// set theory specific operators
public static IntegerSet operator+(IntegerSet s1, IntegerSet s2)
{
IntegerSet s = (IntegerSet)s1.Clone();
for (int i = 0; i < s2.elements.Length; i++)
{
s.Insert(s2.elements[i]);
}
return(s);
}
public static IntegerSet operator^(IntegerSet s1, IntegerSet s2)
{
IntegerSet s = new IntegerSet();
for (int i = 0; i < s1.elements.Length; i++)
{
int n = s1.elements[i];
if (s2.Contains(n))
{
s.Insert(n);
}
}
return(s);
}
