public HashSet(IEnumerable <T> collection, IEqualityComparer <T> comparer)
: this(comparer) {
if (collection == null)
{
throw new ArgumentNullException("collection");
}
int capacity = 0;
ICollection <T> is2 = collection as ICollection <T>;
if (is2 != null)
{
capacity = is2.Count;
}
this.Initialize(capacity);
this.UnionWith(collection);
if (((this.m_count == 0) && (this.m_slots.Length > HashHelpers.GetMinPrime())) || ((this.m_count > 0) && ((this.m_slots.Length / this.m_count) > 3)))
{
this.TrimExcess();
}
}
public HashSet(IEnumerable <T> collection, IEqualityComparer <T> comparer)
: this(comparer)
{
if (collection == null)
{
throw new ArgumentNullException("collection");
}
int suggestedCapacity = 0;
if (collection is ICollection <T> coll)
{
suggestedCapacity = coll.Count;
}
Initialize(suggestedCapacity);
this.UnionWith(collection);
if ((_count == 0 && _slots.Length > HashHelpers.GetMinPrime()) ||
(_count > 0 && _slots.Length / _count > ShrinkThreshold))
{
TrimExcess();
}
}