//
//   This file contains the C# code from Program 5.3 of
//   "Data Structures and Algorithms
//    with Object-Oriented Design Patterns in C#"
//   by Bruno R. Preiss.
//
//   Copyright (c) 2001--2002 by Bruno R. Preiss, P.Eng.  All rights reserved.
//
//   http://www.brpreiss.com/books/opus6/programs/pgm05_03.txt
//
public abstract class ComparableValue : ComparableObject
{
    protected IComparable obj;

    public ComparableValue(IComparable obj)
	{ this.obj = obj; }
    
    public virtual object Object
	{ get { return obj; } }
    
    public override int CompareTo(object arg)
    {
	ComparableValue cv = arg as ComparableValue;
	if (obj.GetType() == cv.obj.GetType())
	    return obj.CompareTo(cv.obj);
	else
	    return obj.GetType().FullName.CompareTo(
		cv.obj.GetType().FullName);
    }

    public override int GetHashCode()
	{ return obj.GetHashCode(); }
    
    public override string ToString()
	{ return obj.ToString(); }
}