public ClusteredList <T> GetRange(int index, int count)
{
if (index < 0)
{
ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.index, ExceptionResource.ArgumentOutOfRange_NeedNonNegNum);
}
if (count < 0)
{
ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.count, ExceptionResource.ArgumentOutOfRange_NeedNonNegNum);
}
if (_size - index < count)
{
ThrowHelper.ThrowArgumentException(ExceptionResource.Argument_InvalidOffLen);
}
#if DEBUG
Contract.Ensures(Contract.Result <ClusteredList <T> >() != null);
Contract.EndContractBlock();
#endif
ClusteredList <T> list = new ClusteredList <T>(count);
ClusteredArray <T> .Copy(_items, index, list._items, 0, count);
list._size = count;
return(list);
}
// Removes a range of elements from this list.
//
public void RemoveRange(int index, int count)
{
if (index < 0)
{
ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.index, ExceptionResource.ArgumentOutOfRange_NeedNonNegNum);
}
if (count < 0)
{
ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.count, ExceptionResource.ArgumentOutOfRange_NeedNonNegNum);
}
if (_size - index < count)
{
ThrowHelper.ThrowArgumentException(ExceptionResource.Argument_InvalidOffLen);
}
#if DEBUG
Contract.EndContractBlock();
#endif
if (count > 0)
{
int i = _size;
_size -= count;
if (index < _size)
{
ClusteredArray <T> .Copy(_items, index + count, _items, index, _size - index);
}
ClusteredArray <T> .Clear(_items, _size, count);
_version++;
}
}
public object Clone()
{
ClusteredArray <T> newarray = new ClusteredArray <T>(_length);
ClusteredArray <T> .Copy(this, 0, newarray, 0, _length);
return(newarray);
}
// Inserts the elements of the given collection at a given index. If
// required, the capacity of the list is increased to twice the previous
// capacity or the new size, whichever is larger. Ranges may be added
// to the end of the list by setting index to the List's size.
//
public void InsertRange(int index, IEnumerable <T> collection)
{
if (collection == null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.collection);
}
if ((uint)index > (uint)_size)
{
ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.index, ExceptionResource.ArgumentOutOfRange_Index);
}
#if DEBUG
Contract.EndContractBlock();
#endif
ICollection <T> c = collection as ICollection <T>;
if (c != null)
{
int count = c.Count;
if (count > 0)
{
EnsureCapacity(_size + count);
if (index < _size)
{
ClusteredArray <T> .Copy(_items, index, _items, index + count, _size - index);
}
// If we're inserting a List into itself, we want to be able to deal with that.
if (this == c)
{
// Copy first part of _items to insert location
ClusteredArray <T> .Copy(_items, 0, _items, index, index);
// Copy last part of _items back to inserted location
ClusteredArray <T> .Copy(_items, index + count, _items, index * 2, _size - index);
}
else
{
T[] itemsToInsert = new T[count];
c.CopyTo(itemsToInsert, 0);
_items.CopyFrom(itemsToInsert, 0, index, count);
}
_size += count;
}
}
else
{
using (IEnumerator <T> en = collection.GetEnumerator())
{
while (en.MoveNext())
{
Insert(index++, en.Current);
}
}
}
_version++;
}
// Removes the element at the given index. The size of the list is
// decreased by one.
//
public void RemoveAt(int index)
{
#if DEBUG
Contract.EndContractBlock();
#endif
_size--;
if (index < _size)
{
ClusteredArray <T> .Copy(_items, index + 1, _items, index, _size - index);
}
_items[_size] = default(T);
_version++;
}
// Inserts an element into this list at a given index. The size of the list
// is increased by one. If required, the capacity of the list is doubled
// before inserting the new element.
//
public void Insert(int index, T item)
{
// Note that insertions at the end are legal.
if ((uint)index > (uint)_size)
{
ThrowHelper.ThrowArgumentOutOfRangeException(ExceptionArgument.index, ExceptionResource.ArgumentOutOfRange_ListInsert);
}
#if DEBUG
Contract.EndContractBlock();
#endif
if (_size == _items.Length)
{
EnsureCapacity(_size + 1);
}
if (index < _size)
{
ClusteredArray <T> .Copy(_items, index, _items, index + 1, _size - index);
}
_items[index] = item;
_size++;
_version++;
}
// PRIVATE Grows or shrinks the buffer to hold capacity objects. Capacity
// must be >= _size.
private void SetCapacity(int capacity)
{
ClusteredArray <T> newarray = new ClusteredArray <T>(capacity);
if (_size > 0)
{
if (_head < _tail)
{
ClusteredArray <T> .Copy(_array, _head, newarray, 0, _size);
}
else
{
ClusteredArray <T> .Copy(_array, _head, newarray, 0, _array.Length - _head);
ClusteredArray <T> .Copy(_array, 0, newarray, _array.Length - _head, _tail);
}
}
_array = newarray;
_head = 0;
_tail = (_size == capacity) ? 0 : _size;
_version++;
}
