/// <summary>
/// 将指定集合中的元素插入 <see cref="BitList"/> 的指定索引处。
/// </summary>
/// <param name="index">应在此处插入新元素的从零开始的索引。</param>
/// <param name="collection">一个集合，应将其元素插入到
/// <see cref="BitList"/> 中。</param>
/// <exception cref="ArgumentNullException"><paramref name="collection"/> 为 <c>null</c>。</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> 小于 <c>0</c>。</exception>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="index"/> 大于 <see cref="Count"/>。</exception>
public void InsertRange(int index, IEnumerable <bool> collection)
{
CommonExceptions.CheckArgumentNull(collection, "collection");
if (index < 0)
{
throw CommonExceptions.ArgumentNegative("index", index);
}
if (index > this.count)
{
throw CommonExceptions.ArgumentOutOfRange("index", index);
}
Contract.EndContractBlock();
IList <uint> uintList;
int length = 0;
BitList bList = collection as BitList;
if (bList != null)
{
length = bList.count;
uintList = bList.items;
}
else
{
uintList = new List <uint>();
uint value = 0U;
int j = 0;
foreach (bool b in collection)
{
if (b)
{
value |= 1U << j;
}
j++;
length++;
if (j == UnitSize)
{
uintList.Add(value);
value = 0U;
j = 0;
}
}
if (j > 0)
{
uintList.Add(value);
}
}
this.InsertRange(index, length, uintList);
}
/// <summary>
/// 对当前 <see cref="BitList"/> 中的元素和指定的
/// <see cref="BitList"/> 中的相应元素执行按位“异或”运算。
/// </summary>
/// <param name="list">要对其执行按位“异或”运算的
/// <see cref="BitList"/>。</param>
/// <returns>当前实例，包含对当前 <see cref="BitList"/>
/// 中的元素和指定的 <see cref="BitList"/>
/// 中的相应元素执行按位“异或”运算的结果。</returns>
/// <exception cref="ArgumentNullException"><paramref name="list"/>
/// 为 <c>null</c>。</exception>
/// <exception cref="System.ArgumentException"><paramref name="list"/>
/// 和当前 <see cref="BitList"/> 的元素数不同。</exception>
public BitList Xor(BitList list)
{
CommonExceptions.CheckArgumentNull(list, "list");
if (list.count != this.count)
{
throw CommonExceptions.CollectionCountDiffer("list");
}
Contract.EndContractBlock();
int cnt = this.count >> IndexShift;
for (int i = 0; i <= cnt; i++)
{
this.items[i] ^= list.items[i];
}
return(this);
}
/// <summary>
/// 对当前 <see cref="BitList"/> 中的元素和指定的
/// <see cref="BitList"/> 中的相应元素执行按位“异或”运算。
/// </summary>
/// <param name="list">要对其执行按位“异或”运算的
/// <see cref="BitList"/>。</param>
/// <returns>当前实例，包含对当前 <see cref="BitList"/>
/// 中的元素和指定的 <see cref="BitList"/>
/// 中的相应元素执行按位“异或”运算的结果。</returns>
/// <exception cref="ArgumentNullException"><paramref name="list"/>
/// 为 <c>null</c>。</exception>
/// <exception cref="System.ArgumentException"><paramref name="list"/>
/// 和当前 <see cref="BitList"/> 的元素数不同。</exception>
public BitList Xor(BitList list)
{
CommonExceptions.CheckArgumentNull(list, nameof(list));
if (list._count != _count)
{
throw CommonExceptions.CollectionCountDiffer(nameof(list));
}
Contract.EndContractBlock();
var cnt = _count >> IndexShift;
for (var i = 0; i <= cnt; i++)
{
_items[i] ^= list._items[i];
}
return(this);
}
/// <summary>
/// 判断与其它的列表是否内容相同。
/// </summary>
/// <param name="list">要判断的列表。</param>
/// <returns>如果内容相同，则为 <c>true</c>；否则为 <c>false</c>。</returns>
public bool ContentEquals(BitList list)
{
if (list == null || this.count != list.count)
{
return(false);
}
int end = this.count >> IndexShift;
for (int i = 0; i < end; i++)
{
if (this.items[i] != list.items[i])
{
return(false);
}
}
uint value = this.items[end];
uint value2 = list.items[end];
end = this.count - (end << IndexShift);
uint mask = GetMask(end);
return((value & mask) == (value2 & mask));
}
/// <summary>
/// 判断与其它的列表是否内容相同。
/// </summary>
/// <param name="list">要判断的列表。</param>
/// <returns>如果内容相同，则为 <c>true</c>；否则为 <c>false</c>。</returns>
public bool ContentEquals([CanBeNull] BitList list)
{
if (list == null || _count != list._count)
{
return(false);
}
var end = _count >> IndexShift;
for (var i = 0; i < end; i++)
{
if (_items[i] != list._items[i])
{
return(false);
}
}
var value = _items[end];
var value2 = list._items[end];
end = _count - (end << IndexShift);
var mask = GetMask(end);
return((value & mask) == (value2 & mask));
}