/// <summary>
/// Adds the elements of the specified collection to the end of <see cref="BigArray{T}"/>.
/// </summary>
/// <param name="collection">The collection whose elements should be added to the end of the <see cref="BigArray{T}"/>.
/// The collection it self can't benull, but it can contain elements that are null, if type T is a reference type. </param>
public void AddRange(ICollection <T> collection)
{
if (collection == null)
{
throw new ArgumentNullException("collection");
}
if (collection.Count == 0)
{
return;
}
_blockCollection.AddFirstBlockIfThereIsNeeded();
int lastBlockIndex = _blockCollection.Count - 1;
var lastBlock = _blockCollection[lastBlockIndex];
//Transfer data to the last block while it is possible
var sizeOfTransferToLastBlock = 0;
var emptySize = _balancer.GetMaxBlockSize(lastBlockIndex) - lastBlock.Count;
if (emptySize != 0)
{
sizeOfTransferToLastBlock = Math.Min(emptySize, collection.Count);
var enumerator = collection.GetEnumerator();
for (int i = 0; i < sizeOfTransferToLastBlock; i++)
{
enumerator.MoveNext();
lastBlock.Add(enumerator.Current);
}
}
//Transfer other data as new blocks
if (sizeOfTransferToLastBlock != collection.Count)
{
_blockCollection.Add(collection, sizeOfTransferToLastBlock);
}
Count += collection.Count;
_arrayMap.DataChanged(lastBlockIndex);
}