using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;

/// @author  Vesa Lappalainen
/// @version 06.10.2012
/// <summary>
/// Ohjelmassa vertaillaan tnt- ja double -tyyppien.
/// </summary>
public class IntVsDouble
{
    /// <summary>
    /// Otetaan aikaa summaamisesta
    /// </summary>
    /// <param name="args">ei käytössä</param>
    public static void Main(string[] args)
    {
        // Lasketaan intillä
        const int MONTAKO = 100000000; // Montako kertaa merkkijonoja yhdistellään
        Stopwatch sw = Stopwatch.StartNew();

        int isumma = 0;
        for (int i = 0; i < MONTAKO; i++)
        {
            isumma = isumma + 3*i+5;
        } 

        sw.Stop();
        double milliseconds = sw.Elapsed.TotalMilliseconds;
        System.Console.WriteLine("Int           {0,7:##0.000} s {1}", milliseconds / 1000,isumma);
        sw.Reset();

        // long
        sw.Start();
        long lsumma = 0;
        for (long i = 0; i < MONTAKO; i++)
        {
            lsumma += 3L * i + 5L;
        }

        sw.Stop();
        milliseconds = sw.Elapsed.TotalMilliseconds;
        System.Console.WriteLine("Long          {0,7:##0.000} s {1}", milliseconds / 1000, lsumma);
        sw.Reset();

        // float
        sw.Start();
        double fsumma = 0;
        for (int i = 0; i < MONTAKO; i++) // indeksi int koska float ei mahdu
        {
            fsumma += 3.0f * i + 5.0f;
        }

        sw.Stop();
        milliseconds = sw.Elapsed.TotalMilliseconds;
        System.Console.WriteLine("Float         {0,7:##0.000} s {1}", milliseconds / 1000, fsumma);
        sw.Reset();

        // double
        sw.Start();
        double dsumma = 0;
        for (double i = 0; i < MONTAKO; i++)
        {
            dsumma += 3.0*i+5.0;
        } 

        sw.Stop();
        milliseconds = sw.Elapsed.TotalMilliseconds;
        System.Console.WriteLine("Double        {0,7:##0.000} s {1}", milliseconds / 1000,dsumma);
        sw.Reset();

        // decimal
        sw.Start();
        decimal dssumma = 0;
        for (decimal i = 0; i < MONTAKO; i++)
        {
            dssumma += (decimal)3 * i + (decimal)5;
        }

        sw.Stop();
        milliseconds = sw.Elapsed.TotalMilliseconds;
        System.Console.WriteLine("Decimal       {0,7:##0.000} s {1}", milliseconds / 1000,dssumma);

        System.Console.ReadKey();
    }
}