Lesson 84

Author: Ravn0

Benchmark/Benchmark.csproj

@@ -12,6 +12,7 @@
   <ItemGroup>
     <ProjectReference Include="..\BenchmarkLesson\BenchmarkLesson.csproj" />
     <ProjectReference Include="..\Lesson81\Lesson81.csproj" />
+    <ProjectReference Include="..\Lessons\Lessons.csproj" />
   </ItemGroup>
 
 </Project>

Benchmark/Lesson84Lists.cs

@@ -0,0 +1,43 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Running;
+using System.Collections;
+
+namespace Benchmark
+{
+    [MemoryDiagnoser]
+    public class ListsBenchmark
+    {
+        [Benchmark]
+        public void ArrayListSwapBenchmark()
+        {
+            ArrayList arrayList = new ArrayList();
+            for (int i = 0; i < 1000; i++)
+            {
+                arrayList.Add(i);
+            }
+        }
+        [Benchmark]
+        public void ListBenchmark()
+        {
+            List<int> list = new List<int>();
+            for (int i = 0; i < 1000; i++)
+            {
+                list.Add(i);
+            }
+        }
+        [Benchmark]
+        public void ObjectListBenchmark()
+        {
+            List<object> list = new List<object>();
+            for (int i = 0; i < 1000; i++)
+            {
+                list.Add(i);
+            }
+        }
+    }
+}

Benchmark/Lesson84Swaps.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using BenchmarkDotNet.Attributes;
+using BenchmarkDotNet.Running;
+using Lessons;
+
+namespace Benchmark
+{
+    [MemoryDiagnoser]
+    public class SwapsBenchmark
+    {
+        [Benchmark]
+        public void GenericSwapBenchmark()
+        {
+            double a = 1;
+            double b = 5.3;
+            SwapTestClass.GenericSwap(ref a, ref b);
+        }
+        [Benchmark]
+        public void SwapBenchmark()
+        {
+            object a = 2;
+            object b = 4;
+            SwapTestClass.Swap(ref a, ref b);
+        }
+    }
+}

Lessons/Lessons.cs

@@ -905,6 +905,24 @@ public void Add(T value)
             _array = newArray;
         }
     }
+    /**
+     * класс SwapTestClass для Task84()
+     */
+    public static class SwapTestClass
+    {
+        public static void GenericSwap<T>(ref T a, ref T b)
+        {
+            T temp = a;
+            a = b;
+            b = temp;
+        }
+        public static void Swap(ref object a, ref object b)
+        {
+            object temp = a;
+            a = b;
+            b = temp;
+        }
+    }
     /// <summary>
     /// C# УРОКИ | C# ОТ НОВИЧКА К ПРОФЕССИОНАЛУ
     /// By #SimpleCode (https://www.youtube.com/c/SimpleCodeIT/featured)
@@ -3365,7 +3383,7 @@ public static void Task83_2()
             }
         }
         /**
-        * 
+        * Обобщения (generics)
         */
         public static void Task84()
         {