C# Bitwise Operators

Either data or code is saved in computer in binary format. The processor of any machine is running by the machine code or binary code. C# Bitwise Operators process the data bit by bit. Comparing with the boolean value true or false, we're using 0 and 1 to stand for each bit in binary. For example, sbyte stands for 8-bit signed integer type. 13 sbyte type is saved in memory as 00001101 in binary. Then -13 is 10001101. The most left bit is sign bit. 0 means positive and 1 means negative. When bitwise operator is used, the result is based on the calculation bit by bit. In bit level, the truth table is shown below.

Then bitwise operators can be shown below and assume A=1(00000001) and B=2(00000010) in the examples.

using System;

namespace TestLogicalOperators
{
    class Program
    {
        static void Main(string[] args)
        {
            sbyte a, b;
            a = 1;
            b = 2;
            Console.WriteLine("a={0}, b={1}", a, b);
            Console.WriteLine("~a={0}, ~b={1}", ~a, ~b);
            Console.WriteLine("a&b={0}", a&b);
            Console.WriteLine("a|b={0}", a|b);
            Console.WriteLine("a^b={0}", a^b);
            Console.WriteLine("a<<1={0}", a<<1);
            Console.WriteLine("b>>1={0}", b>>1);
            Console.Read();
        }
    }
}

a=1, b=2
~a=-2, ~b=-3
a&b=0
a|b=3
a^b=3
a<<1=2
b>>1=1