public int IndexOf(object value)
{
T[] elementData = this._array;
int length = elementData.Length;
return(CopyOnWriteArray <T> .IndexOf((T)value, elementData, length));
}
public int IndexOf(T item)
{
T[] elementData = this._array;
int length = elementData.Length;
return(CopyOnWriteArray <T> .IndexOf(item, elementData, length));
}