/// <summary>Copies keys to a supplied array, starting at the supplied position.</summary> /// <param name="array">A one-dimensional array that is the destination of the copy.</param> /// <param name="index">The zero-based starting position in <em>array</em>.</param> /// <exception cref="ArgumentNullException">When <em>array</em> is <b>null</b>.</exception> /// <exception cref="ArgumentOutOfRangeException">When <em>index</em> is less than zero.</exception> /// <exception cref="ArgumentException">When not enough space is given for the copy.</exception> void ICollection.CopyTo(Array array, int index) => tree.CopyKeysTo2(array, index);
