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  1. using System;
  2.  
  3. public class Test
  4. {
  5. 	public static void Main()
  6. 	{
  7.         	Console.WriteLine(f(new Nullable<bool>()));
  8.         	Console.WriteLine(f(new Nullable<bool>(true)));
  9.         	Console.WriteLine(f(new Nullable<bool>(false)));
  10. 	}
  11.         private static string f(bool? arg)
  12.         {
  13.             switch (arg)
  14.             {
  15.                 case true: return "true";
  16.                 case false: return "false";
  17.                 case null: return "null";
  18.                 default: return "???";
  19.             }
  20.         }
  21.  
  22. }
Success #stdin #stdout 0.03s 36904KB
comments (?)
stdin 
Standard input is empty
stdout 
null
true
false
https://ideone.com/iuc1R
language:
C# (gmcs 5.20.1)
created:
13 years ago
visibility:
secret

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