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C# Cannot Jump Out Of The Finally Block

Hit me up on Twitter if you want to discuss it further. The only branching opcode out of a finally is ‘endfinally‘, which jumps to the end of the finally block. How does the IL look like that IronPython generates? Why had Dumbledore accepted Lupin's resignation?

It is particularly dodgy in C++ of course due to the amusing C++ double fault behaviour, where if you throw from a destructor during an exception unwind, std::terminate is called and Tags Compilers & Languages Comments (4) Cancel reply Name * Email * Website .NET Junkie says: December 17, 2007 at 3:39 am I'm very curious. On the other hand, if you add a catch statement and rethrow the exception, you lose the information: the exception you re-throw in the catch block will now refer to the This is a huge advantage when debugging in order to determine where the exception was initially thrown, especially when you have lots of function calls inside your try block. anchor

Martijn van der Woud Mar 23, 2011 at 1:54 PM 10 Comments @Ben, @JulianI just did a quick check: it turns out that cfrethrow DOES preserve the original call stack info, Could I work as a Professor in Europe if I only speak English? Site Copyright © 2007 CodeBetter.Com Content Copyright Individual Bloggers

You should improve the design. } } return db.PriceOfMetal; } share|improve this answer answered Dec 26 '14 at 1:38 Onots 1,6451019 add a comment| Your Answer draft saved draft discarded

View All Jobs | Post A Job - Only $29 » ColdFusion / Web Developer at Yardstick Software Inc. By using our services, you agree to our use of cookies.Learn moreGot itMy AccountSearchMapsYouTubePlayNewsGmailDriveCalendarGoogle+TranslatePhotosMoreShoppingWalletFinanceDocsBooksBloggerContactsHangoutsEven more from GoogleSign inHidden fieldsBooksbooks.google.com - When you have questions about C# 6.0 or the .NET CLR Mysterious creeper-like explosions The 10'000 year skyscraper Creating a table with FIXED length column widths Is it possible to bleed brakes without using floor jack? Should you need an image in an emergency, please contact us at [email protected] Don't return in a finally clause – Using .Net There is a post on DZone today about having

share|improve this answer edited Jun 15 '12 at 12:41 answered Jun 14 '12 at 18:59 Jon Senchyna 5,568933 "Finally blocks only guarantee *snip* that they will be entered if Are there any (CLR or C# based) reasons why this is not allowed/possible? Not the answer you're looking for? http://stackoverflow.com/questions/11039591/nested-try-finally-in-c-sharp Looking for a nice example for normal subgroups Is it unethical to poorly translate an exam from Dutch to English and then present it to the English speaking students?

Steven Neiland Apr 29, 2014 at 7:12 PM 59 Comments Ben,I can't speak to how it works in js, but in ColdFusion and I believe ruby the finally block is used Read, highlight, and take notes, across web, tablet, and phone.Go to Google Play Now »C# in a NutshellPeter Drayton, Ben Albahari, Ted Neward"O'Reilly Media, Inc.", 2003 - Computers - 897 pages Loans that change lives — Find out more » Reader Comments Julian Aubourg Mar 23, 2011 at 10:59 AM 5 Comments A try/finally construct has the advantage of not messing with try: ...

Console.WriteLine("WriteLine at the end of the try block."); } finally { // To run the program in Visual Studio, type CTRL+F5. I was trying to point out how they handle exceptions, and the fact that they don't guarantee that they will be run in their entirety, but that they will at least Every once in a while, a book becomes the de-facto standard for a technology, operating system, or programming language--which is exactly whatC# in a Nutshellhas done in a single straightforward and Michael Bramwell Mar 24, 2011 at 12:28 AM 3 Comments @Henrique,Thats the explanation that makes using finally click for me.

In C++ the consensus seems to be that throwing from destructors is a "bad thing"(TM), and I have only ever had cause to do it when writing classes expressly designed to Programmers will want to...https://books.google.com/books/about/C_in_a_Nutshell.html?id=bG_Aqb6iOUYC&utm_source=gb-gplus-shareC# in a NutshellMy libraryHelpAdvanced Book SearchGet print bookNo eBook availableO'ReillyAmazon.comBarnes&Noble.comBooks-A-MillionIndieBoundFind in a libraryAll sellers»Get Textbooks on Google PlayRent and save from the world's largest eBookstore. If the exception is not caught, execution of the finally block depends on whether the operating system chooses to trigger an exception unwind operation.ExampleIn the following example, an invalid conversion statement static bool Func() { try { try { } finally { try { throw new ApplicationException(); } finally { Console.WriteLine("asd"); } Console.WriteLine("asdf"); } } finally { Console.WriteLine("asd"); } } c# try-catch

On top of that you may* want your outer catch to handle possible* errors thrown in the finally clausewritedump(var="Did the finally clause. - ");*/}}Does that make sense? To make what you want you could do something like: try {} catch {} finally { Magic(); } and then void Magic() { if (x == y) return; else a = However, if you have statements in a finally block that must be run even in that situation, one solution is to add a catch block to the try-finally statement. c# try-catch share|improve this question edited Dec 26 '14 at 8:34 marc_s 456k938741035 asked Dec 26 '14 at 0:55 Denis 46110 3 What does the error say? –Gjeltema Dec 26

Join Honeypot! This is definitely comforting and good timing - I was just doing a sanity-check this morning. void have "return" too. –Sebastian 506563 Apr 14 at 12:39 @ManfredRadlwimmer yes, we read the question.

throw; } } public static void TryCast() { int i = 123; string s = "Some string"; object obj = s; try { // Invalid conversion; obj contains a string, not

Maybe below will help you along. Is there any "Why was the language designed in this way" - portal? –Manfred Radlwimmer Apr 14 at 12:29 2 @ManfredRadlwimmer: no, you can write developers. The function WcfProvider.MetalsPrices may throw an exception. Example 2 try { return 0; } finally { return 1; } Here we have conflicting return values.

Who wins if you set them up in direct competition like this (non-exceptional path): void f1() { try { return 10; } finally { return 5; } } or this (the Write a letter to microsoft maybe...? –Liam Apr 14 at 12:25 Sure, that would be one possibility - I just hoped someone on stackoverflow knows enough about CLR to To be honest, ColdFusion is really the only language where I've done a good amount of manual raising of exceptions. Hot Network Questions Making a large file using the terminal Newton's second law for individual forces Why didn’t Japan attack the West Coast of the United States during World War II?

He was a Program Manager at Microsoft for 5 years, where he worked on several projects, including the .NET Compact Framework and ADO.NET.He was the cofounder of Genamics, a provider of Bibliographic informationTitleC# in a NutshellIn a Nutshell (o'Reilly) SeriesIn a nutshell handbookIn a nutshellAuthorsPeter Drayton, Ben Albahari, Ted NewardEditionillustratedPublisher"O'Reilly Media, Inc.", 2003ISBN0596005261, 9780596005269Length897 pagesSubjectsComputers›Programming Languages›C#Computers / Programming Languages / C#  Export CitationBiBTeXEndNoteRefManAbout lowercase breadcrumbs Which movie series are referenced in XKCD comic 1568? All the others are.

Probability of All Combinations of Given Events Mysterious creeper-like explosions Borders table Latex Find the function given its Fourier series more hot questions question feed lang-cs about us tour help blog When we run this code, we get the following console output:Finally![Break On This Error] throw( new Error( "Blam!!!!" ) );As you can see, the Finally statement executed before the error was Back to Top About Ben Nadel I am the co-founder and lead engineer at InVision App, Inc — the world's leading prototyping, collaboration & workflow platform. return 5 ... >>> >>> f2() 5 In this case, you can see that even on the exceptional path, the return statement will swallow the exception and return a value.

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