public void Filter(string word)
{
if (!_filter.Contains(word))
{
Console.WriteLine(word);
}
}
/// <summary>
/// Returns the intersection of this set and that set.
/// </summary>
/// <param name="that">that the other set</param>
/// <returns>the intersection of this set and that set</returns>
/// <exception cref="NullReferenceException">if <tt>that</tt> is <tt>null</tt></exception>
public SET <TKey> Intersects(SET <TKey> that)
{
if (that == null)
{
throw new NullReferenceException("called intersects() with a null argument");
}
var c = new SET <TKey>();
if (Size() < that.Size())
{
foreach (var x in this)
{
if (that.Contains(x))
{
c.Add(x);
}
}
}
else
{
foreach (var x in that)
{
if (this.Contains(x))
{
c.Add(x);
}
}
}
return(c);
}