content: /*
  * Copyright (c) 1997 - 2016
  * Actelion Pharmaceuticals Ltd.
  * Gewerbestrasse 16
  * CH-4123 Allschwil, Switzerland
  *
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  * 1. Redistributions of source code must retain the above copyright notice, this
  *    list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. Neither the name of the the copyright holder nor the
  *    names of its contributors may be used to endorse or promote products
  *    derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
  
  package com.actelion.research.util;
  
  import java.io.*;
  
  
  public class LittleEndianDataInputStream implements DataInput
  {
  	public LittleEndianDataInputStream(InputStream in)
  	{
  		this.in = in;
  		this.d = new DataInputStream(in);
  		w = new byte[8];
  	}
  
  	public final short readShort() throws IOException
  	{
  		d.readFully(w, 0, 2);
  
  		return (short)(((w[1] & 0xff) << 8) | (w[0] & 0xff));
  	}
  
  	public final int readUnsignedShort() throws IOException
  	{
  		d.readFully(w, 0, 2);
  
  		return (((w[1] & 0xff) << 8) | (w[0] & 0xff));
  	}
  
  	public final char readChar() throws IOException
  	{
  		d.readFully(w, 0, 2);
  
  		return (char)(((w[1] & 0xff) << 8) | (w[0] & 0xff));
  	}
  
  	public final int readInt() throws IOException
  	{
  		d.readFully(w, 0, 4);
  
  		return ((w[3]) << 24) | ((w[2] & 0xff) << 16) | ((w[1] & 0xff) << 8) | (w[0] & 0xff);
  	}
  
  	public final long readLong() throws IOException
  	{
  		d.readFully(w, 0, 8);
  
  		return ((long)(w[7]) << 56) /* long cast needed or shift done modulo 32 */
  		| ((long)(w[6] & 0xff) << 48) | ((long)(w[5] & 0xff) << 40) | ((long)(w[4] & 0xff) << 32)
  		| ((long)(w[3] & 0xff) << 24) | ((long)(w[2] & 0xff) << 16) | ((long)(w[1] & 0xff) << 8)
  		| (long)(w[0] & 0xff);
  	}
  
  
  	public final float readFloat() throws IOException
  	{
  		return Float.intBitsToFloat(readInt());
  	}
  
  	public final double readDouble() throws IOException
  	{
  		return Double.longBitsToDouble(readLong());
  	}
  
  
  	public final int read(byte[] b, int off, int len) throws IOException
  	{
  		return in.read(b, off, len);
  	}
  
  	public final void readFully(byte[] b) throws IOException
  	{
  		d.readFully(b, 0, b.length);
  	}
  
  	public final void readFully(byte[] b, int off, int len)
  		throws IOException
  	{
          if (len < 0)
              System.err.println("Error: Negative number of bytes to read");
  		else
              d.readFully(b, off, len);
  	}
  
  
  	public final int skipBytes(int n) throws IOException
  	{
  		return d.skipBytes(n);
  	}
  
  	public final boolean readBoolean() throws IOException
  	{
  		return d.readBoolean();
  	}
  
  	public final byte readByte() throws IOException
  	{
  		return d.readByte();
  	}
  
  	public final int readUnsignedByte() throws IOException
  	{
  		return d.readUnsignedByte();
  	}
  
  	@Deprecated
  	public final String readLine() throws IOException
  	{
  		return d.readLine();
  	}
  
  	public final String readUTF() throws IOException
  	{
  		return d.readUTF();
  	}
  
  	public static String readUTF(DataInput in) throws IOException
  	{
  		return DataInputStream.readUTF(in);
  	}
  
  	public final void close() throws IOException
  	{
  		d.close();
  	}
  
  	protected DataInputStream d; // to get at high level readFully methods of DataInputStream
  	protected InputStream in; // to get at the low-level read methods of InputStream
  	byte[] w; // work array for buffering input
  
  }
  