using System;

public class Program

{

    public static void Main()

    {

        /* Increment & Decrement operators / Postfix & Prefix

            ++ || -- used with int , unit, long, ulong

            When used with other integral type sbyt, byt, short, ushort, char their values converted to int.

        */

        int x  = 0;

        Console.WriteLine($"Initial x value is {x}");

        Console.WriteLine($"++x value is {++x}");

        Console.WriteLine($"x value is {x}");

        Console.WriteLine($"x++ value is {x++}");

        Console.WriteLine($"x value is {x}");

        int i = 3;

        Console.WriteLine(i);   // output: 3

        Console.WriteLine(i++); // output: 3

        Console.WriteLine(i);   // output: 4

​

        //Unary plus and minus operators

        Console.WriteLine($"+x value is {+x}");

        Console.WriteLine($"-x value is {-x}");

        Console.WriteLine($"-x value is {-x}");

        Console.WriteLine($"x value is {x} after +x value is {+x}");

        Console.WriteLine(+4);     // output: 4

​

        Console.WriteLine(-4);     // output: -4

        Console.WriteLine(-(-4));  // output: 4

​

        Console.WriteLine($"Dealing with unit type ...");

        uint a = 5;

        var b = -a;

        Console.WriteLine($"a uint value is {a}");            // output: 5

        Console.WriteLine(b);            // output: -5

        Console.WriteLine(b.GetType());  // output: System.Int64

​

        Console.WriteLine(-double.NaN);  // output: NaN

    }

}