1 files changed, 99 insertions, 0 deletions
diff --git a/Crypto/src/util/collections/HashSet.cs b/Crypto/src/util/collections/HashSet.cs
new file mode 100644
index 000000000..1facb58e3
--- /dev/null
+++ b/Crypto/src/util/collections/HashSet.cs
@@ -0,0 +1,99 @@
+using System;
+using System.Collections;
+
+namespace Org.BouncyCastle.Utilities.Collections
+{
+ public class HashSet
+ : ISet
+ {
+ private readonly IDictionary impl = Platform.CreateHashtable();
+
+ public HashSet()
+ {
+ }
+
+ public HashSet(IEnumerable s)
+ {
+ foreach (object o in s)
+ {
+ Add(o);
+ }
+ }
+
+ public virtual void Add(object o)
+ {
+ impl[o] = null;
+ }
+
+ public virtual void AddAll(IEnumerable e)
+ {
+ foreach (object o in e)
+ {
+ Add(o);
+ }
+ }
+
+ public virtual void Clear()
+ {
+ impl.Clear();
+ }
+
+ public virtual bool Contains(object o)
+ {
+ return impl.Contains(o);
+ }
+
+ public virtual void CopyTo(Array array, int index)
+ {
+ impl.Keys.CopyTo(array, index);
+ }
+
+ public virtual int Count
+ {
+ get { return impl.Count; }
+ }
+
+ public virtual IEnumerator GetEnumerator()
+ {
+ return impl.Keys.GetEnumerator();
+ }
+
+ public virtual bool IsEmpty
+ {
+ get { return impl.Count == 0; }
+ }
+
+ public virtual bool IsFixedSize
+ {
+ get { return impl.IsFixedSize; }
+ }
+
+ public virtual bool IsReadOnly
+ {
+ get { return impl.IsReadOnly; }
+ }
+
+ public virtual bool IsSynchronized
+ {
+ get { return impl.IsSynchronized; }
+ }
+
+ public virtual void Remove(object o)
+ {
+ impl.Remove(o);
+ }
+
+ public virtual void RemoveAll(IEnumerable e)
+ {
+ foreach (object o in e)
+ {
+ Remove(o);
+ }
+ }
+
+ public virtual object SyncRoot
+ {
+ get { return impl.SyncRoot; }
+ }
+ }
+}
|
