fork download
copy 
  1. using System;
  2.  
  3. class A : IDisposable{
  4.   public void Dispose(){
  5.     Console.WriteLine("Dispose A");
  6.     throw new Exception();
  7.   }
  8. }
  9.  
  10. class B : IDisposable{
  11.   public void Dispose(){
  12.     Console.WriteLine("Dispose B");
  13.   }
  14. }
  15.  
  16. class C : IDisposable{
  17.   A a = new A();
  18.   B b = new B();
  19.   public void Dispose(){
  20.     a.Dispose();
  21.     b.Dispose();
  22.   }
  23. }
  24.  
  25. class D : IDisposable{
  26.   A a = new A();
  27.   B b = new B();
  28.   public void Dispose(){
  29.     using(a)
  30.     using(b)
  31.     {}
  32.   }
  33. }
  34.  
  35. class E : IDisposable{
  36.   A a = new A();
  37.   B b = new B();
  38.   public void Dispose(){
  39.     try{a.Dispose();}finally{
  40.     try{b.Dispose();}finally{
  41.     }
  42.     }
  43.   }
  44. }
  45.  
  46. public class Test{
  47.   public static void Main(){
  48.     try{
  49.       using(C c = new C()){
  50.         Console.WriteLine("using C");
  51.       }
  52.     }
  53.     catch(Exception e){Console.WriteLine("catch");}
  54.  
  55.     Console.WriteLine("------------");
  56.  
  57.     try{
  58.       using(D d = new D()){
  59.         Console.WriteLine("using D");
  60.       }
  61.     }
  62.     catch(Exception e){Console.WriteLine("catch");}
  63.  
  64.     Console.WriteLine("------------");
  65.  
  66.     try{
  67.       using(E e = new E()){
  68.         Console.WriteLine("using E");
  69.       }
  70.     }
  71.     catch(Exception e){Console.WriteLine("catch");}
  72.   }
  73. }
Success #stdin #stdout 0.03s 37920KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
using C
Dispose A
catch
------------
using D
Dispose B
Dispose A
catch
------------
using E
Dispose A
Dispose B
catch
https://ideone.com/PBbU9
language:
C# (gmcs 5.20.1)
created:
12 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!