Initial Commit

Common/Auxiliary/ArrayExtensions.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Microsoft.Research.DynamicDataDisplay.Charts;
+
+namespace Microsoft.Research.DynamicDataDisplay.Common.Auxiliary
+{
+	internal static class ArrayExtensions
+	{
+		internal static T Last<T>(this T[] array) {
+			return array[array.Length - 1];
+		}
+
+		internal static T[] CreateArray<T>(int length, T defaultValue)
+		{
+			T[] res = new T[length];
+			for (int i = 0; i < res.Length; i++)
+			{
+				res[i] = defaultValue;
+			}
+			return res;
+		}
+
+		internal static IEnumerable<Range<T>> GetPairs<T>(this IList<T> array)
+		{
+			if (array == null)
+				throw new ArgumentNullException("array");
+
+			for (int i = 0; i < array.Count - 1; i++)
+			{
+				yield return new Range<T>(array[i], array[i + 1]);
+			}
+		}
+	}
+}