/// <summary>
/// Logically multiply.
/// </summary>
/// <param name="left"></param>
/// <param name="right"></param>
/// <returns></returns>
public static CharSet operator *(CharSet left,
CharSet right)
{
CharSet result = new CharSet(left);
return(result.And(right));
}
/// <summary>
/// Logically substract.
/// </summary>
/// <param name="left"></param>
/// <param name="right"></param>
/// <returns></returns>
public static CharSet operator -(CharSet left,
CharSet right)
{
CharSet result = new CharSet(left);
return(result.And(new CharSet(right).Not()));
}