/// <summary>Gets the enumerator for the queue.</summary>
/// <returns>An enumerator for the queue.</returns>
public virtual IEnumerator GetEnumerator()
{
return(_heap.GetEnumerator());
}
/// <summary>Gets an enumerator for the heap.</summary>
/// <returns>An enumerator for all elements of the heap.</returns>
public override IEnumerator GetEnumerator()
{
lock (_heap.SyncRoot) return(_heap.GetEnumerator());
}