble(getLong(b, off));
	}

	/*
	* Methods for packing primitive values into byte arrays starting at given
	* offsets.
	*/

	static void putBoolean(byte[] b, int off, boolean val) {
	b[off] = (byte) (val ? 1 : 0);
	}

	static void putChar(byte[] b, int off, char val) {
	b[off + 1] = (byte) (val );
	b[off ] = (byte) (val >>> 8);
	}

	static void putShort(byte[] b, int off, short val) {
	b[off + 1] = (byte) (val );
	b[off ] = (byte) (val >>> 8);
	}

	static void putInt(byte[] b, int off, int val) {
	b[off + 3] = (byte) (val );
	b[off + 2] = (byte) (val >>> 8);
	b[off + 1] = (byte) (val >>> 16);
	b[off ] = (byte) (val >>> 24);
	}

	static void putFloat(byte[] b, int off, float val) {
	putInt(b, off, Float.floatToIntBits(val));
	}

	static void putLong(byte[] b, int off, long val) {
	b[off + 7] = (byte) (val );
	b[off + 6] = (byte) (val >>> 8);
	b[off + 5] = (byte) (val >>> 16);
	b[off + 4] = (byte) (val >>> 24);
	b[off + 3] = (byte) (val >>> 32);
	b[off + 2] = (byte) (val >>> 40);
	b[off + 1] = (byte) (val >>> 48);
	b[off ] = (byte) (val >>> 56);
	}

	static void putDouble(byte[] b, int off, double val) {
	putLong(b, off, Double.doubleToLongBits(val));
	}
	}

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