Compute the size of an object. - CSharp System

CSharp examples for System:Object

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Description

Compute the size of an object.

Demo Code

/*/*  w  w w  . j  a  v  a 2  s.c  om*/
    * Copyright: Thomas McGlynn 1997-2007.
    * 
    * The CSharpFITS package is a C# port of Tom McGlynn's
    * nom.tam.fits Java package, initially ported by  Samuel Carliles
    *
    * Copyright: 2007 Virtual Observatory - India.     
    *
    * Use is subject to license terms
    */
using System.Collections;
using System;

public class Main{
        /// <summary>Compute the size of an object.  Note that this only handles
        /// arrays or scalars of the primitive objects and Strings.  It
        /// returns 0 for any object array element it does not understand.</summary>
        /// <param name="o">The object whose size is desired.</param>
        public static int ComputeSize(Object o)
        {
            int result = 0;

            if (o != null)
            {
                Type t = o.GetType();
                if (t.IsArray)
                {
                    int size = 0;

                    for (IEnumerator i = ((Array)o).GetEnumerator(); i.MoveNext(); )
                    {
                        size += ComputeSize(i.Current);
                    }

                    //return size;
                    result = size;
                }
                else if (t == typeof(String))
                {
                    //return ((String)o).Length * (int)sizes[typeof(char)];
                    result = ((String)o).Length * (int)sizes[typeof(char)];
                }
                else if (t == typeof(Troolean))
                {
                    result = 1;
                }
                else if (t.IsPrimitive)
                {
                    //return (int)sizes[t];
                    result = (int)sizes[t];
                }
                else
                {
                    //return 0;
                    result = 0;
                }
            }

            return result;
        }
}

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