/// <summary>
/// Determines whether the current <see cref="T:Academy.Collections.Generic.ReadOnlySortedSet`1"/> is a proper (strict) superset of a specified collection.
/// </summary>
/// <param name="other">The collection to compare to the current set.</param>
/// <returns>true if the current <see cref="T:Academy.Collections.Generic.ReadOnlySortedSet"/> is a proper superset of <paramref name="other"/>; otherwise, false.</returns>
public bool IsProperSupersetOf(IEnumerable <T> other)
{
if (other == null)
{
Thrower.ArgumentNullException(ArgumentType.other);
}
if (Count == 0)
{
return(false);
}
ICommonSortedSet <T> sortedset = SetHelper <T> .GetSortedSetIfSameComparer(this, Comparer);
if (sortedset != null)
{
if (sortedset.Count >= Count)
{
return(false);
}
ReadOnlySortedSet <T> subset = this.GetViewBetween(sortedset.MinValue, sortedset.MaxValue);
foreach (T item in sortedset)
{
if (subset.Contains(item))
{
return(false);
}
}
return(true);
}
return(SetHelper <T> .IsProperSubsetOf(this, other));
}
/// <summary>
/// Determines whether the current <see cref="T:Academy.Collections.Generic.ReadOnlySortedSet`1"/> is a superset of a specified collection.
/// </summary>
/// <param name="other">The collection to compare to the current set.</param>
/// <returns>true if the current <see cref="T:Academy.Collections.Generic.ReadOnlySortedSet`1"/> is a superset of <paramref name="other"/>; otherwise, false.</returns>
public bool IsSupersetOf(IEnumerable <T> other)
{
if (other == null)
{
Thrower.ArgumentNullException(ArgumentType.other);
}
if (CollectionHelper.IsWellKnownCollection(other, out int num))
{
if (num == 0)
{
return(true);
}
if (SetHelper <T> .IsWellKnownSet(other))
{
if (this.Count < num)
{
return(false);
}
}
}
ICommonSortedSet <T> sortedset = SetHelper <T> .GetSortedSet(other);
if ((sortedset == null) || !AreEqualComparers(this._comparer, sortedset.Comparer))
{
return(this.ContainsSequence(other));
}
ReadOnlySortedSet <T> subset = this.GetViewBetween(sortedset.MinValue, sortedset.MaxValue);
foreach (T item in sortedset)
{
if (!subset.Contains(item))
{
return(false);
}
}
return(true);
}