public static HashList <T> Union(HashList <T> ha1, HashList <T> ha2)
{
HashList <T> result = new HashList <T>();
result.AddAll(ha1);
result.AddAll(ha2);
return(result);
}
public static HashList <T> Difference(HashList <T> ha1, HashList <T> ha2)
{
HashList <T> result = new HashList <T>();
foreach (T x in ha1.Where(x => !ha2.Contains(x)))
{
result.Add(x);
}
return(result);
}
public static HashList <T> Intersection(HashList <T> ha1, HashList <T> ha2)
{
HashList <T> result = new HashList <T>();
foreach (var x in ha1.Where(ha2.Contains))
{
result.Add(x);
}
return(result);
}
public bool UnsequencedEquals(HashList <T> that)
{
return(Count == that.Count && seq.All(x => that.set.Contains(x)));
}
