code: //==============================================================================
  //	
  //	Copyright (c) 2002-
  //	Authors:
  //	* Vojtech Forejt <vojtech.forejt@cs.ox.ac.uk> (University of Oxford)
  //	
  //------------------------------------------------------------------------------
  //	
  //	This file is part of PRISM.
  //	
  //	PRISM 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.
  //	
  //	PRISM 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 PRISM; if not, write to the Free Software Foundation,
  //	Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  //	
  //==============================================================================
  
  package prism;
  
  /**
   * Class to store {@code int} elements in an array.
   */
  public class NativeIntArray 
  {
  	private static native long NIA_CreateArray(int size);
  	private static native void NIA_DeleteArray(long ptr);
  	private static native int NIA_Get(long ptr, int index);
  	private static native void NIA_Set(long ptr, int index, int value);
  	private static native void NIA_SetAll(long ptr, int indexFrom, int count, int value);
  	
  	static
  	{
  		try {
  			System.loadLibrary("prism");
  		}
  		catch (UnsatisfiedLinkError e) {
  			System.out.println(e);
  			System.exit(1);
  		}
  	}
  	
  	private long ptr;
  	private int size;
  	
  	/**
  	 * Creates a new native array of size s, and keeps it wrapped in this object.
  	 * Note that the elements of the array may not be initialised to 0. Use
  	 * {@link #setAllTo(int)} to initialise the array.
  	 * @param size The size of the array to be created.
  	 */
  	public NativeIntArray(int size)
  	{
  		this.size = size;
  		this.ptr = NIA_CreateArray(size);
  	}
  	
  	/**
  	 * Returns the pointer to the wrapped native array.
  	 * @return Pointer
  	 */
  	public long getPtr()
  	{
  		return ptr;
  	}
  	
  	/**
  	 * Deletes the native array and frees the memory.
  	 */
  	public void clear()
  	{
  		NIA_DeleteArray(ptr);
  	}
  	
  	/**
  	 * Returns the {@code index}-th element of the aray
  	 * @param index
  	 * @throws IndexOutOfBoundsException If the index is outside of the bounds of the array
  	 */
  	public int get(int index) throws IndexOutOfBoundsException
  	{
  		if (index < 0 || index >= size)
  			throw new IndexOutOfBoundsException();
  		return NIA_Get(ptr, index);
  	}
  	
  	/**
  	 * Sets the {@code index}-th element of the array to {@code val}.
  	 * @param index
  	 * @param value
  	 * @throws IndexOutOfBoundsException If the index is outside of the bounds of the array
  	 */
  	public void set(int index, int value) throws IndexOutOfBoundsException
  	{
  		if (index < 0 || index >= size)
  			throw new IndexOutOfBoundsException();
  		NIA_Set(ptr, index, value);
  	}
  
  	/**
  	 * Sets all elements of the array to {@code value}.
  	 * @param value Value to be set
  	 */
  	public void setAllTo(int value) {
  		NIA_SetAll(ptr, 0, size, value);
  	}
  	
  	/**
  	 * Returns the size of the wrapped array.
  	 */
  	public int size()
  	{
  		return this.size;
  	}
  }
  