package org.paneris.bibliomania.fti;

 import java.io.IOException;

 import java.io.OutputStream;

 public class ThreePacker extends Packer {

   public static final ThreePacker it = new ThreePacker();

   public ThreePacker() {

     super(3, 0xFFFFFF);

   }

   public static int number_(byte[] bytes, int off) {

     return uint(bytes[off + 0]) << 16 | uint(bytes[off + 1]) << 8 |

            uint(bytes[off + 2]);

   }

   public int number(byte[] bytes, int off) {

     return number_(bytes, off);

   }

   public Packer bigger() {

     return FourPacker.it;

   }

   public static void write_(OutputStream os, int number) throws IOException {

     os.write(number >> 16);

     os.write(number >>  8);

     os.write(number      );

   }

   public void write(OutputStream os, int number) throws IOException {

     write_(os, number);

   }

   public static void set_(byte[] bytes, int offset, int number) {

     bytes[offset    ] = (byte)(number >> 16);

     bytes[offset + 1] = (byte)(number >>  8);

     bytes[offset + 2] = (byte) number       ;

   }

   public void set(byte[] bytes, int offset, int number) {

     set_(bytes, offset, number);

   }

 }