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• Can a stack have an exception safe method for returning and removing the top element with move seman

  - by Motti

  In an answer to a question about std::stack::pop() I claimed that the reason pop does not return the value is for exception safety reason (what happens if the copy constructor throws). @Konrad commented that now with move semantics this is no longer relevant. Is this true? AFAIK, move constructors can throw, but perhaps with noexcept it can still be achieved. For bonus points what thread safety guarantees can this operation supply?

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• how a view controller know when it is dismissed or poped out of the navigation controller stack?

  - by Thanh-Cong Vo

  Hi all, My view controller needs to know when it is poped out of the navigation controller stack, so that it can retain itself, wait and release itself later with another notification. I intend to do like that when the view is sent dealloc message: - (void)dealloc { if (self.isPerformingSomeTask) { self.isPopedOut = YES; [self retain]; return; } [super dealloc]; } But I think this is not a good solution? Any idea?

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• Are there reasons why the java/spring/hibernate stack aren't popular in the web 2.0 space?

  - by Blankman

  I am really impressed with the java/spring/hibernate stack, and really want to dive in. Just curious, why are so many people using rails when java/spring/hibernate are tried and true? I guesss its because of the convention over configuration and time to launch? (spring has really gone the annotation route so less xml though). I realize this is subjective, but just looking for some thoughts on this.

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• Allocating on the heap or on the stack - Are there any thumb rules?

  - by eriks

  I am looking for some simple rules to know if i should allocate objects on the heap (using new) or on the stack. (I hope this question is OK :) )

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• How has RIA Technology and what technology stack currently rules this domain ?

  - by Rachel

  I am new to RIA and have not been actively with this technology with all my projects as all of them we using server side Java Technology but I want to gain some experience with RIA and so my question is How has RIA Technology evolved and what technology stack currently rules this domain ? What are the recommended resources for learning RIA and in general what is the suggested approach to get started on RIA Journey ? Thanks.

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• Can Microchip TCP/IP stack implements two or more clients sockets at the same time?

  - by O Engenheiro

  I need to make one device communicate with 2 servers. Is it possible with Microchip TCP/IP stack?

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• What other libraries or tools would you add to a Spring/Hibernate stack for improved rapid applicati

  - by CaptainAwesomePants

  My team at work maintains a fairly large webapp written on top of Spring and Hibernate. We're about to start making some fairly large scale changes to the site, and we're enamored with the rapid application development speeds allowed by some other frameworks, like Rails. We haven't really changed our stack much in the last year or two, and I'm wondering what new tools, approaches, and libraries might be out there to help speed up webapp development.

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• I'm giving a presentation on social media with a short part based on stack overflow how would you de

  - by Paulo

  I'm giving a presentation on social media with a short part based on stack overflow how would you describe its key principles? What are its key benefits over traditional forum/mailing list problem resolution?

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• How has RIA technology evolved and what technology stack currently rules this domain?

  - by Rachel

  I am new to RIA and have not been actively involved with this technology in my projects as we using server-side Java, but I want to gain some experience with RIA. My questions are: How has RIA technology evolved and in your opinion? What technology stack currently rules this domain? What are the recommended resources for learning RIA? In general what is the suggested approach for getting started on the RIA journey?

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• How to get the data buffer of screen in screen stack in Android?

  - by Glory Jiang

  Currently I want to develop one Activity to allow the user to see the screens/activites of all running tasks , then the user can select one of them to switch it to foreground. As I known, HTC Sence seems already to have this implementation for Home screen, to display the thumbnail of all Home panels in one screen. Does anybody know how to access screen stack in Android? Thanks.

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• Python Pickle: what can cause stack index out of range error?

  - by Rosarch

  I'm getting this error: File "C:\Python26\lib\pickle.py", line 1374, in loads return Unpickler(file).load() File "C:\Python26\lib\pickle.py", line 858, in load dispatch[key](self) File "C:\Python26\lib\pickle.py", line 1075, in load_obj k = self.marker() File "C:\Python26\lib\pickle.py", line 874, in marker while stack[k] is not mark: k = k-1 IndexError: list index out of range Why could this be happening?

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• How does Stack Overflow's subjective question detector work? [closed]

  - by csl

  When writing a question in Stack Overflow, it will give you a red bar with a warning if the question looks subjective. Subjective or non-programming questions (e.g., What is your faviourite programming language?) seem to be easily recognized. How, exactly, isthis done? Heuristics, algorithms, machine learning? I'm amazed!

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• Finish any previous activity in stack from current activity?

  - by mob-king

  How to finish any previous activity in application stack (at any level , I mean not immediate parent) , from current activity like on some particular event I want to invalidate this previous activity? Any help ? Thanks.

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• Learning SQL & Microsoft Data Services stack - Where to start?

  - by Jim

  I'm trying to learn the Microsoft data / service stack. I want to build a database in SQL Azure and expose it to a c# client application. I've never worked with any SQL database technology. Looking online, everything just seems so confusing -- too many technologies, hard to tell what's new vs what's old. What's the latest technologies to look at, and what (books?) should I be reading?

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• Referencing a TableViewController property when it is buried on a NavigationController stack.

  - by Michael

  Hello, I have a UINavigationController with two UITableViewControllers pushed onto its stack. Is there any way to reference a property on the first TableViewController that is under the second? I would like to do this in the second controller's viewWillAppear method. Thank you for any help you can give....

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• What features EJB3 bring and also how does EJB3 stack up with Spring Framework ?

  - by Rachel

  I have never worked on ejb, when I started programming Spring was already arrived and all my projects have been with Spring only, recently I had one interview and they wanted knowledge of EJB3.0 and so I want to know how does EJB3.0 stack up with Spring Framework and why many projects now a day are with Spring Framework and not with EJB3.0, do not quote me here as I can be wrong I would really appreciate if difference and benefits of using one over another could be explained from practical perspective.

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• Does cscope has search history or search query stack feature?

  - by teerapap

  I usually dig in the c source code with cscope from method to method more than 4-5 level and I have to step between the methods back and forth. How can I see the search history in cscope so I don't have to remember the previous method name. or it will be better if it's a stack.

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• How can I construct or return the underlying deque from a stack?

  - by BeeBand

  I want to be able to convert a std::stack< to a std::deque<. Is there a straightforward conversion?

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• What do you think of saving stack trace in a special log table ?

  - by EugeneP

  Suppose, you have a special log table of your application. What do you think about creating a BLOB field for a possible stack trace ? Logging is done to file as well, but it is not so convenient to read a text file, moreover database is more "accessible".

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• How to get full stack traces logged when a JUnit test running in ant fails?

  - by Uri

  When a JUnit test throws a runtime exception while running in Eclipse, you can see the entire stack trace. Our build server uses ant and runs JUnit, but the printout on failure only provides the exception's message, not the entire "printStackTrace". Is there a convenient way to get this functionality?

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• Change stack order in mobile view at 1140 grid?

  - by iHaveacomputer

  I want to implement the 1140grid at my site. The layout is pretty simple: 100% header 25% sidebar 75% page 100% footer see also http://jsfiddle.net/KB5Nq/ the problem is that i would like to change the stack order when the site is in mobile view: 100% header 100% page 100% sidebar 100% footer however, by default it arranges the blocks in the same order as they appear in the source code: header, sidebar, page, footer. is there an easy css-only fix for that?

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• To stack tiff bands 3-4-5 obtained in GLCL?

  - by Dalia A. Conde

  Hi all, I need to do a layer stack of different bands to do some analysis. However, I do not have ERSAS any more. And I do not have the Image extension in arc map. Is there any way to do this with free software? Thank you

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• How to copy depth buffer to CPU memory in DirectX?

  - by Ashwin

  I have code in OpenGL that uses glReadPixels to copy the depth buffer to a CPU memory buffer: glReadPixels(0, 0, w, h, GL_DEPTH_COMPONENT, GL_FLOAT, dbuf); How do I achieve the same in DirectX? I have looked at a similar question which gives the solution to copy the RGB buffer. I've tried to write similar code to copy the depth buffer: IDirect3DSurface9* d3dSurface; d3dDevice->GetDepthStencilSurface(&d3dSurface); D3DSURFACE_DESC d3dSurfaceDesc; d3dSurface->GetDesc(&d3dSurfaceDesc); IDirect3DSurface9* d3dOffSurface; d3dDevice->CreateOffscreenPlainSurface( d3dSurfaceDesc.Width, d3dSurfaceDesc.Height, D3DFMT_D32F_LOCKABLE, D3DPOOL_SCRATCH, &d3dOffSurface, NULL); // FAILS: D3DERR_INVALIDCALL D3DXLoadSurfaceFromSurface( d3dOffSurface, NULL, NULL, d3dSurface, NULL, NULL, D3DX_FILTER_NONE, 0); // Copy from offscreen surface to CPU memory ... The code fails on the call to D3DXLoadSurfaceFromSurface. It returns the error value D3DERR_INVALIDCALL. What is wrong with my code?

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• What to call objects that may delete cached data to meet memory constraints?

  - by Brent

  I'm developing some cross-platform software which is intended to run on mobile devices. Both iOS and Android provide low memory warnings. I plan to make a wrapper class that will free cached resources (like textures) when low memory warnings are issued (assuming the resource is not in use). If the resource returns to use, it'll re-cache it, etc... I'm trying to think of what this is called. In .Net, it's similar to a "weak reference" but that only really makes sense when dealing with garbage collection, and since I'm using c++ and shared_ptr, a weak reference already has a meaning which is distinct from the one I'm thinking of. There's also the difference that this class will be able to rebuild the cache when needed. What is this pattern/whatever is called? Edit: Feel free to recommend tags for this question.

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• SAP met l'accent sur son Cloud, le In-Memory et la mobilité et fait la promotion du temps-réel au SAPPHIRE NOW

  SAP : Cloud, In-Memory et mobilité Lors du SAPPHIRE NOW l'éditeur rappelle qu'il s'est diversifié et fait la promotion du temps-réel Depuis aujourd'hui, la grand messe de SAP, le SAPPHIRE NOW, se tient à Madrid. L'évènement regroupe plus de 10.000 personnes et s'est ouvert dans une ambiance de sciences fiction fortement inspirée de Riddley Scott. Mais derrière ce show d'ouverture « à l'américaine », très solennel et montrant un futur transformé (en bien) par les progrès technologiques, le message de SAP est lui bien ancré dans le présent : SAP a changé et veut le faire savoir. Il n'est plus l'éditeur d'un seul produit. Cloud, In-Memory et mobilité sont devenus ses trois piliers.

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