public ConcurrentDictionary(IEqualityComparer <TKey> comparer)
 {
     this.comparer           = comparer;
     this.internalDictionary = new SplitOrderedList <TKey, KeyValuePair <TKey, TValue> >(comparer);
 }
 public void Clear()
 {
     // Pronk
     this.internalDictionary = new SplitOrderedList <TKey, KeyValuePair <TKey, TValue> >(this.comparer);
 }