add int exstension

Author: timatet

AlgorithmsLibrary/AlgorithmsLibrary.csproj

@@ -53,6 +53,7 @@
     <Compile Include="CommonClasses\DoublyNode.cs" />
     <Compile Include="CommonClasses\Exception.cs" />
     <Compile Include="CommonClasses\TreeNodePrinter.cs" />
+    <Compile Include="Extensions\IntExtensions.cs" />
     <Compile Include="Extensions\StringBuilderExtensions.cs" />
     <Compile Include="LZ78Algm\LZ78Algm.cs" />
     <Compile Include="LZ78Algm\LZ78CodeBlock.cs" />

AlgorithmsLibrary/Extensions/IntExtensions.cs

@@ -0,0 +1,30 @@
+namespace AlgorithmsLibrary.IntExtensions
+{
+    public static class IntExtensions
+    {
+        public static bool InRange(this int @this, int left, int right)
+        {
+            if (@this >= left && @this <= right)
+                return true;
+            return false;
+        }
+        public static bool InRange(this decimal @this, decimal left, decimal right)
+        {
+            if (@this >= left && @this <= right)
+                return true;
+            return false;
+        }
+        public static bool InRange(this double @this, double left, double right)
+        {
+            if (@this >= left && @this <= right)
+                return true;
+            return false;
+        }
+        public static bool InRange(this long @this, long left, long right)
+        {
+            if (@this >= left && @this <= right)
+                return true;
+            return false;
+        }
+    }
+}