Initial Commit

iTechSharp/srcbc/util/collections/HashSet.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Collections;
+
+namespace Org.BouncyCastle.Utilities.Collections
+{
+	public class HashSet
+		: ISet
+	{
+		private readonly Hashtable impl = new Hashtable();
+
+		public HashSet()
+		{
+		}
+
+		public HashSet(ISet s)
+		{
+			foreach (object o in s)
+			{
+				Add(o);
+			}
+		}
+
+		public void Add(object o)
+		{
+			impl[o] = null;
+		}
+
+		public bool Contains(object o)
+		{
+			return impl.ContainsKey(o);
+		}
+
+		public void CopyTo(Array array, int index)
+		{
+			impl.Keys.CopyTo(array, index);
+		}
+
+		public int Count
+		{
+			get { return impl.Count; }
+		}
+
+		public IEnumerator GetEnumerator()
+		{
+			return impl.Keys.GetEnumerator();
+		}
+
+		public bool IsSynchronized
+		{
+			get { return impl.IsSynchronized; }
+		}
+
+		public void Remove(object o)
+		{
+			impl.Remove(o);
+		}
+
+		public object SyncRoot
+		{
+			get { return impl.SyncRoot; }
+		}
+	}
+}