From d07d0e3daea8260caca39fbcd87d4518f7424c7a Mon Sep 17 00:00:00 2001
From: Harald Wolff-Thobaben <haraldwolff@waldrennach.l--n.de>
Date: Thu, 19 Nov 2020 20:39:27 +0100
Subject: [PATCH] Added ArrayStream class

---
 ArrayStream.cs | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 ArrayStream.cs

diff --git a/ArrayStream.cs b/ArrayStream.cs
new file mode 100644
index 0000000..dfbaf67
--- /dev/null
+++ b/ArrayStream.cs
@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Text;
+
+namespace ln.collections
+{
+    public class ArrayStream<T>
+    {
+        public T[] Elements { get; }
+        public int Position { get; set; }
+
+        public ArrayStream(T[] elements)
+        {
+            Elements = elements;
+            Position = 0;
+        }
+        public ArrayStream(IEnumerable<T> elements)
+        {
+            Elements = elements.ToArray();
+            Position = 0;
+        }
+
+        public T Current => Elements[Position];
+        public T Next() => Next(1);
+        public T Next(int forward) => Elements[Position + 1 + forward];
+
+        public bool MoveNext()
+        {
+            if (Position >= Elements.Length)
+                throw new EndOfStreamException();
+
+            Position++;
+            return (Position < Elements.Length);
+        }
+
+        public bool EndOfStream => (Position < Elements.Length);
+
+    }
+}