Пример #1
0
        /// <summary>
        /// Truncate the string blob to the specified last index.
        /// </summary>
        /// <param name="lastIndex">Index of last string to retain.</param>
        public void Truncate(int lastIndex)
        {
            if (_index is null)
            {
                Refresh();
            }
            var l = _index[lastIndex] + get_LengthAt(lastIndex) * 2;

            if (_lpwstr)
            {
                l = l + 2;
            }
            else
            {
                l = l + SizeDescriptorLength;
            }
            Array.Resize(ref _index, lastIndex + 1);
            SafePtr.Length = l.ToInt64() - SafePtr.handle.ToInt64();
            _count         = _index.Length;
            if (!_lpwstr)
            {
                switch (SizeDescriptorLength)
                {
                case 2:
                {
                    _mem.set_UShortAt(0L, (ushort)_count);
                    break;
                }

                case 4:
                {
                    _mem.set_UIntegerAt(0L, (uint)_count);
                    break;
                }

                case 8:
                {
                    _mem.set_ULongAt(0L, (ulong)_count);
                    break;
                }
                }
            }
        }