using System;

using System.Runtime.InteropServices;

​

public class Program

{

    public static void Main()

    {

        bool trueOrFalse = false;

        int number = 0;

        Int32 number32 = 0;     

        Int64 number64 = 0;

        long numberLong = 0;

        IntPtr intPtr = IntPtr.Zero;

​

        Console.WriteLine(Marshal.SizeOf(trueOrFalse));

        Console.WriteLine(sizeof(bool));

        Console.WriteLine(Marshal.SizeOf(number));

        Console.WriteLine(sizeof(int));

        Console.WriteLine(Marshal.SizeOf(number32));

        Console.WriteLine(sizeof(Int32));

        Console.WriteLine(Marshal.SizeOf(number64));

        Console.WriteLine(sizeof(Int64));

        Console.WriteLine(Marshal.SizeOf(numberLong));

        Console.WriteLine(sizeof(long));

        Console.WriteLine(Marshal.SizeOf(intPtr));

    }

}