Lidgren.Network.NetBigInteger.LastNBits C# (CSharp) Метод

        private int[] LastNBits(
			int n)
        {
            if (n < 1)
                return ZeroMagnitude;

            int numWords = (n + BitsPerInt - 1) / BitsPerInt;
            numWords = System.Math.Min(numWords, m_magnitude.Length);
            int[] result = new int[numWords];

            Array.Copy(m_magnitude, m_magnitude.Length - numWords, result, 0, numWords);

            int hiBits = n % 32;
            if (hiBits != 0)
            {
                result[0] &= ~(-1 << hiBits);
            }

            return result;
        }