using System;

using System.Collections.Generic;

​

​

public class Program

{

    public static void Main(string[] args)

    {

        const string THING1 = "THING1";

        const string THING2 = "THING2";

        const string THING3 = "THING3";

        const string THING4 = "THING4";

​

        Dictionary<string, int> atPosition = new Dictionary<string, int>()

        {

            { THING1,  0x1 },

            { THING2,  0x2 },

            { THING3, 0x4 },

            { THING4, 0x8 },

        };

​

        int results = 0; // 0b0000

​

        setBit(ref results, atPosition[THING1], true); //0b0001

        setBit(ref results, atPosition[THING2], true); //0b0011

        setBit(ref results, atPosition[THING1], false); //0b0010

        setBit(ref results, atPosition[THING3], true); //0b0110

        setBit(ref results, atPosition[THING4], true); //0b1110

        setBit(ref results, atPosition[THING3], false); //0b1010

​

        // Write the values of each bit to the Console

        foreach(var bit in atPosition)

            Console.WriteLine("{0} is : {1}", bit.Key, getBit(results, atPosition[bit.Key]));   

    }

    public static bool getBit(int result, int position)

    {

        return (result & position) != 0;

    }

​

    public static void setBit(ref int result, int position, bool value)

    {

        if (value)

            result |= position;

        else

            result &= ~position;

    }

​

}

​

​