nimcheck/edge_cases.cs at 5a7c24f936eb55cae912ff4d29030fa4239a2f2b

 using System;
 using System.Text;
 using System.Collections.Generic;
 // Unicode comment: 你好世界 🌍🚀
 public class EdgeCases
 {
     public static void Main()
     {
         // Unicode string literals
         string unicode = "こんにちは世界";
         Console.WriteLine(unicode);
         // Null byte embedded
         string nullStr = "hello\x00world";
         Console.WriteLine($"Null-str length: {nullStr.Length}");
         // Deeply nested generics
         var deep = new Dictionary<int, Dictionary<int, Dictionary<int, Dictionary<int, Dictionary<int, string>>>>>
         {
             { 1, new Dictionary<int, Dictionary<int, Dictionary<int, Dictionary<int, string>>>>
                 {
                     { 2, new Dictionary<int, Dictionary<int, Dictionary<int, string>>>
                         {
                             { 3, new Dictionary<int, Dictionary<int, string>>
                                 {
                                     { 4, new Dictionary<int, string> { { 5, "deep" } } }
                                 }
                             }
                         }
                     }
                 }
             }
         };
         Console.WriteLine(deep[1][2][3][4][5]);
         // Very long string
         string longStr = new string('x', 10000);
         Console.WriteLine($"Long string length: {longStr.Length}");
         // BOM prefix
         byte[] bom = { 0xEF, 0xBB, 0xBF, (byte)'H', (byte)'i' };
         Console.WriteLine(Encoding.UTF8.GetString(bom));
         // Deep exception nesting
         try
         {
             try
             {
                 try
                 {
                     throw new InvalidOperationException("inner");
                 }
                 catch (Exception ex)
                 {
                     throw new ApplicationException("middle", ex);
                 }
             }
             catch (Exception ex)
             {
                 throw new Exception("outer", ex);
             }
         }
         catch (Exception ex)
         {
             Console.WriteLine($"Nested exception: {ex.Message}");
         }
     }
 }