System.Text.EncodingNLS.GetString C# (CSharp) Method

        public unsafe override String GetString(byte[] bytes, int index, int count)
        {
            // Validate Parameters
            if (bytes == null)
                throw new ArgumentNullException(nameof(bytes), SR.ArgumentNull_Array);

            if (index < 0 || count < 0)
                throw new ArgumentOutOfRangeException((index < 0 ? nameof(index): nameof(count)), SR.ArgumentOutOfRange_NeedNonNegNum);

            if (bytes.Length - index < count)
                throw new ArgumentOutOfRangeException(nameof(bytes), SR.ArgumentOutOfRange_IndexCountBuffer);
            Contract.EndContractBlock();

            // Avoid problems with empty input buffer
            if (bytes.Length == 0) return String.Empty;

            fixed (byte* pBytes = bytes)
                return GetString(pBytes + index, count);
        }