System.Net.Internals.SocketAddress.this C# (CSharp) Method

        public byte this[int offset]
        {
            get
            {
                if (offset < 0 || offset >= Size)
                {
                    throw new IndexOutOfRangeException();
                }
                return Buffer[offset];
            }
            set
            {
                if (offset < 0 || offset >= Size)
                {
                    throw new IndexOutOfRangeException();
                }
                if (Buffer[offset] != value)
                {
                    _changed = true;
                }
                Buffer[offset] = value;
            }
        }